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• 09:20

### Keynesian Cross

286 views / 0 likes - added

Analyzing planned expenditures versus actual output using the Keynesian Cross More free lessons at: http://www.khanacademy.org/video?v=sTw0e-hwYAQ

• 10:08

### Earth Formation

525 views / 0 likes - added

How the Earth is a the byproduct of a local supernova More free lessons at: http://www.khanacademy.org/video?v=VbNXh0GaLYo

• 15:27

### Introduction to Kinetics

280 views / 0 likes - added

Kinetics, activation energy, activated complex and catalysts. More free lessons at: http://www.khanacademy.org/video?v=__zy-oOLPug

• 11:38

### Cupcake Economics 2

358 views / 0 likes - added

• 12:53

### Unemployment

338 views / 0 likes - added

Analyzing unemployment data to show that "real" unemployment is worse than the headline numbers show. More free lessons at: http://www.khanacademy.org/video?v=vUOiOi-XaoQ

• 03:10

### Simple Analysis of Cost per Job Saved from Stimulus

363 views / 0 likes - added

Simple analysis of cost per job saved from stimulus More free lessons at: http://www.khanacademy.org/video?v=sSqxVMbml_k

• 07:39

### ANOVA 1 - Calculating SST (Total Sum of Squares)

504 views / 0 likes - added

Analysis of Variance 1 - Calculating SST (Total Sum of Squares) More free lessons at: http://www.khanacademy.org/video?v=EFdlFoHI_0I

• 13:20

### ANOVA 2 - Calculating SSW and SSB (Total Sum of Squares Within and Between).avi

553 views / 0 likes - added

Analysis of Variance 2 - Calculating SSW and SSB (Total Sum of Squares Within and Between).avi More free lessons at: http://www.khanacademy.org/video?v=j9ZPMlVHJVs

• 10:14

### ANOVA 3 -Hypothesis Test with F-Statistic

417 views / 0 likes - added

Analysis of Variance 3 -Hypothesis Test with F-Statistic More free lessons at: http://www.khanacademy.org/video?v=Xg8_iSkJpAE

• 09:57

### Federal Reserve Balance Sheet

468 views / 0 likes - added

Analysis of the federal reserve balance sheet as of Feb 2007. More free lessons at: http://www.khanacademy.org/video?v=MILF-9GeMDQ

• 13:16 Popular

### Charles V and the Holy Roman Empire: Crash Course World History #219

732 views / 0 likes - added

Get the new Crash Course World History Character poster here: http://store.dftba.com/products/crashcourse-characters-poster In which John Green teaches you about the Holy Roman Empire by teaching you about Charles V. Charles Hapsburg was the holy Roman Em

• 12:24

### Rorschach&Freudians: Crash Course Psychology #21

449 views / 0 likes - added

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as \$0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

• 11:23

### Getting Help - Psychotherapy: Crash Course Psychology #35

464 views / 0 likes - added

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as \$0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

• 09:46

### Atomic Hook-Ups - Types of Chemical Bonds: Crash Course Chemistry #22

505 views / 0 likes - added

Atoms are a lot like us - we call their relationships "bonds," and there are many different types. Each kind of atomic relationship requires a different type of energy, but they all do best when they settle into the lowest stress situation possible. The n

• 07:25

### Battles of the Civil War: Crash Course US History #19

601 views / 4 likes - added

Disclaimer: This is very different than the usual Crash Course US History episode. In which John Green lists a whole lot of the battles of the US Civil War in seven and a half minutes. We get a lot of requests for military history, so we offer a list of b

• 12:45 Popular

### Growth, Cities, and Immigration: Crash Course US History #25

780 views / 2 likes - added

In which John Green teaches you about the massive immigration to the United States during the late 19th and early 20th century. Immigrants flocked to the US from all over the world in this time period. Millions of Europeans moved to the US where they drov

• 13:12

### Reader, it's Jane Eyre - Crash Course Literature 207

539 views / 1 likes - added

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as \$0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th

• 09:42

### The Lives of Nonvascular Plants: Alternation of Generations - Crash Course Biology #36

570 views / 0 likes - added

Hank introduces us to nonvascular plants - liverworts, hornworts&mosses - which have bizarre features, kooky habits, and strange sex lives. Nonvascular plants inherited their reproductive cycle from algae, but have perfected it to the point where it i

• 05:05

### An Acquiring Mind: An Inside Look, Part Two

321 views / 0 likes - added

Great Museums presents Part Two of its new webisode series titled: "The Metropolitan Museum of Art: The Philippe de Montebello Years: Curators Celebrate Three Decades of Acquisitions". Helen C. Evans, the Mary and Michael Jaharis Curator of Byzantine Art,

• 02:34

### An Acquiring Mind: An Inside Look, Part One

410 views / 0 likes - added

Great Museums presents Part One of its new webisode series titled: "The Metropolitan Museum of Art: The Philippe de Montebello Years: Curators Celebrate Three Decades of Acquisitions". Helen C. Evans, the Mary and Michael Jaharis Curator of Byzantine Art,

• 03:44

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

385 views / 0 likes - added

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• 02:26

### [Yule Log Audio] O Holy Night - Pentatonix

456 views / 0 likes - added

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• 03:36

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

390 views / 1 likes - added

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• 04:12

### [Yule Log Audio] Little Drummer Boy - Pentatonix

477 views / 1 likes - added

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• 03:04

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

375 views / 0 likes - added

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• 03:14

### [Yule Log Audio] Carol of the Bells - Pentatonix

645 views / 0 likes - added

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• 03:42 Popular

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

1,152 views / 2 likes - added

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Featured
• 04:24

### [Yule Log Audio] This Christmas - Pentatonix

554 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

376 views / 0 likes - added

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• 03:27

### [Yule Log Audio] Let it Go - Pentatonix

412 views / 0 likes - added

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• 03:14

### [Yule Log Audio] Silent Night - Pentatonix

491 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

492 views / 1 likes - added

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• 03:06

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

385 views / 0 likes - added

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• 02:08

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

378 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

522 views / 2 likes - added

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• 03:03

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

405 views / 0 likes - added

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• 03:29

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

431 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

423 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

448 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

454 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

• 02:21 Popular

### [Official Video] Dance of the Sugar Plum Fairy - Pentatonix

749 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

• 03:42

### [Official Video] Silent Night (Live) - Pentatonix

468 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

• 03:25

### [Official Video] That’s Christmas To Me - Pentatonix

611 views / 1 likes - added

WATCH OUR VLOG to Find Out What Christmas Means to PTX http://smarturl.it/PTXtctmVlog 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://smartu

• 04:05 Popular

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

1,027 views / 17 likes - added

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• 03:46

### [Official Video] Winter Wonderland/Don’t Worry Be Happy - Pentatonix (ft Tori Kelly)

625 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 "WINTER WONDERLAND/DON'T WORRY BE HAPPY" VIDEO http://smarturl.it/PTXWWiTv BUY PTX VOL III http://smarturl.i

• 03:10 Popular

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

785 views / 9 likes - added

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• 04:10 Popular

### [Official Video] Rather Be - Pentatonix (Clean Bandit Cover)

839 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

• 04:14 Popular

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

742 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)

693 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)

2,511 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

1,294 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)

517 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 Popular

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

725 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

459 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)

697 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

513 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

699 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

566 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 Popular

### [Official Video] Daft Punk - Pentatonix

738 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

447 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)

1,013 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 Popular

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

711 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

623 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)

1,309 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)

530 views / 1 likes - added

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• 04:37

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

583 views / 3 likes - added

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• 03:57

### NSYNC Medley - Pentatonix

379 views / 0 likes - added

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• 04:11 Popular

### [Official Video] Carol of the Bells - Pentatonix

929 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

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

744 views / 2 likes - added

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

861 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)

534 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)

783 views / 4 likes - added

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• 03:43 Popular

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

706 views / 1 likes - added

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• 03:27

### We Are Young - Pentatonix (Fun Cover)

442 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

• 03:26 Popular

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

711 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

• 02:12

### Batting Tips From An All-Star: Getting Ready In The On-Deck Circle

449 views / 0 likes - added

This week's hitting tip from MLB Network analyst and former All-Star Harold Reynolds is all about preparation. Harold shows you how to get ready in the on-deck circle so you'll be crushing the ball once you get into the batter's box!

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• 02:10

### Batting Tips From A Pro: Developing A Consistent Swing

468 views / 1 likes - added

We're back with more batting tips from MLB Network analyst and former All-Star Harold Reynolds! In this week's video he explains how to develop a consistent swing that will boost your batting average this season.

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• 02:35

### Hitting Tips From Harold Reynolds: Perfecting Your Stance And Grip

415 views / 1 likes - added

Over the next few weeks as you get ready for your little league season, SI Kids and Franklin Baseball will feature some great hitting tips from former Seattle Mariners All-Star second baseman and MLB Network analyst Harold Reynolds. Check out this week's

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### Does My Dog Know What I'm Thinking?

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344 views / 0 likes - added

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2,264 views / 0 likes - added

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• 03:14

### How To Subtract By Adding

498 views / 0 likes - added

Brought to you by http://www.lynda.com/minutephysics https://en.wikipedia.org/wiki/Method_of_complements Hank's adding machine video: https://www.youtube.com/watch?v=JYT8oH-NODs Thanks to the following Subbable subscribers for making MinutePhysics possibl

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• 02:16 Popular

### How Big Is The Sun?

1,702 views / 3 likes - added

Thanks to http://www.squarespace.com/minutephysics for sponsoring this video! MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and enterta

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### How Do Airplanes Fly?

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573 views / 0 likes - added

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• 04:07 Popular

### Did Shakespeare Write His Plays? - Natalya St. Clair And Aaron Williams

767 views / 1 likes - added

View full lesson: http://ed.ted.com/lessons/did-shakespeare-write-his-plays-natalya-st-clair-and-aaron-williams Some people question whether Shakespeare really wrote the works that bear his name – or whether he even existed at all. Could it be true that t

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### The Unexpected Math Behind Van Gogh's

559 views / 1 likes - added

View full lesson: http://ed.ted.com/lessons/the-unexpected-math-behind-van-gogh-s-starry-night-natalya-st-clair Physicist Werner Heisenberg said, “When I meet God, I am going to ask him two questions: why relativity? And why turbulence? I really bel

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### Music And Math: The Genius Of Beethoven - Natalya St. Clair

826 views / 1 likes - added

View full lesson: http://ed.ted.com/lessons/music-and-math-the-genius-of-beethoven-natalya-st-clair How is it that Beethoven, who is celebrated as one of the most significant composers of all time, wrote many of his most beloved songs while going deaf? Th

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• 07:20

### 1943 - Allies Gain Even More Momentum In WW II

407 views / 0 likes - added

In 1943, the tide really turns in favor of the Allies in World War II. They are able to push the Axis out of N.Africa and force a surrender from Italy (along with Mussolini being deposed). The Soviets are able to start pushing the Axis out of the Soviet U

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### 1943 Axis Losing In Europe

476 views / 0 likes - added

In 1943, the tide really turns in favor of the Allies in World War II. They are able to push the Axis out of N.Africa and force a surrender from Italy (along with Mussolini being deposed). The Soviets are able to start pushing the Axis out of the Soviet U

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### What Is This Mysterious Spiral Anomaly In The Norwegian Sky?

479 views / 0 likes - added

Scientists still have no explaination for the strange spiral lights that once appeared in Norway's sky and was witnessed by thousands as far away as Sweden. | http://www.sciencechannel.com/tv-shows/nasas-unexplained-files/ Catch NASA's UNEXPLAINED FILES W

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• 03:12

### Is There Life On Kepler-186f? | NASA's Unexplained Files

410 views / 0 likes - added

Scientists analyze data from the Kepler telescope. An earth size planet is found in the "habitable" zone. The planet could have an earth-like atmosphere but the oceans would be yellow due to the dwarf star. | For more, visit http://www.sciencechannel.com/

• 03:18

### Are We Really 99% Chimp?

512 views / 1 likes - added

Get 10% off of your first order with Squarespace http://squarespace.com/minuteearth Thanks also to our Patreon patrons: - Owner - Jeff Straathof - Mark - Maarten Bremer - Today I Found Out - Avi Yashchin - Valentin - Nicholas Buckendorf - @AntoineCoeur __

• 03:48

### How To Detect A Secret Nuclear Test

598 views / 1 likes - added

Thanks to the CTBTO for helping keep the world safe by detecting secret nuclear tests. http://www.ctbto.org http://www.twitter.com/ctbto_alerts http://www.facebook.com/CTBTO http://www.youtube.com/CTBTO Music by Nathaniel Schroeder http://www.soundcloud.c

• 02:34

### Upside Down Mountains In Real Life

544 views / 1 likes - added

Research on global mountain surface areas: http://bit.ly/1eJyqCM This video is supported by http://www.lynda.com/minutephysics Thanks to the following Subbable subscribers for making MinutePhysics possible: Marc Vigod @WeAretheProduct Knowledge Videos: ht

• 02:54 Popular

### Why Raindrops Are Mathematically Impossible

1,227 views / 1 likes - added

Rain shouldn't happen, according to basic physics. Click here to watch the MinuteEarth video about rain: https://www.youtube.com/watch?v=87v_9Bud7vw This video supported by Audible.com/minutephysics Thanks to the following Subbable subscribers for making

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• 03:57

### How Do Bikes Stay Up?

578 views / 1 likes - added

Thanks to littlebits.com for sponsoring this video – use promo code MinutePhysics for \$20 off A HUGE thanks to Wren Weichman (@wrenthereaper) for helping with the 3D bike animation, Michael Aranda for drone photography, Pavel for dowsing and Melissa

• 03:00

### The Scientific Power Of Meditation

574 views / 0 likes - added

How exactly does meditation affect your body? GET THE BOOK! http://asapscience.com/book SUBSCRIBE: http://bit.ly/10kWnZ7 Written by: Rachel Salt, Gregory Brown and Mitchell Moffit FOLLOW US--- Instagram and Twitter: @whalewatchmeplz and @mitchellmoffit Cl

• 03:26

### Elon Musk And Stephen Hawking Fear A Robot Apocalypse. But A Major Physicist Disagrees.

571 views / 0 likes - added

All new technology is frightening, says physicist Lawrence Krauss. But there are many more reasons to welcome machine consciousness than to fear it. Read more at BigThink.com: http://bigthink.com/videos/should-we-be-scared-of-ai Follow Big Think here: You

• 11:48

### Who Owns The Moon?

616 views / 0 likes - added

***NOTE*** This video was originally uploaded in 2013 but has been unavailable for more than a year! Basically, a channel I shouted-out in the first version asked to be removed. That's okay! Now, in a slightly re-edited version, the video is back! And spa

• 04:05

### (3/4) Analysis: Explaining Fourier Analysis With A Machine

477 views / 0 likes - added

► Learn more at: http://www.engineerguy.com/fourier ► Buy the book on Amazon: http://www.amazon.com/gp/product/0983966176/ ► Buy the posters on Zazzle: http://www.zazzle.com/engineerguy ► Main videos in the series: (1/4) Introduction: https://www.youtube.

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### (1/4) Intro/History: Introducing A 100-year-old Mechanical Computer

582 views / 1 likes - added

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• 10:34

### Light: Crash Course Astronomy #24

613 views / 0 likes - added

In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color. Spectroscopy allows us to analyze those colors and determine an object’s temperature, dens

• 05:42

### (2/4) Synthesis: A Machine That Uses Gears, Springs And Levers To Add Sines And Cosines

379 views / 0 likes - added

► Learn more at: http://www.engineerguy.com/fourier ► Buy the book on Amazon: http://www.amazon.com/gp/product/0983966176/ ► Buy the posters on Zazzle: http://www.zazzle.com/engineerguy ► Other videos in the series: (1/4) Introduction: https://www.youtube

• 05:31

### The Ebola Virus Explained — How Your Body Fights For Survival

582 views / 0 likes - added

What does the Ebola virus actually do in your body? Why is it so dangerous and why does it kill so many people? We take a look at the apocalyptic war that rages in the body after an infection by the Ebola virus and the soldiers fighting. Videos, explainin

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### The Counterintuitive Physics Of Turning A Bike

818 views / 2 likes - added

Thanks to http://www.harrys.com for sponsoring this video – use offer code MinutePhysics for \$5 off your first purchase A HUGE thanks to Michael Aranda for aerial and slow motion photography and Wren Weichman (@wrenthereaper) for helping with the 3D bike

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• 04:22

### Ratios, Rates, And Proportions — Harder Example | Math | New SAT | Khan Academy

438 views / 0 likes - added

Watch Sal work through a harder Ratios, rates, and proportions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q2-easier?utm_source=YT&utm_medium=Desc&utm_campaign

• 03:26

### Ringworlds

359 views / 0 likes - added

After spotting a mysterious star with two rings around it, scientists struggle to explain the anomaly. Could it be a "Ringworld" created by a highly superior race as suggested in a sci-fi novel? | For more, visit http://www.sciencechannel.com/tv-shows/are

• 03:46

### What Does Your Birthday Say About You? The Seasonal Birth Effect

467 views / 0 likes - added

Does the month you were born in determine whether you’re right handed, or a smoker, or short-sighted? No, we’re not talking astrology, but something called the seasonal birth effect. But can even that be trusted? Subscribe: http://bit.ly/RiSubscRibe The s

• 08:30

### A Brief History Of Everything, Feat. Neil DeGrasse Tyson

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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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• 59:45

### The Interactional 'Nudge' - Talking About Talk

289 views / 0 likes - added

Elizabeth Stokoe shows how conversation analysis works to provide a scientific understanding of talk, and how it can be harnessed to make people do what you want. Subscribe for regular science videos: http://bit.ly/RiSubscRibe Watch the Q&A here: https://

• 02:47

### This Is Your Brain On Extreme Weather

593 views / 2 likes - added

Thanks to http://www.audible.com/ for supporting this video. Download your free audiobook at https://www.audible.com/minuteearth Thanks also to our Patreon patrons: - @AntoineCoeur - salar tel - @TodayIFoundOut1 - @82abhilash - Emil Kampp and our Subbable

• 03:20

### Why Do We Eat Spoiled Food?

592 views / 1 likes - added

Sponsored by Tab for a Cause: http://www.tabforacause.org?r=3  MinuteEarth is also now on Patreon! Please support us at: http://www.patreon.com/minuteearth And subscribe! - http://www.youtube.com/user/minuteearth?sub_confirmation=1 Thanks to: - Subbable s

• 03:09

### Early Birds Vs Night Owls

474 views / 1 likes - added

Does the early bird really get the worm? Watch our Pop Music Experiment: http://youtu.be/h2rBzMaDQYM SUBSCRIBE! It's free: http://bit.ly/asapsci ---Links to follow us below--- Written by Amanda Edward (@mlle_capsaicin), Mitchell Moffit and Greg Brown Get

• 03:24

### How Much Sleep Do You Actually Need?

519 views / 2 likes - added

Are you over or under sleeping? Get Your Free Audiobook: http://bit.ly/XIcZpz WATCH 'How To Get Better Sleep' http://bit.ly/1l4c6k5 SUBSCRIBE: http://bit.ly/10kWnZ7 ---Links to follow us below!--- Instagram and Twitter: @whalewatchmeplz and @mitchellmoffi

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• 06:32 Popular

### Examples Analyzing Clusters, Gaps, Peaks And Outliers For Distributions

716 views / 0 likes - added

Examples analyzing clusters, gaps, peaks and outliers for distributions

• 04:50

### The Fundamentals Of Space-time: Part 2 - Andrew Pontzen And Tom Whyntie

365 views / 0 likes - added

View full lesson: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-2-andrew-pontzen-and-tom-whyntie View part 1 here: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-1-andrew-pontzen-and-tom-whyntie View part 3 here: http://ed.t

• 08:13

### Enzymes

342 views / 0 likes - added

Enzymes as catalysts for reactions in biological systems. Discussion of substrates, active sites, induced fit, activation energy and denaturation.

• 13:43 Popular

### Macroeconomics: Crash Course Economics #5

775 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

• 04:29

### The Great Aqua Adventure: Crash Course Kids #24.1

646 views / 3 likes - added

Water travels... a lot. In fact, the water cycle is amazing and takes water all over the planet by using evaporation, condensation, and precipitation. In this episode of Crash Course Kids, Sabrina shows us how the water cycle works and how you can create

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• 04:48

### Dinosaur Pee?: Crash Course Kids #24.2

584 views / 2 likes - added

Today we continue our exploration of the Water Cycle by drinking some dinosaur pee. Yep! Well, it's a little less gross that it sounds. It turns out that all of the water on Earth is just constantly recycled in what we call a closed system. No water comes

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### Spaced Out: Crash Course Kids #25.1

501 views / 2 likes - added

So... how big is the Universe? It's big... really big... no, bigger than that... it's big. In this episode of Crash Course Kids, Sabrina gives us some perspective on this whole Universe thing and how we fit into it. Watch More Crash Course Kids: https://w

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• 04:20

### Analyzing Two Variable Linear Inequality

485 views / 0 likes - added

Analyzing two variable linear inequality

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### Star Personalities: Crash Course Kids #25.2

518 views / 0 likes - added

Down here, on Earth, if you look up at the night sky, it seems like all the stars up there look the same. Or maybe at least similar. But, it turns out that stars are very different and we shouldn't stereotype them. Some are bigger, some burn through their

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• 06:01

### Examples Algebraically Analyzing Solutions To Systems

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• 03:35

### What Makes Gold So Valuable?

554 views / 1 likes - added

Gold is seen as a valuable metal world wide. Where did this idea originate and how much is it worth today? How Do You Know If Your Money Is Fake? ►►►► http://dne.ws/1LGfG2v Read More: Where Does All Earth's Gold Come From? http://www.sciencedaily.com/rele

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526 views / 0 likes - added

Most Americans learn how to read around the age of 5 but for some it can take much longer, why is it so hard to learn how to read? Why Did Nazis Burn Thousands Of Books? ►►►► http://dne.ws/1DNUOXp Read More: Brain Waves Show Learning to Read Does Not End

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508 views / 0 likes - added

While crime dramas often depict detectives tracking down criminals using hair DNA, that's not the only thing they can learn. What else can be revealed about you from a hair sample? Amazing Facts About Redheads: http://dne.ws/1gj3PMM Read More: Challenges

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• 04:10

### Can This Wearable Tech Make You A Power Plant?

521 views / 0 likes - added

The human body is full of kinetic energy, potential energy, heat, and electricity. Can we use these resources for energy? Does Water Ever Expire?: http://dne.ws/1KOKEI8 Read More: Flexible electronics harvest energy from natural motions of human body http

• 04:06

### Where Did The First Americans Come From?

464 views / 0 likes - added

At some point, humans made their way to America. When did this happen, and how can we confirm the date? Watch More ►► How Did We Get Here?: http://dne.ws/1SN4rqA Read More: Evolution of Modern Humans http://anthro.palomar.edu/homo2/mod_homo_4.htm “All peo

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• 04:18

### Should We Mine This Asteroid For Platinum?

381 views / 0 likes - added

This week an asteroid passed by Earth worth an estimated 5 trillion dollars in platinum. Is it possible to mine precious metals in space? Read More: Watch Live As A Platinum Asteroid Worth Trillions of Dollars Flies Past Earth http://www.iflscience.com/sp

• 05:19

### Paralyzed Man Walks Again -- Mind Blow #98

632 views / 0 likes - added

Mind Blow features the latest news in science, technology and amazing! **** SOURCES AND LINKS *** Brazilian Wasp Venom Kills Cancer Cells (0:00) http://phys.org/news/2015-09-brazilian-wasp-venom-cancer-cells.html Hedgehog Comet-Exploring Robot (0:06) http

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### Are These Butterflies The Same?

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### How To Build A Better City

393 views / 0 likes - added

Tab for a Cause: http://www.tabforacause.org/?r=12 Subscribe to MinuteEarth! - http://www.youtube.com/user/minuteearth?sub_confirmation=1 And support us on Subbable! - https://subbable.com/minuteearth Thanks to our Subbable supporter Brenda Fleischman! -

• 02:49

### How Do Trees Survive Winter?

493 views / 0 likes - added

This video sponsored by our Subbable supporter NIL: http://www.youtube.com/TheNilFacts And thanks to Subbable supporter Raed Massoud for helping make MinuteEarth possible! You can support MinuteEarth on Subbable too! - https://subbable.com/minuteearth Hum

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• 02:08

### What Is Skin For?

463 views / 0 likes - added

Please help MinuteEarth continue by supporting us on Subbable! - http://subbable.com/minuteearth REFERENCES Skin cell loss by weight Agache, P. & Humbert, P. 2004. "Measuring the Skin." http://dft.ba/-74An Aly, R. et al. 1978. Effect of Prolonged Occlusio

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505 views / 0 likes - added

View full lesson: http://ed.ted.com/lessons/how-art-can-help-you-analyze-amy-e-herman Can art save lives? Not exactly, but our most prized professionals (doctors, nurses, police officers) can learn real world skills through art analysis. Studying art like

• 04:10

### Bird Migration, A Perilous Journey - Alyssa Klavans

409 views / 0 likes - added

View full lesson: http://ed.ted.com/lessons/bird-migration-a-perilous-journey-alyssa-klavans Nearly 200 species of songbirds migrate south for winter, some traveling up to 7,000 miles. No easy task, the annual journey is dangerous to birds due to landscap

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### All About Volcanoes: How They Form, Eruptions & More!

937 views / 3 likes - added

This week, Jessi and Squeaks explore nature’s way of letting off a little steam. Discover the exciting world of volcanoes! ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids?

• 10:36

### Star Clusters: Crash Course Astronomy #35

342 views / 0 likes - added

Last week we covered multiple star systems, but what if we added thousands or even millions of stars to the mix? A star cluster. There are different kinds of clusters, though. Open clusters contain hundreds or thousands of stars held together by gravity.

• 03:52 Popular

### How Human Teeth Evolved From Ancient Fish

1,030 views / 5 likes - added

Scientists have found that tooth enamel may have evolved from ancient fish scales and bones! How did that happen? Disturbing Places Teeth Can Grow ►►►► http://dne.ws/1N4j5Jd DNews Live Tickets Here ►►►► http://dne.ws/1Fa2OCh Read More: How the enamel that

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• 01:46

424 views / 0 likes - added

When going to the movies, is the price you pay proportional to the number of tickets you buy? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-re

• 02:39

### Proportionality Between Side Length And Perimeter | 7th Grade | Khan Academy

470 views / 0 likes - added

Is the perimeter of a square proportional to the side length of the square? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-rel/e/analyzing-and-

• 03:46

### Testing Whether Area Is Proportional To Side Length | 7th Grade | Khan Academy

480 views / 0 likes - added

Is the volume of a square proportional to the side length of the square? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-rel/e/analyzing-and-ide

• 08:36

### How Science Is Hacking The Ultimate Athletes

345 views / 0 likes - added

Through motion tracking, data driven exercise, and eventually DNA analysis, SI and WIRED explore how scientific advances in training may help create the perfect NFL athlete. Still haven’t subscribed to WIRED on YouTube? ►► http://wrd.cm/15fP7B7 CONNECT WI

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### Poop Transplants!

733 views / 0 likes - added

Love MinuteEarth? We'd love your support! Subscribe on Subbable - https://subbable.com/minuteearth Thanks to our Subbable supporters who make MinuteEarth possible! Patrick Karkabi @Xefir_Destiny Sidhartha_T - https://twitter.com/Sidhartha_T and Dave Piel,

• 12:15

### The Greatest Machine That Never Was - John Graham-Cumming

390 views / 0 likes - added

Computer science began in the '30s ... the 1830s. John Graham-Cumming tells the story of Charles Babbage's mechanical, steam-powered "analytical engine" and how Ada Lovelace, mathematician and daughter of Lord Byron, saw beyond its simple computational ab

• 03:39 Popular

### How Do You Decide Where To Go In A Zombie Apocalypse? - David Hunter

792 views / 3 likes - added

View full lesson: http://ed.ted.com/lessons/how-do-you-decide-where-to-go-in-a-zombie-apocalypse-david-hunter Can geography save your life in case of, say, a zombie apocalypse? Understanding the push and pull factors that create geographic movement -- or

• 16:35

### Visualizing The Medical Data Explosion - Anders Ynnerman

426 views / 0 likes - added

Today medical scans produce thousands of images and terabytes of data for a single patient in mere seconds, but how do doctors parse this information and determine what's useful? In this talk, scientific visualization expert Anders Ynnerman shows us sophi

• 03:13

### Why Do Bats Transmit So Many Diseases Like Ebola?

547 views / 1 likes - added

Subscribe to MinuteEarth! - http://www.youtube.com/user/minuteearth?sub_confirmation=1 And please support us on Subbable! - https://subbable.com/minuteearth ________________________ Video Concept and Writing: Kate Yandell Created by Henry Reich Production

• 04:39

### NOVA | Zombies and Calculus (Part 1) | PBS

645 views / 2 likes - added

The zombie apocalypse is here, and calculus explains why we can't quite finish them off. NOVA Facebook: https://www.facebook.com/NOVAonline NOVA Twitter: https://www.twitter.com/novapbs PRODUCTION CREDITS Produced by Ari Daniel www.aridanielshapiro.com Fo

• 12:09

### The Math Behind Basketball's Wildest Moves | Rajiv Maheswaran | TED Talks

616 views / 0 likes - added

Basketball is a fast-moving game of improvisation, contact and, ahem, spatio-temporal pattern recognition. Rajiv Maheswaran and his colleagues are analyzing the movements behind the key plays of the game, to help coaches and players combine intuition with

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• 01:11

### A 3D Printer For The Zombie Apocalypse: Brains, Veins And Hearts.

687 views / 0 likes - added

3D printers can replicate hard, bony body parts for use as implants in personalized medicine. But printing soft, flexible, and functional biological materials that can support their own weight during the printing process has remained a challenge. Now, Car

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• 04:24 Popular

826 views / 2 likes - added

• 03:46

### NASA | Looking For The Shadows Of New Worlds

392 views / 0 likes - added

Astronomers have used many different methods to discover planets beyond the solar system, but the most successful by far is transit photometry, which measures changes in a star's brightness caused by a mini-eclipse. When a planet crosses in front of its s

• 01:41

### NASA | Brazil’s Extreme Drought Seen From Space

552 views / 1 likes - added

For more information: http://www.nasa.gov/feature/goddard/nasas-grace-satellites-evaluate-drought-in-southeast-brazil Empty water reservoirs, severe water rationing, and electrical blackouts are the new status quo in major cities across southeastern Brazi

• 03:36

### Mind-Controlled Machines Give Paralyzed Patients New Hope | Cyborg Nation

583 views / 1 likes - added

Brazilian scientist Dr. Miguel Nicolelis is leading the frontier on mind-controlled exoskeletons that can translate thoughts into physical movement. Go inside his lab and find out how he’s helping paraplegics control aid-enabling devices just by thinking.

• 02:57

### Banana Proportionality | Rated And Proportional Relationships | 7th Grade | Khan Academy

498 views / 0 likes - added

• 08:13

### Points After Rotation | Transformations | Geometry | Khan Academy

499 views / 1 likes - added

Points after rotation Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/rotations-1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://w

• 10:32

### Rotating About Arbitrary Point | Transformations | Geometry | Khan Academy

508 views / 0 likes - added

Rotating about arbitrary point Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/rotations-2?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson:

• 02:28

### Drawing Line Of Reflection | Transformations | Geometry | Khan Academy

538 views / 0 likes - added

Drawing line of reflection Watch the next lesson: https://www.khanacademy.org/math/geometry/transformations/hs-geo-reflections/v/determining-the-line-of-reflection?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Missed the previous lesson? https://www

• 07:19

### Reflecting Segments Over Line | Transformations | Geometry | Khan Academy

519 views / 0 likes - added

Reflecting segments over line Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-reflections/e/reflections-1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesso

• 05:41

### Points On Line Of Reflection | Transformations | Geometry | Khan Academy

521 views / 0 likes - added

Points on line of reflection Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-reflections/e/defining-reflections?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next

• 02:46

### Defining Rotation Example | Transformations | Geometry | Khan Academy

557 views / 0 likes - added

Defining rotation example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/defining-rotations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson

• 01:55

### Drawing Image Of Translation | Transformations | Geometry | Khan Academy

544 views / 0 likes - added

• 01:32

### Formal Translation Tool Example | Transformations | Geometry | Khan Academy

562 views / 0 likes - added

Formal translation tool example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-translations/e/defining-translations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the

• 01:48

### Using Reflection Tool | Transformations | Geometry | Khan Academy

616 views / 0 likes - added

Using reflection tool Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-reflections-on-the-coordinate-plane?utm_source=YT&utm_medium=Desc&utm_camp

• 01:25

### Using Rotation Widget | Transformations | Geometry | Khan Academy

513 views / 0 likes - added

Using rotation widget Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-rotations-on-the-coordinate-plane?utm_source=YT&utm_medium=Desc&utm_campai

• 01:37

### Translation Example | Transformations | Geometry | Khan Academy

552 views / 0 likes - added

• 07:23

### Introduction To Transformations | Transformations | Geometry | Khan Academy

485 views / 0 likes - added

Introduction to transformations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-translations-on-the-coordinate-plane?utm_source=YT&utm_medium=De

• 03:59

### Volume Word Problems — Basic Example | Math | New SAT | Khan Academy

471 views / 0 likes - added

Watch Sal work through a basic Volume word problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s1-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previous

• 07:22

### Data Collection And Conclusions — Harder Example | Math | New SAT | Khan Academy

434 views / 0 likes - added

Watch Sal work through a harder Data collections and conclusions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s1-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewS

• 04:00 Popular

### Data Collection And Conclusions — Basic Example | Math | New SAT | Khan Academy

718 views / 0 likes - added

Watch Sal work through a basic Data collections and conclusions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q10-harder?utm_source=YT&utm_medium=Desc&utm_campai

• 02:16

### Center, Spread, And Shape Of Distributions — Harder Example | Math | New SAT | Khan Academy

504 views / 0 likes - added

Watch Sal work through a harder Center, spread, and shape of distributions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q10-easier?utm_source=YT&utm_medium=Desc

• 04:28

### Data Inferences — Harder Example | Math | New SAT | Khan Academy

457 views / 1 likes - added

Watch Sal work through a harder Data inferences problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q9-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed

• 03:32

### Data Inferences — Basic Example | Math | New SAT | Khan Academy

505 views / 0 likes - added

Watch Sal work through a basic Data inferences problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q8-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed t

• 02:01

### Table Data — Harder Example | Math | New SAT | Khan Academy

516 views / 0 likes - added

Watch Sal work through a harder Table data problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q4-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the p

• 01:22

### Table Data — Basic Example | Math | New SAT | Khan Academy

445 views / 0 likes - added

Watch Sal work through a basic Table data problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q7-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pr

• 05:18

### Linear And Exponential Growth — Harder Example | Math | New SAT | Khan Academy

590 views / 0 likes - added

Watch Sal work through a harder Linear and exponential growth problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q8-easier?utm_source=YT&utm_medium=Desc&utm_campaign=

• 02:28

### Linear And Exponential Growth — Basic Example | Math | New SAT | Khan Academy

511 views / 0 likes - added

Watch Sal work through a basic Linear and exponential growth problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q6-harder?utm_source=YT&utm_medium=Desc&utm_campaign=N

• 03:27

### Key Features Of Graphs — Harder Example | Math | New SAT | Khan Academy

395 views / 0 likes - added

Watch Sal work through a harder Key features of graphs problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q6-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT

• 03:22

### Key Features Of Graphs — Basic Example | Math | New SAT | Khan Academy

486 views / 0 likes - added

Watch Sal work through a basic Key features of graphs problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q5-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT M

• 03:37

### Scatterplots — Harder Example | Math | New SAT | Khan Academy

393 views / 0 likes - added

Watch Sal work through a harder Scatterplots problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q5-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the

• 04:34

### Scatterplots — Basic Example | Math | New SAT | Khan Academy

506 views / 0 likes - added

Watch Sal work through a basic Scatterplots problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q4-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the

• 05:03

### Units — Harder Example | Math | New SAT | Khan Academy

435 views / 0 likes - added

Watch Sal work through a harder Units problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q7-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previo

• 03:00

### Units — Basic Example | Math | New SAT | Khan Academy

486 views / 0 likes - added

Watch Sal work through a basic Units problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q3-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previou

• 01:45

### Percents — Harder Example | Math | New SAT | Khan Academy

411 views / 0 likes - added

Watch Sal work through a harder Percents problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q3-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pre

• 03:14

### Percents — Basic Example | Math | New SAT | Khan Academy

450 views / 0 likes - added

Watch Sal work through a basic Percents problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q2-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the prev

• 02:11

### Ratios, Rates, And Proportions — Basic Example | Math | New SAT | Khan Academy

548 views / 0 likes - added

Watch Sal work through a basic Ratios, rates, and proportions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q1-harder?utm_source=YT&utm_medium=Desc&utm_campaign=

• 02:38

### Function Notation — Harder Example | Math | New SAT | Khan Academy

483 views / 0 likes - added

Watch Sal work through a harder Function notation problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q1-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Misse

• 03:09 Popular

### Why Can't You Tickle Yourself?

853 views / 0 likes - added

It’s almost impossible to trick your brain so you can tickle yourself. Unless you're schizophrenic… Learn more at HowStuffWorks.com: http://science.howstuffworks.com/life/inside-the-mind/human-brain/question511.htm Share on Facebook: https://goo.gl/d4QPR7

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• 04:19

### Did The Brontosaurus Exist?

579 views / 3 likes - added

The Brontosaurus technically hasn't existed in the living/breathing sense of the word for 150 million years. But did it ever exist? Was this iconic dinosaur the result of misclassification? Learn about the Bone Wars with Stuff You Missed In History Class:

• 14:56 Popular

### Minecraft | THE TROLL BUTTON!! | Come Find Me Custom Map

3,693 views / 42 likes - added

Minecraft | THE TROLL BUTTON!! | Come Find Me Custom Map ► Subscribe and join TeamTDM! :: http://bit.ly/TxtGm8 ► Previous video :: https://youtu.be/I3_kZBHqGts ► Follow Me on Twitter :: http://www.twitter.com/DiamondMinecart Today, we're playing another M

• 04:35

### Why You Shouldn’t Eat Too Fast

389 views / 0 likes - added

A recent study shows that people who eat too fast are missing a big part of eating a good meal. Can You Survive Without Food and Water ►►►► http://dne.ws/1OcrNHS Sign Up For The TestTube Newsletter Here ►►►► http://dne.ws/1McUJdm Get 15% off http://www.do

• 03:48 Popular

### Will This Hypnotize You?

1,026 views / 4 likes - added

Is hypnosis real? Here's the science! Watch us get hypnotized: https://youtu.be/LtElP2x5hCM SUBSCRIBE: http://bit.ly/asapsci Written by Rachel Salt, Gregory Brown and Mitchell Moffit GET THE ASAPSCIENCE BOOK: http://asapscience.com/book/ FOLLOW US! Instag

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• 03:25 Popular

### Did Earth Always Have Water?

705 views / 1 likes - added

In the developing days of planet Earth, the environment was not ideal for creating water. How did Earth’s water get here? There’s Water On Mars Here’s Everything You Need To Know ►►►► http://dne.ws/1MVmzQf Sign Up For The TestTube Newsletter Here ►►►► htt

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• 04:53

### Will Solar Storms Cause The Apocalypse?

509 views / 0 likes - added

Electromagnetic energy from solar winds could cause a massive geomagnetic storm once it hits Earth. Could the Sun destroy Earth? Amazing 4K Footage of Our Sun Explained ►►►► http://dne.ws/1SJqG23 Sign Up For The TestTube Newsletter Here ►►►► http://dne.ws

• 03:31

### How Does Colorblindness Work?

391 views / 0 likes - added

We see color thanks to complex coordination of signals from the eyes to the brain. Here's what happens when the signal gets scrambled. Learn more at HowStuffWorks.com: http://health.howstuffworks.com/human-body/systems/eye/colorblindness.htm Share on Face

• 09:44

### Analyzing A Resistor Circuit With Two Batteries

344 views / 0 likes - added

Analyzing a resistor circuit with two batteries | Circuits | Physics | Khan Academy

• 11:34

### Marginal Analysis, Roller Coasters, Elasticity, And Van Gogh: Crash Course Econ #18

486 views / 0 likes - added

This week Jacob and Adriene teach you about marginal analysis, which you're using RIGHT NOW! The video is coming from inside the house! Or something. You'll learn how marginal analysis guides the decision making if cities, nations, companies, and amusemen

• 02:27

### X-Men: Apocalypse Official Trailer #1 (2016) - Jennifer Lawrence, Michael Fassbender Action HD

595 views / 1 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 X-Men: Apocalypse Official Trailer #1 (2016) - Jennifer Lawrence, Michael Fassb

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