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  • 07:23 Quadratic Functions 2

    Quadratic Functions 2

    245 views / 0 likes - added

    U10_L1_T1_we2 Quadratic Functions 2 More free lessons at: http://www.khanacademy.org/video?v=dfoXtodyiIA Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 08:49 Autonomic Nervous System: Crash Course A&P #13

    Autonomic Nervous System: Crash Course A&P #13

    602 views / 1 likes - added

    Hank takes you on a tour of your two-part autonomic nervous system. This episode explains how your sympathetic nervous system and parasympathetic nervous system work together as foils, balancing each other out. Their key anatomical differences - where ner

  • 03:44 [Yule Log Audio] The Christmas Song (Chestnuts Roasting on an Open Fire) - Pentatonix

    [Yule Log Audio] The Christmas Song (Chestnuts Roasting on an Open Fire) - Pentatonix

    359 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 02:26 [Yule Log Audio] O Holy Night - Pentatonix

    [Yule Log Audio] O Holy Night - Pentatonix

    426 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:36 [Yule Log Audio] O Come, O Come Emmanuel - Pentatonix

    [Yule Log Audio] O Come, O Come Emmanuel - Pentatonix

    362 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:12 [Yule Log Audio] Little Drummer Boy - Pentatonix

    [Yule Log Audio] Little Drummer Boy - Pentatonix

    447 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:04 [Yule Log Audio] Go Tell It On the Mountain - Pentatonix

    [Yule Log Audio] Go Tell It On the Mountain - Pentatonix

    349 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:14 [Yule Log Audio] Carol of the Bells - Pentatonix

    [Yule Log Audio] Carol of the Bells - Pentatonix

    619 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:42 Popular [Yule Log Audio] Angels We Have Heard on High - Pentatonix

    [Yule Log Audio] Angels We Have Heard on High - Pentatonix

    1,117 views / 2 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

    Featured
  • 04:24 [Yule Log Audio] This Christmas - Pentatonix

    [Yule Log Audio] This Christmas - Pentatonix

    514 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:04 Pentatonix Holiday Video Guide

    Pentatonix Holiday Video Guide

    347 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:27 [Yule Log Audio] Let it Go - Pentatonix

    [Yule Log Audio] Let it Go - Pentatonix

    390 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:14 [Yule Log Audio] Silent Night - Pentatonix

    [Yule Log Audio] Silent Night - Pentatonix

    451 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 02:43 [Yule Log Audio] Santa Claus is Coming to Town - Pentatonix

    [Yule Log Audio] Santa Claus is Coming to Town - Pentatonix

    456 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:06 [Yule Log Audio] It's the Most Wonderful Time of the Year - Pentatonix

    [Yule Log Audio] It's the Most Wonderful Time of the Year - Pentatonix

    356 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 02:08 [Yule Log Audio] Dance of the Sugar Plum Fairy - Pentatonix

    [Yule Log Audio] Dance of the Sugar Plum Fairy - Pentatonix

    344 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:24 [Yule Log Audio] Mary, Did you Know? - Pentatonix

    [Yule Log Audio] Mary, Did you Know? - Pentatonix

    488 views / 2 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:03 [Yule Log Audio] That's Christmas to Me - Pentatonix

    [Yule Log Audio] That's Christmas to Me - Pentatonix

    383 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:29 [Yule Log Audio] Winter Wonderland / Don't Worry Be Happy - Pentatonix ft Tori Kelly

    [Yule Log Audio] Winter Wonderland / Don't Worry Be Happy - Pentatonix ft Tori Kelly

    389 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 02:17 [Yule Log Audio] Sleigh Ride - Pentatonix

    [Yule Log Audio] Sleigh Ride - Pentatonix

    402 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 02:48 [Yule Log Audio] White Winter Hymnal - Pentatonix

    [Yule Log Audio] White Winter Hymnal - Pentatonix

    418 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:10 [Yule Log Audio] Hark! The Herald Angels Sing - Pentatonix

    [Yule Log Audio] Hark! The Herald Angels Sing - Pentatonix

    419 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:42 [Official Video] Silent Night (Live) - Pentatonix

    [Official Video] Silent Night (Live) - Pentatonix

    434 views / 3 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:05 Popular [Official Video] Mary, Did You Know? - Pentatonix

    [Official Video] Mary, Did You Know? - Pentatonix

    955 views / 17 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY“THAT’S CHRISTMAS TO ME” http://smarturl.it/PTXtctmiT?iqiD=YT | BUY "MARY, DID YOU KNOW?" VIDEO http://smarturl.it/PTXMDYKiTv BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt

  • 03:10 Popular [Official Video] White Winter Hymnal - Pentatonix (Fleet Foxes Cover)

    [Official Video] White Winter Hymnal - Pentatonix (Fleet Foxes Cover)

    726 views / 8 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT | BUY WHITE WINTER HYMNAL VIDEO http://smarturl.it/PTXWWHiTv BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | B

  • 04:14 [Official Video] Papaoutai– Pentatonix ft. Lindsey Stirling (Stromae Cover)

    [Official Video] Papaoutai– Pentatonix ft. Lindsey Stirling (Stromae Cover)

    698 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:11 [Official Video] La La Latch - Pentatonix (Sam Smith/Disclosure/Naughty Boy Mashup)

    [Official Video] La La Latch - Pentatonix (Sam Smith/Disclosure/Naughty Boy Mashup)

    652 views / 2 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:38 Popular [Official Video] Problem - Pentatonix (Ariana Grande Cover)

    [Official Video] Problem - Pentatonix (Ariana Grande Cover)

    2,431 views / 18 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

    Featured
  • 03:20 Popular [Official Video] Love Again - Pentatonix

    [Official Video] Love Again - Pentatonix

    1,244 views / 6 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:23 Happy - Pentatonix (Pharrell Cover)

    Happy - Pentatonix (Pharrell Cover)

    485 views / 3 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:40 [Official Video] Say Something - Pentatonix (A Great Big World&Christina Aguilera Cover)

    [Official Video] Say Something - Pentatonix (A Great Big World&Christina Aguilera Cover)

    668 views / 4 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:26 [Official Video] Run to You - Pentatonix

    [Official Video] Run to You - Pentatonix

    436 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:24 [Official Video] I Need Your Love - Pentatonix (Calvin Harris feat. Ellie Goulding Cover)

    [Official Video] I Need Your Love - Pentatonix (Calvin Harris feat. Ellie Goulding Cover)

    648 views / 3 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:36 [Official Video] Angels We Have Heard On High - Pentatonix

    [Official Video] Angels We Have Heard On High - Pentatonix

    463 views / 4 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:14 [Official Video] Little Drummer Boy - Pentatonix

    [Official Video] Little Drummer Boy - Pentatonix

    664 views / 3 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 02:17 [Official Video] Cruisin' for a Bruisin' - Pentatonix

    [Official Video] Cruisin' for a Bruisin' - Pentatonix

    530 views / 2 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:56 [Official Video] Daft Punk - Pentatonix

    [Official Video] Daft Punk - Pentatonix

    679 views / 9 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 06:11 Evolution of Beyoncé - Pentatonix

    Evolution of Beyoncé - Pentatonix

    414 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:31 Popular [Official Video] Royals - Pentatonix (Lorde Cover)

    [Official Video] Royals - Pentatonix (Lorde Cover)

    959 views / 5 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:09 [Official Video] Can't Hold Us - Pentatonix (Macklemore&Ryan Lewis cover)

    [Official Video] Can't Hold Us - Pentatonix (Macklemore&Ryan Lewis cover)

    680 views / 4 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:29 Evolution of Music - Pentatonix

    Evolution of Music - Pentatonix

    591 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:22 Popular [Official Video] Radioactive - Pentatonix&Lindsey Stirling (Imagine Dragons cover)

    [Official Video] Radioactive - Pentatonix&Lindsey Stirling (Imagine Dragons cover)

    1,234 views / 14 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:29 Thrift Shop - Pentatonix (Macklemore&Ryan Lewis cover)

    Thrift Shop - Pentatonix (Macklemore&Ryan Lewis cover)

    482 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:37 [Official Video] Save the World/Don't You Worry Child - Pentatonix (Swedish House Mafia Cover)

    [Official Video] Save the World/Don't You Worry Child - Pentatonix (Swedish House Mafia Cover)

    537 views / 3 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:57 NSYNC Medley - Pentatonix

    NSYNC Medley - Pentatonix

    342 views / 0 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 04:11 Popular [Official Video] Carol of the Bells - Pentatonix

    [Official Video] Carol of the Bells - Pentatonix

    892 views / 5 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY P

    Featured
  • 03:15 [Official Video] Aha! - Pentatonix (Imogen Heap Cover)

    [Official Video] Aha! - Pentatonix (Imogen Heap Cover)

    685 views / 2 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:24 Popular GANGNAM STYLE (강남 스타일) - Pentatonix (PSY Cover)

    GANGNAM STYLE (강남 스타일) - Pentatonix (PSY Cover)

    825 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:36 Payphone - Pentatonix (Maroon 5 Cover)

    Payphone - Pentatonix (Maroon 5 Cover)

    496 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:40 Popular [Official Video] Starships - Pentatonix (Nicki Minaj Cover)

    [Official Video] Starships - Pentatonix (Nicki Minaj Cover)

    730 views / 4 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:43 As Long As You Love Me / Wide Awake - Pentatonix (Justin Bieber / Katy Perry Cover)

    As Long As You Love Me / Wide Awake - Pentatonix (Justin Bieber / Katy Perry Cover)

    664 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 03:27 We Are Young - Pentatonix (Fun Cover)

    We Are Young - Pentatonix (Fun Cover)

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  • 03:26 Somebody That I Used To Know - Pentatonix (Gotye cover)

    Somebody That I Used To Know - Pentatonix (Gotye cover)

    684 views / 1 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 10:44 Sympathetic Nervous System: Crash Course A&P #14

    Sympathetic Nervous System: Crash Course A&P #14

    436 views / 0 likes - added

    Hank tries not to stress you out too much as he delves into the functions and terminology of your sympathetic nervous system. -- Table of Contents Sympathetic Nervous System Controls the Body's Stress Response 0:26 How Signals Travel to Effectors 1:48 Ace

  • 07:24 Superbugs: The Empire Strikes Bacteria

    Superbugs: The Empire Strikes Bacteria

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    Check out GROSS SCIENCE: http://bit.ly/1DH5zbv Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart↓ More info and sources below ↓ Are we entering the post-antibiotic era? Antibiotic-resistant bacteria are on the rise, with millions of infections re

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  • 07:05 The Recipe For Life…

    The Recipe For Life…

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    We're cookin' in the primordial kitchen! Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart↓ More info and sources below ↓ If the human body could be distilled down into one molecule, what would our chemical formula be? And WHY is it that way? Is

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  • 05:06 %$?# Allergies!

    %$?# Allergies!

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    It’s the season for sneezin’! Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Springtime means the arrival of green grass, bright flowers, and buzzing bees. But for many of us, it’s also about sneezing, watery re

  • 04:01 How Many Stars Are There?

    How Many Stars Are There?

    482 views / 2 likes - added

    Counting stars from the shore of the cosmic ocean… Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ LIKE THE SHIRT I'M WEARING? It's glow in the dark! You can get it here (along with space undies and other good st

  • 03:12 What Color Is The Universe?

    What Color Is The Universe?

    484 views / 2 likes - added

    Hint: It’s not black Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ When you stare up at the night sky, you might think that the universe is really black, but that’s just because our eyes aren’t sensitive enough

  • 05:40 Your #ScienceWoman Heroes

    Your #ScienceWoman Heroes

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    Watch all the #ScienceWoman videos here: http://bit.ly/1BLwuSF Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart↓ More info below ↓ We teamed up with Amy Poehler’s Smart Girls to ask you who your #sciencewoman heroes are: https://www.youtube.com/

  • 06:35 Attack Of The Zombie Parasites!

    Attack Of The Zombie Parasites!

    508 views / 3 likes - added

    Did someone say BRAAAAAINS…? Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Shows like The Walking Dead are full of hungry, mindless, surprisingly fleet-footed armies of brain-eating zombies. Could they actually

  • 04:47 Why Does February Only Have 28 Days?

    Why Does February Only Have 28 Days?

    556 views / 4 likes - added

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  • 07:23 Why Vaccines Work

    Why Vaccines Work

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    A dose of reality about vaccines… Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ As more and more parents are choosing not to vaccinate their children or are vaccinating them later, diseases like measles are mak

  • 04:46 How Many Heartbeats Do We Get?

    How Many Heartbeats Do We Get?

    425 views / 0 likes - added

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  • 04:05 What Is Déjà Vu?!

    What Is Déjà Vu?!

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  • 05:13 5 Weird Involuntary Behaviors Explained!

    5 Weird Involuntary Behaviors Explained!

    521 views / 0 likes - added

    Yawns, hiccups, twitchy eyes (and more) explained! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on In

  • 05:02 There's No Such Thing As Cold

    There's No Such Thing As Cold

    504 views / 1 likes - added

    If cold isn’t real, then how can I feel it? Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram

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  • 04:34 How Many Smells Can You Smell?

    How Many Smells Can You Smell?

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  • 06:34 Does My Dog Know What I'm Thinking?

    Does My Dog Know What I'm Thinking?

    557 views / 0 likes - added

    Head to BrainCraft for more doggy science! http://youtu.be/OBy3idLwwYM Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesm

  • 07:34 Why People Don't Believe In Climate Science

    Why People Don't Believe In Climate Science

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    Watch Part 1:“The Facts” http://youtu.be/ffjIyms1BX4 Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on

  • 06:20 Climate Science: What You Need To Know

    Climate Science: What You Need To Know

    407 views / 1 likes - added

    Learn the basic science of climate change in 24 easy steps Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Foll

  • 04:32 Where Do Birds Go In Winter?

    Where Do Birds Go In Winter?

    612 views / 1 likes - added

    And where do they keep their suitcases? Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: ht

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  • 09:12 The Sixth Extinction

    The Sixth Extinction

    575 views / 2 likes - added

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  • 05:31 Why Are Some People Left-Handed?

    Why Are Some People Left-Handed?

    467 views / 0 likes - added

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  • 03:42 How To See Time Travel!!!

    How To See Time Travel!!!

    362 views / 1 likes - added

    Behold the COSMOTRON 5000!!! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instag

  • 04:52 Why Does The Earth Have Layers?

    Why Does The Earth Have Layers?

    655 views / 3 likes - added

    …or why we live on an onion made of magma. Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram:

  • 06:29 Popular Why Do Clouds Stay Up?

    Why Do Clouds Stay Up?

    727 views / 1 likes - added

    There’s nothing wrong with having your head in the clouds. Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Foll

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  • 03:59 Popular A Slice Of Pizza Science!

    A Slice Of Pizza Science!

    889 views / 1 likes - added

    How does math keep a folded slice from drooping? And what does pizza have to do with the speed of light?↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com How a 19th Century

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  • 05:21 Bats: Guardians Of The Night

    Bats: Guardians Of The Night

    592 views / 5 likes - added

    To see all the great bat action, please watch in HD!! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Visit Bat

  • 06:03 The Physics Of Space Battles

    The Physics Of Space Battles

    453 views / 0 likes - added

    How scientifically accurate is your favorite sci-fi space battle? Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.c

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  • 05:45 What's The Deadliest Animal In The World?

    What's The Deadliest Animal In The World?

    531 views / 2 likes - added

    Besides humans, of course. Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Gates Foundation info on the world’s

  • 03:11 Where Does The Smell Of Rain Come From?

    Where Does The Smell Of Rain Come From?

    649 views / 0 likes - added

    I smell a science storm a-comin'!! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com References: “Nature of Argil

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  • 10:17 Parasympathetic Nervous System: Crash Course A&P #15

    Parasympathetic Nervous System: Crash Course A&P #15

    587 views / 0 likes - added

    This week we are looking at your parasympathetic division, which is the "resting and digesting" unit. Unfortunately, learning about this de-stressing division also involves a whole lot of memorization. Don't worry, though - we've got some mnemonic devices

  • 04:51 Popular What If There Were No Sharks?

    What If There Were No Sharks?

    1,274 views / 13 likes - added

    Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Follow this link to more shark science videos by your favorite YouTubers!! http://bit.ly/1sugd0z↓ More info and sources below ↓ Follow on Twitter:

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  • 06:10 The Oldest Living Things In The World

    The Oldest Living Things In The World

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  • 02:02 The Sun Is A Magnet!

    The Sun Is A Magnet!

    495 views / 0 likes - added

    Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Sunspots, solar flares, coronal mass ejections, OH MY! Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub↓ More info and sources below ↓ F

  • 04:46 How Your Body Knows Left From Right

    How Your Body Knows Left From Right

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  • 04:14 You Are An Upside-Down Lobster

    You Are An Upside-Down Lobster

    446 views / 1 likes - added

    Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Here's why you aren't built like a lobster. Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub↓ More info and sources below ↓ Follow on Tw

  • 04:25 Why Your Brain Is In Your Head

    Why Your Brain Is In Your Head

    550 views / 0 likes - added

    Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Check out BrainCraft: http://youtu.be/aucscX191vQ Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub↓ More info and sources below ↓ Follow

  • 05:54 The Delicious Science Of CHEESE!

    The Delicious Science Of CHEESE!

    358 views / 0 likes - added

    Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- There's science in cheese? You'd cheddar believe it. Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub Follow on Twitter: http://twitter.

  • 08:23 Is Ultron Inevitable?

    Is Ultron Inevitable?

    549 views / 0 likes - added

    Follow me to Vsauce3!! http://bit.ly/1zUxn7a Twitter: @okaytobesmart @jtotheizzoe Instagram: @jtotheizzoe↓ More info and sources below ↓ Will artificial intelligence ever surpass human intelligence? And if that happens, will AI be good or bad? Is evil AI

  • 10:30 Popular Taste&Smell: Crash Course A&P #16

    Taste&Smell: Crash Course A&P #16

    705 views / 0 likes - added

    Hank resists the urge to devour a slice of pizza so that he can walk you through the way we experience our major special senses. It all boils down to one thing: sensory cells translating chemical, electromagnetic, and mechanical stimuli into action potent

  • 12:18 Copyright Basics: Crash Course Intellectual Property 2

    Copyright Basics: Crash Course Intellectual Property 2

    465 views / 0 likes - added

    EPISODE DESCRIPTION This week, Stan Muller teaches you the basics of copyright in the United States. Copyright law is territorial, so we're going to cover the system we know the most about, and that's the US. Stan will talk about what kind of ideas can be

  • 06:12 Could We Clone Ourselves?

    Could We Clone Ourselves?

    364 views / 0 likes - added

    Just be yourself! Or be your other self. Whichever. Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Is the science of Orphan Black realistic? Could we clone humans, or engineer them to have customized traits? We

  • 10:40 Hearing & Balance: Crash Course A&P #17

    Hearing & Balance: Crash Course A&P #17

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    Crash Course A&P continues the journey through sensory systems with a look at how your sense of hearing works. We follow sounds as they work there way into the ear where they are registered and transformed into action potentials. This mechanism not only h

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  • 11:39 Copyright, Exceptions, And Fair Use: Crash Course Intellectual Property #3

    Copyright, Exceptions, And Fair Use: Crash Course Intellectual Property #3

    466 views / 0 likes - added

    Stan Muller teaches you a few things about copyright enforcement, and talks about the exceptions to copyright enforcement. While there are several, the one you've probably heard of is Fair Use, and it's a pretty tricky one. We'll try to explain it, and te

  • 04:34 Under The Hood: The Chemistry Of Cars - Cynthia Chubbuck

    Under The Hood: The Chemistry Of Cars - Cynthia Chubbuck

    474 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/under-the-hood-the-chemistry-of-cars-cynthia-chubbuck There are over one billion cars in the world right now, getting people from point A to point B. But cars aren't just a mode of transportation; they also teac

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  • 04:08 What's The Loudest Possible Sound?

    What's The Loudest Possible Sound?

    481 views / 1 likes - added

    It’s definitely higher than “11” Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ What is the loudest possible sound? What about the quietest thing we can hear? And what do decibels measure, anyway? In this video

  • 09:51 Patents, Novelty, And Trolls: Crash Course Intellectual Property #4

    Patents, Novelty, And Trolls: Crash Course Intellectual Property #4

    491 views / 0 likes - added

    This week, Stan teaches you about patents. It turns out, they're patently complicated! So, patents have some similarity to copyright, in that they grant a limited monopoly to people who invent things. The key difference in patents and copyright is that pa

  • 09:39 Vision: Crash Course A&P #18

    Vision: Crash Course A&P #18

    625 views / 0 likes - added

    Next stop in our tour of your sensory systems? VISION. With a little help from an optical illusion, we take a look inside your eyes to try to figure out how your sense of vision works -- and how it can be tricked. *** Table of Contents The Structure of th

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  • 10:53 When Will We Run Out Of Names?

    When Will We Run Out Of Names?

    544 views / 0 likes - added

    Vsauce is nominated for a Webby in Science & Education! You can support learning online by voting for Vsauce or any of the FANTASTIC nominees here: http://pv.webbyawards.com/2015/online-film-video/video-channels-and-networks/science-education THANKS!! SOU

  • 10:38 Popular The Skeletal System: Crash Course A&P #19

    The Skeletal System: Crash Course A&P #19

    773 views / 1 likes - added

    Today Hank explains the skeletal system and why astronauts Scott Kelly and Mikhail Kornienko are out in space studying it. He talks about the anatomy of the skeletal system, including the flat, short, and irregular bones, and their individual arrangements

  • 04:20 How Batteries Work - Adam Jacobson

    How Batteries Work - Adam Jacobson

    425 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/why-batteries-die-adam-jacobson Batteries are a triumph of science—they allow smartphones and other technologies to exist without anchoring us to an infernal tangle of power cables. Yet even the best batteries w

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  • 09:23 Joints: Crash Course A&P #20

    Joints: Crash Course A&P #20

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    We continue our look at your bones and skeletal system, skipping over the silly kid's song in favor of a more detailed look at your your axial and appendicular skeleton. This episode also talks about the structural and functional classifications of your j

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  • 10:00 International IP Law: Crash Course Intellectual Property #6

    International IP Law: Crash Course Intellectual Property #6

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    This week, Stan Muller teaches you how intellectual property law functions internationally. Like, between countries. Well, guess what. There's kind of no such thing as international law. But we can talk about treaties. There are a bevy of international tr

  • 10:24 Muscles, Part 1 - Muscle Cells: Crash Course A&P #21

    Muscles, Part 1 - Muscle Cells: Crash Course A&P #21

    694 views / 1 likes - added

    We're kicking off our exploration of muscles with a look at the complex and important relationship between actin and myosin. Your smooth, cardiac, and skeletal muscles create movement by contracting and releasing in a process called the sliding filament m

  • 05:11 Will We Ever Run Out Of Oil?

    Will We Ever Run Out Of Oil?

    437 views / 1 likes - added

    Check out our whole series on ENERGY! http://bit.ly/1BnH5zu Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ We’ve heard news of “peak oil” and “the end of the oil age” for years now, but we keep coming up with wa

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  • 04:18 The Surprising Places We Waste Energy

    The Surprising Places We Waste Energy

    480 views / 0 likes - added

    Check out our whole series on ENERGY! http://bit.ly/1BnH5zu Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ We use a LOT of energy, but we waste a lot too. Where that waste happens might surprise, you though. We

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  • 06:31 Popular Did Dinosaurs Really Go Extinct?

    Did Dinosaurs Really Go Extinct?

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    Welcome to… Jurassic Pluck Subscribe: http://bit.ly/iotbs_sub Twitter: @jtotheizzoe @okaytobesmart ↓ More info and sources below ↓ Most people are taught that dinosaurs went extinct 66 million years ago when a giant meteor crashed into the Yucatan peninsu

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  • 05:22 The Essentials Of Energy

    The Essentials Of Energy

    381 views / 1 likes - added

    Check out our whole series on ENERGY! http://bit.ly/1BnH5zu Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ The world of energy is a confusing place. What’s better, nuclear or solar? What’s the difference between

  • 03:25 Popular Does The Moon Really Orbit The Earth?

    Does The Moon Really Orbit The Earth?

    730 views / 2 likes - added

    What holds the moon up? Moonbeams! Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ According to Newton’s law of gravitation, the sun should “pull” way harder on the moon than the Earth does. So does the moon actu

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  • 10:41 Muscles, Part 2 - Organismal Level: Crash Course A&P #22

    Muscles, Part 2 - Organismal Level: Crash Course A&P #22

    590 views / 1 likes - added

    Hank calls in a friend to do his push ups for him today to explain how skeletal muscles work together to create and reverse movements. Hank and Claire also demonstrate the role size plays in motor units, the three phase cycle of muscle twitches, and how t

  • 10:25 Endocrine System, Part 1 - Glands & Hormones: Crash Course A&P #23

    Endocrine System, Part 1 - Glands & Hormones: Crash Course A&P #23

    680 views / 0 likes - added

    Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based and water soluble, or steroidal and lipid-soluble, and may target many types of cells or just turn on spe

  • 04:21 Why Are The Bees Dying?

    Why Are The Bees Dying?

    697 views / 4 likes - added

    If bees go, will they take us with them? Subscribe: http://bit.ly/iotbs_sub Twitter: @jtotheizzoe @okaytobesmart ↓ More info and sources below ↓ Bees, wild and domesticated, are in big trouble. Bee colonies are dying off at alarming rates, and the cause i

  • 05:39 Which Came First - Flowers Or Bees?

    Which Came First - Flowers Or Bees?

    583 views / 2 likes - added

    Stop and smell the flowers… and watch this video Subscribe: http://bit.ly/iotbs_sub Twitter: @jtotheizzoe @okaytobesmart ↓ More info and sources below ↓ Bees and flowers have an amazingly close relationship. Flowers need bees in order to reproduce, and be

  • 01:48 Sesame Street: F Is For Fox

    Sesame Street: F Is For Fox

    395 views / 0 likes - added

    D is for Dog, E is for Egg. And what's a good word that starts with the letter F? Feathers? Fancy? Fast? Fossil? Yes! Those are all words that start with the letter F. Want one more? Ok, F is for Fox! Subscribe to the Sesame Street Channel here: http://ww

  • 09:34 Endocrine System, Part 2 - Hormone Cascades: Crash Course A&P #24

    Endocrine System, Part 2 - Hormone Cascades: Crash Course A&P #24

    509 views / 0 likes - added

    In the second half of our look at the endocrine system, Hank discusses chemical homeostasis and hormone cascades. Specifically, he looks at the hypothalamus-pituitary-thyroid axis, or HPT axis, and all the ways your body can suffer when that system, or yo

  • 06:01 Thomas Jefferson And The Giant Moose

    Thomas Jefferson And The Giant Moose

    508 views / 1 likes - added

    E pluribus moose-um Subscribe: http://bit.ly/iotbs_sub Twitter: @jtotheizzoe @okaytobesmart ↓ More info and sources below ↓ America’s first great science battle wasn’t the space race or the atom bomb, it was fought between Thomas Jefferson, a French noble

  • 10:08 Popular The Heart, Part 1 - Under Pressure: Crash Course A&P #25

    The Heart, Part 1 - Under Pressure: Crash Course A&P #25

    786 views / 0 likes - added

    Your heart gets a lot of attention from poets, songwriters, and storytellers, but today Hank's gonna tell you how it really works. The heart’s ventricles, atria, and valves create a pump that maintains both high and low pressure to circulate blood from th

  • 05:46 Popular Is War Over? — A Paradox Explained

    Is War Over? — A Paradox Explained

    804 views / 1 likes - added

    We live in the most peaceful time in human history. Wait, what? Seriously? That can't be right, there are more wars than ever! Well, no and they're killing fewer and fewer people, even though the world population is at an all-time high...and the numbers p

  • 12:09 Intro To Economics: Crash Course Econ #1

    Intro To Economics: Crash Course Econ #1

    570 views / 1 likes - added

    In which Jacob Clifford and Adriene Hill launch a brand new Crash Course on Economics! So, what is economics? Good question. It's not necessarily about money, or stock markets, or trade. It's about people and choices. What, you may ask, does that mean. We

  • 06:23 Your Salad Is Trying To Kill You

    Your Salad Is Trying To Kill You

    433 views / 0 likes - added

    The dose makes the poison… Subscribe: http://bit.ly/iotbs_sub Twitter: @jtotheizzoe @okaytobesmart ↓ More info and sources below ↓ Plants are the most important source of nutrients for pretty much all of Earth's animals, and many of the planet's bacteria

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  • 04:29 How Does A Canyon Become Grand?

    How Does A Canyon Become Grand?

    506 views / 5 likes - added

    And a very Grand Canyon it is… Subscribe: http://bit.ly/iotbs_sub Twitter: @jtotheizzoe @okaytobesmart ↓ More info and sources below ↓ Thanks to Mike from PBS Idea Channel and Jamin from PBS Game/Show for hanging out at the Grand Canyon with me! https://w

  • 09:34 Popular The Heart, Part 2 - Heart Throbs: Crash Course A&P #26

    The Heart, Part 2 - Heart Throbs: Crash Course A&P #26

    735 views / 1 likes - added

    Today we're talking the heart and heart throbs -- both literal and those of the televised variety. Hank explains how your heart’s pacemaker cells use leaky membranes to generate their own action potentials, and how the resulting electricity travels throug

  • 09:04 Popular Specialization And Trade: Crash Course Economics #2

    Specialization And Trade: Crash Course Economics #2

    1,455 views / 1 likes - added

    In which Adriene Hill and Jacob Clifford teach you about specialization and trade, and how countries decide whether they're going to make stuff or trade for stuff. You'll learn about things like comparative advantage, the production possibilities frontier

  • 04:16 LEGO COMPUTER!!! -- LÜT #52

    LEGO COMPUTER!!! -- LÜT #52

    577 views / 0 likes - added

    Follow on Instagram: https://instagram.com/kevlieber/ LÜT is a showcase of some of the coolest and weirdest things you can buy online. *** LINKS TO EVERYTHING *** Mocoro Robot Cleaning Ball (0:00) http://www.firebox.com/product/6901/Mocoro-Robot-Cleaning-

  • 00:23 Kitten Massage Therapy

    Kitten Massage Therapy

    369 views / 0 likes - added

    Music: Represent Bear Fox 1491s http://www.youtube.com/watch?v=68gPWdaZGbE

  • 09:30 Blood Vessels, Part 1 - Form And Function: Crash Course A&P #27

    Blood Vessels, Part 1 - Form And Function: Crash Course A&P #27

    537 views / 0 likes - added

    Now that we've discussed blood, we're beginning our look at how it gets around your body. Today Hank explains your blood vessels and their basic three-layer structure of your blood vessels. We're also going over how those structures differ slightly in dif

  • 04:32 How Blood Pressure Works - Wilfred Manzano

    How Blood Pressure Works - Wilfred Manzano

    516 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-blood-pressure-works-wilfred-manzano If you lined up all the blood vessels in your body, they’d be 60 thousand miles long. And every day, they carry the equivalent of over two thousand gallons of blood to th

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  • 08:30 A Brief History Of Everything, Feat. Neil DeGrasse Tyson

    A Brief History Of Everything, Feat. Neil DeGrasse Tyson

    460 views / 0 likes - added

    This video brought to you by http://www.audible.com/minutephysics Thanks to Neil deGrasse Tyson for his amazing writing and narration! Music: "The Firebird Suite" by Igor Stravinsky, performed by the USAF Band, licensed from Naxos of America, Inc. for wor

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  • 02:52 Top 3 Exotic Animals You Can Own As Pets

    Top 3 Exotic Animals You Can Own As Pets

    604 views / 2 likes - added

    It's actually LEGAL in many U.S. states and other countries to own skunks, fennec foxes, and capybaras as pets! We're putting out new episodes Monday-Saturday, so please tune in daily and subscribe! Download the new Animalist iOS App: http://anmlst.co/1dI

  • 09:04 Blood Vessels, Part 2: Crash Course A&P #28

    Blood Vessels, Part 2: Crash Course A&P #28

    540 views / 0 likes - added

    And now we return to blood vessels. In this episode, we start discussing what blood pressure is, how it can become "high", and what that means for our health. One of the more interesting points is that your body has ways of dealing with high blood pressur

  • 10:18 Economic Systems And Macroeconomics: Crash Course Economics #3

    Economic Systems And Macroeconomics: Crash Course Economics #3

    654 views / 0 likes - added

    In which Jacob Clifford and Adrienne Hill teach you about Economic Systems and Macroeconomics. So, economics is basically about choices. We'll look at some of the broadest economic choices when we talk about the difference between planned economies and ma

  • 10:00 Popular Blood, Part 1 - True Blood: Crash Course A&P #29

    Blood, Part 1 - True Blood: Crash Course A&P #29

    758 views / 0 likes - added

    Now that we've talked about your blood vessels, we're going to zoom in a little closer and talk about your blood itself. We'll start by outlining the basic components of blood -- including erythrocytes, leukocytes, platelets, and plasma -- as well as the

  • 10:01 Blood, Part 2 - There Will Be Blood: Crash Course A&P #30

    Blood, Part 2 - There Will Be Blood: Crash Course A&P #30

    553 views / 0 likes - added

    It's time to start talking about some of the terrible things you can do to your own body, like blood doping. We'll start by explaining the structure and function of your erythrocytes, and of hemoglobin, which they use to carry oxygen. We'll follow the for

  • 10:22 Popular Supply And Demand: Crash Course Economics #4

    Supply And Demand: Crash Course Economics #4

    1,440 views / 1 likes - added

    In which Adriene Hill and Jacob Clifford teach you about one of the fundamental economic ideas, supply and demand. What is supply and demand? Well, you’ll have to watch the video to really understand it, but it’s kind of important for everything economica

  • 06:18 What Has New Horizons Taught Us About Pluto?

    What Has New Horizons Taught Us About Pluto?

    376 views / 2 likes - added

    Pluto's not just cool… it's ICE COLD Tweet ⇒ http://bit.ly/OKTBSpluto Share on FB ⇒ http://bit.ly/OKTBSplutoFB ↓ More info and sources below ↓ Since New Horizons flew by Pluto on July 14, 2015, it’s completely redefined what we know about the dwarf planet

  • 04:12 What Is Fire?

    What Is Fire?

    364 views / 0 likes - added

    T-SHIRTS! http://dftba.com/besmart Tweet ⇒ http://bit.ly/OKTBSfire Share on FB ⇒ http://bit.ly/OKTBSfireFB ↓ More info and sources below ↓ Why does fire burn? What’s the chemistry and physics of a flame? This week, learn about the beautiful science happen

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  • 06:31 Why Do We Laugh?

    Why Do We Laugh?

    391 views / 0 likes - added

    Several jokes were harmed in the making of this video Tweet ⇒ http://bit.ly/OKTBSlaugh Share on FB ⇒ http://bit.ly/OKTBSlaughFB ↓ More info and sources below ↓ T-SHIRTS! http://dftba.com/besmart Laughing is a universal human behavior, one that transcends

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  • 06:33 Why Are Cicadas So Good At Math?

    Why Are Cicadas So Good At Math?

    363 views / 0 likes - added

    T-SHIRTS! http://dftba.com/besmart VIDCON! http://bit.ly/1DqnxeQ Follow me to Gross Science: http://youtu.be/IDBkj3DjNSM ↓ More info and sources below ↓ Do periodical cicadas “know” how to calculate prime numbers? One of the strangest life cycles in all o

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  • 09:22 Popular Respiratory System, Part 1: Crash Course A&P #31

    Respiratory System, Part 1: Crash Course A&P #31

    823 views / 2 likes - added

    So we all know that breathing is pretty important, right? Today we're going to talk about how it works, starting with the nameless evolutionary ancestor that we inherited this from, and continuing to the mechanics of both simple diffusion and bulk flow, a

  • 13:43 Popular Macroeconomics: Crash Course Economics #5

    Macroeconomics: Crash Course Economics #5

    735 views / 0 likes - added

    This week, Adriene and Jacob teach you about macroeconomics. This is the stuff of big picture economics, and the major movers in the economy. Like taxes and monetary policy and inflation and policy. We need this stuff, because if you don't have a big pict

  • 07:20 Incredible Tails Of Amazing Whales!

    Incredible Tails Of Amazing Whales!

    485 views / 1 likes - added

    Joe's proposed SXSW panel is "Science on YouTube: Where the Smart Kids Are". Vote for it before 9/4! http://vid.io/xqTj Whales are AMAZING! Check out #BigBlueLive: http://pbs.org/bigbluelive Tweet ⇒ http://bit.ly/OKTBSwhales Share on FB ⇒ http://bit.ly/OK

  • 08:51 Productivity And Growth: Crash Course Economics #6

    Productivity And Growth: Crash Course Economics #6

    509 views / 1 likes - added

    Why are some countries rich? Why are some countries poor? In the end it comes down to Productivity. This week on Crash Course Econ, Adriene and Jacob investigate just why some economies are more productive than others, and what happens when an economy is

  • 10:23 Respiratory System, Part 2: Crash Course A&P #32

    Respiratory System, Part 2: Crash Course A&P #32

    540 views / 1 likes - added

    Can a paper bag really help you when you are hyperventilating? It turns out that it can. In part 2 of our look at your respiratory system Hank explains how your blood cells exchange oxygen and CO2 to maintain homeostasis. We'll dive into partial pressure

  • 05:18 I Don't Think You're Ready For These Jellies

    I Don't Think You're Ready For These Jellies

    361 views / 0 likes - added

    Check out #BigBlueLive! http://pbs.org/bigbluelive ↓ More info and sources below ↓ Jellyfish are mesmerizing and beautiful and I have no idea how they work. So I went behind the scenes at the Monterey Bay Aquarium with my new friend Tommy to learn all abo

  • 04:42 Cuttlefish: Tentacles In Disguise

    Cuttlefish: Tentacles In Disguise

    314 views / 1 likes - added

    Joe's proposed SXSW panel is "Science on YouTube: Where the Smart Kids Are". Vote for it before 9/4! http://vid.io/xqTj Check out #BigBlueLive! http://pbs.org/bigbluelive Tweet ⇒ http://bit.ly/OKTBScuttle Share on FB ⇒ http://bit.ly/OKTBScuttleFB ↓ More i

  • 04:21 The Ruin And Rise Of Monterey Bay

    The Ruin And Rise Of Monterey Bay

    300 views / 0 likes - added

    Joe's proposed SXSW panel is "Science on YouTube: Where the Smart Kids Are". Vote for it before 9/4! http://vid.io/xqTj Check out #BigBlueLive! http://pbs.org/bigbluelive Share on FB ⇒ http://bit.ly/OKTBSriseFB ↓ More info and sources below ↓ Before peopl

  • 07:17 A Sea Otter's Adorable Adoption Story

    A Sea Otter's Adorable Adoption Story

    504 views / 5 likes - added

    Joe's proposed SXSW panel is "Science on YouTube: Where the Smart Kids Are". Vote for it before 9/4! http://vid.io/xqTj Check out #BigBlueLive! http://pbs.org/bigbluelive Tweet ⇒ http://bit.ly/OKTBS696 Share on FB ⇒ http://bit.ly/OKTBS696FB ↓ More info an

  • 03:10 8 Incredible Deep Sea Oddities!

    8 Incredible Deep Sea Oddities!

    593 views / 0 likes - added

    Joe's proposed SXSW panel is "Science on YouTube: Where the Smart Kids Are". Vote for it before 9/4! http://vid.io/xqTj Check out #BigBlueLive! http://pbs.org/bigbluelive Tweet ⇒ http://bit.ly/OKTBSdeep Share on FB ⇒ http://bit.ly/OKTBSdeepFB ↓ More info

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  • 03:32 Popular Why I'm Scared Of Spiders

    Why I'm Scared Of Spiders

    809 views / 4 likes - added

    Joe's proposed SXSW panel is "Science on YouTube: Where the Smart Kids Are". Vote for it before 9/4! http://vid.io/xqTj The science of… OH GOD IS THAT A SPIDER?! Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ F

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  • 02:49 Fable : Chicken Little

    Fable : Chicken Little

    667 views / 0 likes - added

    Poor Chicken Little! After getting bonked on the head with an acorn, she's convinced the sky is falling. She tells her friends, and they hurry off to tell the king, but will sly Foxy Woxy lead them astray? Readers can interact with all of Chicken Little's

  • 11:05 Popular Digestive System, Part 1: Crash Course A&P #33

    Digestive System, Part 1: Crash Course A&P #33

    759 views / 2 likes - added

    Nachos are delicious. And versatile because today they're also going to help us learn a thing or two about your digestive system. Nachos can provide us with energy and raw materials, by first ingesting something nutritious, propelling it through the alime

  • 10:25 Inflation And Bubbles And Tulips: Crash Course Economics #7

    Inflation And Bubbles And Tulips: Crash Course Economics #7

    540 views / 0 likes - added

    In which Adriene and Jacob teach you about how and why prices rise. Sometimes prices rise as a result of inflation, which is a pretty normal thing for economies to do. We'll talk about how across the board prices rise over time, and how economists track i

  • 10:55 Digestive System, Part 2: Crash Course A&P #34

    Digestive System, Part 2: Crash Course A&P #34

    694 views / 1 likes - added

    Nearly 200 years ago, Alexis St. Martin was shot in the stomach. He was saved by local army doctor William Beaumont, but had to live out his remaining years with a gaping hole in the stomach -- allowing Beaumont to learn a lot about how human digestion wo

  • 11:54 Popular Fiscal Policy And Stimulus: Crash Course Economics #8

    Fiscal Policy And Stimulus: Crash Course Economics #8

    786 views / 0 likes - added

    In which Jacob and Adriene teach you about the evils of fiscal policy and stimulus. Well, maybe the policies aren't evil, but there is an evil lair involved. In this episode we learn how government use taxes and spending influence the economy. Sometimes t

  • 04:59 What Happens When Your DNA Is Damaged? - Monica Menesini

    What Happens When Your DNA Is Damaged? - Monica Menesini

    395 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-happens-when-your-dna-is-damaged-monica-menesini The DNA in just one of your cells gets damaged tens of thousands of times per day. Because DNA provides the blueprint for the proteins your cells need to fun

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  • 07:12 Theory Vs. Hypothesis Vs. Law… Explained!

    Theory Vs. Hypothesis Vs. Law… Explained!

    423 views / 0 likes - added

    Think you know the difference? Tweet ⇒ http://bit.ly/OKTBStheory Share on FB ⇒ http://bit.ly/theoryFB ↓ More info and sources below ↓ Some people try to attack things like evolution by natural selection and man-made climate change by saying “Oh, that’s ju

  • 04:23 A Curable Condition That Causes Blindness - Andrew Bastawrous

    A Curable Condition That Causes Blindness - Andrew Bastawrous

    290 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/a-curable-condition-that-causes-blindness-andrew-bastawrous An estimated 20 million cases of blindness worldwide are caused by cataracts, a curable condition affecting the lens that focuses images onto the eye’s

  • 08:22 Why Do We Have To Sleep?

    Why Do We Have To Sleep?

    355 views / 2 likes - added

    …and how did it evolve in the first place? Tweet ⇒ http://bit.ly/OKTBSsleep Share on FB ⇒ http://bit.ly/OKTBSsleepFB ↓ More info and sources below ↓ Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we

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  • 10:33 Metabolism & Nutrition, Part 1: Crash Course A&P #36

    Metabolism & Nutrition, Part 1: Crash Course A&P #36

    448 views / 0 likes - added

    Metabolism is a complex process that has a lot more going on than personal trainers and commercials might have you believe. Today we are exploring some of its key parts, including vital nutrients -- such as water, vitamins, minerals, carbs, fats, and prot

  • 07:31 Deficits & Debts: Crash Course Economics #9

    Deficits & Debts: Crash Course Economics #9

    489 views / 0 likes - added

    What is debt? What is a deficit? And do these things have different outcomes for individuals and nations? Adriene and Jacob answer all these questions and more on this week's Crash Course Econ. Deficit and debt are easy to misunderstand, but luckily, they

  • 10:24 Digestive System, Part 3: Crash Course A&P #35

    Digestive System, Part 3: Crash Course A&P #35

    567 views / 1 likes - added

    Nachos are great...if you are among the lucky ones whose body can digest them. When digestion goes according to plan, the small intestine performs most of your chemical digestion in the duodenum, while accessory organs including the liver, gallbladder, an

  • 06:43 El Niño And Why We Can't Predict The Weather

    El Niño And Why We Can't Predict The Weather

    410 views / 1 likes - added

    Is your weatherman wrong? Blame El Niño. ↓ More info and sources below ↓ What is El Niño? Why can’t we predict the weather? El Niño could be to blame for your ruined weekend plans. Just a few slight changes can drastically shift the weather. Even our smar

  • 10:08 Metabolism & Nutrition, Part 2: Crash Course Anatomy & Physiology #37

    Metabolism & Nutrition, Part 2: Crash Course Anatomy & Physiology #37

    531 views / 0 likes - added

    If you're like us, you love the sound of a brunch buffet. But not everything you eat at that glorious buffet is going to be turned into energy. Your body has to work with different forms of food in different ways. In this episode of Crash Course Anatomy &

  • 09:25 What's All The Yellen About? Monetary Policy And The Federal Reserve: Crash Course Economics #10

    What's All The Yellen About? Monetary Policy And The Federal Reserve: Crash Course Economics #10

    469 views / 0 likes - added

    This week on Crash Course Economics, we're talking about monetary policy. The reality of the world is that the United States (and most of the world's economies) are, to varying degrees, Keynesian. When things go wrong, economically, the central bank of th

  • 10:18 Urinary System, Part 1: Crash Course A&P #38

    Urinary System, Part 1: Crash Course A&P #38

    529 views / 1 likes - added

    Even though you probably don't choose to spend a lot of time thinking about it, your pee is kind of a big deal. Today we're talking about the anatomy of your urinary system, and how your kidneys filter metabolic waste and balance salt and water concentrat

  • 04:09 What Color Is The Moon?

    What Color Is The Moon?

    483 views / 2 likes - added

    How the night sky tricks our brains! ↓ More info and sources below ↓ Here’s how you all described the color of the moon: https://www.facebook.com/itsokaytobesmart/photos/a.337182013046136.73328.173915612706111/801410886623244/ http://www.itsokaytobesmart.

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  • 10:36 Money And Finance: Crash Course Economics #11

    Money And Finance: Crash Course Economics #11

    521 views / 1 likes - added

    So, we've been putting off a kind of basic question here. What is money? What is currency? How are the two different. Well, not to give away too much, but money has a few basic functions. It acts as a store of value, a medium of exchange, and as a unit of

  • 07:49 Flavor Science: What's Really In A Pumpkin Spice Latte

    Flavor Science: What's Really In A Pumpkin Spice Latte

    481 views / 0 likes - added

    If you take a look at an ingredients list, odds are you’ll find natural and artificial flavors somewhere in there. Turns out there’s a whole science to making your pumpkin spice latte taste like pumpkin spice, or your potato chips taste like pizza. Hosted

  • 09:51 Urinary System, Part 2: Crash Course A&P #39

    Urinary System, Part 2: Crash Course A&P #39

    452 views / 2 likes - added

    As we promised last week, we're not quite done talking about your pee yet. Today Hank explains how the urinary system regulates the production of urine, by maintaining a study glomerular flow rate. He'll also cover the anatomy of storing and excreting uri

  • 06:51 How To Hit A Fastball (According To Science!!!)

    How To Hit A Fastball (According To Science!!!)

    381 views / 1 likes - added

    This episode is brought to you by Dropbox https://www.dropbox.com/ Tweet this ⇒ http://bit.ly/OKTBSbase Share on FB ⇒ http://bit.ly/OKTBSbaseFB ↓ More info and sources below ↓ We’ve got t-shirts! Get yours here: http://store.dftba.com/collections/its-okay

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  • 11:25 The 2008 Financial Crisis: Crash Course Economics #12

    The 2008 Financial Crisis: Crash Course Economics #12

    385 views / 0 likes - added

    Today on Crash Course Economics, Adriene and Jacob talk about the 2008 financial crisis and the US Goverment's response to the troubles. So, all this starts with home mortgages, and the use of mortgages as an investment instrument. For years, it seemed li

  • 09:54 Recession, Hyperinflation, And Stagflation: Crash Course Econ #13

    Recession, Hyperinflation, And Stagflation: Crash Course Econ #13

    591 views / 0 likes - added

    If you're ever put in charge of a national economy, there are a few things you should try to avoid. Before you laugh, just remember, you COULD be in charge of an economy someday. Someone has to do it, and anyway, if it could happen to Alan Greenspan, it c

  • 03:57 How The Elements Got Their Names

    How The Elements Got Their Names

    480 views / 0 likes - added

    There's a story inside every box SUBSCRIBE, it's FREE! http://bit.ly/iotbs_sub ↓ More below ↓ Ever wonder what all those names on the periodic table actually mean? There's a whole lot of fascinating history on Mendeleev's table. Some carry names

  • 02:41 Why Don't Sleeping Bats Fall Down?

    Why Don't Sleeping Bats Fall Down?

    596 views / 0 likes - added

    Bats sleep upside down, so how come they don’t fall? Turns out that they’ve got some unusual legs. Hosted by: Michael Aranda ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Justin O

  • 05:24 Do Animals Mourn Their Dead? (ft. BrainCraft And Gross Science!)

    Do Animals Mourn Their Dead? (ft. BrainCraft And Gross Science!)

    366 views / 0 likes - added

    This episode is brought to you by Dropbox https://www.dropbox.com/ Follow me to Gross Science: https://youtu.be/kRUt9pqMCSg and BrainCraft: https://youtu.be/Joalg73L_gw ↓ More info and sources below ↓ Tweet ⇒ http://bit.ly/OKTBSmourn Share on FB ⇒ http://

  • 10:05 Economic Schools Of Thought: Crash Course Economics #14

    Economic Schools Of Thought: Crash Course Economics #14

    575 views / 0 likes - added

    We talk a lot about Keynesian economics on this show, pretty much because the real world currently runs on Keynesian principles. That said, there are some other economic ideas out there, and today we're going to talk about a few of them. So, if you've bee

  • 03:28 Popular How To Survive As A Tiny Arctic Fox - Wild Alaska - BBC

    How To Survive As A Tiny Arctic Fox - Wild Alaska - BBC

    1,215 views / 16 likes - added

    Deadhorse in Alaska, one of the coldest and remotest settlements on Earth is not the most welcoming place for a tiny Arctic Fox. Taken from Wild Alaska. Subscribe to BBC Earth: http://www.youtube.com/subscription_center?add_user=BBCEarth BBC Earth YouTube

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  • 06:42 The REAL Physics Of Hot Air Balloons!

    The REAL Physics Of Hot Air Balloons!

    446 views / 0 likes - added

    This episode is brought to you by Dropbox https://www.dropbox.com/ Tweet ⇒ http://bit.ly/OKTBShotair Share on FB ⇒ http://bit.ly/OKTBShotairFB ↓ More info and sources below ↓ We uploaded another version of this video on 11/9 but it had a big mistake in it

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  • 02:50 How Do Car Horns Work?

    How Do Car Horns Work?

    422 views / 0 likes - added

    The next time you honk your car horn at that jerk who cut you off, you’ll understand how it uses physics to get the job done. Learn more at HowStuffWorks.com Share on Facebook: https://goo.gl/ICxuu4 Share on Twitter: https://goo.gl/m6dpEV Subscribe: http:

  • 00:31 Popular Marcy The Vampire Hunter | Play Now | Cartoon Network

    Marcy The Vampire Hunter | Play Now | Cartoon Network

    2,593 views / 28 likes - added

    You can play this great game for free online. Take down old school vamps one by one! Play Marcy the Vampire Hunter now! Copy and past this link: http://bit.ly/1kbDtiw You will need a browser that runs flash, like Firefox or Internet Explorer for it to wor

  • 10:11 Imports, Exports, And Exchange Rates: Crash Course Economics #15

    Imports, Exports, And Exchange Rates: Crash Course Economics #15

    631 views / 0 likes - added

    What is a trade deficit? Well, it all has to do with imports and exports and, well, trade. This week Jacob and Adriene walk you through the basics of imports, exports, and exchange. So, you remember the specialization and trade thing, right? So, that lead

  • 05:46 Can Coral Reefs Survive Climate Change? #OursToLose

    Can Coral Reefs Survive Climate Change? #OursToLose

    647 views / 5 likes - added

    This episode is brought to you by Dropbox https://www.dropbox.com/ Tweet ⇒ http://bit.ly/OKTBScoral Share on FB ⇒ http://bit.ly/OKTBScoralFB ↓ More info and sources below ↓ We can’t afford to wait any longer to act on climate change. Check out #OursToLose

  • 07:14 The Strange Science Of The Placebo Effect

    The Strange Science Of The Placebo Effect

    461 views / 1 likes - added

    This episode is brought to you by Dropbox https://www.dropbox.com/ Tweet ⇒ http://bit.ly/OKTBSplacebos Share on FB ⇒ http://bit.ly/OKTBSplaceboFB ↓ More info and sources below ↓ Follow me to Reactions to learn what is (and isn’t) in those vitamin suppleme

  • 02:27 Popular Zootopia Official Sloth Trailer #1 (2016) - Disney Animated Movie HD

    Zootopia Official Sloth Trailer #1 (2016) - Disney Animated Movie HD

    1,268 views / 5 likes - added

    Subscribe to TRAILERS: http://bit.ly/sxaw6h Subscribe to COMING SOON: http://bit.ly/H2vZUn Like us on FACEBOOK: http://goo.gl/dHs73 Follow us on TWITTER: http://bit.ly/1ghOWmt Zootopia Official Sloth Trailer #1 (2016) - Disney Animated Movie HD In the ani

  • 09:02 Globalization And Trade And Poverty: Crash Course Economics #16

    Globalization And Trade And Poverty: Crash Course Economics #16

    585 views / 0 likes - added

    What is globalization? Is globalization a good thing or not. Well, I have an answer that may not surprise you: It's complicated. This week, Jacob and Adriene will argue that globalization is, in aggregate, good. Free trade and globalization tend to provid

  • 09:20 Lymphatic System: Crash Course A&P #44

    Lymphatic System: Crash Course A&P #44

    661 views / 0 likes - added

    Today Hank explains your unsung lymphatic system and how it supports cardiovascular function by collecting, filtering, and returning interstitial fluid back into the bloodstream via a system of lymphatic vessels. He also explains the system’s major role i

  • 05:35 Popular Could Planet Minecraft Actually Exist?

    Could Planet Minecraft Actually Exist?

    920 views / 3 likes - added

    This episode is brought to you by Dropbox https://www.dropbox.com/ Tweet ⇒ http://bit.ly/OKTBSmcraft Share on FB ⇒ http://bit.ly/OKTBSmcraftFB ↓ More info and sources below ↓ Gravitational field of a cubic planet: Chappell, James Michael, et al. "The grav

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  • 10:16 Income And Wealth Inequality: Crash Course Economics

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