Search Results: "tear gas"

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06:47 Popular
Noble Gas Configuration | Electronic Structure Of Atoms | Chemistry | Khan Academy

1,490 views / 0 likes - added 8 years ago

How to write electron configurations for atoms and monatomic ions using noble gas configuration Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity
03:25
NASA | Blazar Bonanza

683 views / 0 likes - added 8 years ago

A long time ago in a galaxy half the universe away, a flood of high-energy gamma rays began its journey to Earth. When they arrived in April, NASA's Fermi Gamma-ray Space Telescope caught the outburst, which helped two ground-based gamma-ray observatories
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03:05
Why Do Men Have Deeper Voices?

687 views / 1 likes - added 8 years ago

Cristen explains why male humans' voices generally get lower than female humans' during puberty. Learn more at HowStuffWorks.com: http://health.howstuffworks.com/sexual-health/male-reproductive-system/male-puberty2.htm Share on Facebook: https://goo.gl/Hg
12:00
Dark Matter: Crash Course Astronomy #41

624 views / 1 likes - added 8 years ago

Today on Crash Course Astronomy, Phil dives into some very dark matters. The stuff we can actually observe in the universe isn’t all there is. Galaxies and other large structures in the universe are created and shifted by a force we detect mostly indirect
05:00
Fighting Firedamp - The Lamp That Saved 1,000 Lives

699 views / 0 likes - added 8 years ago

With a beautiful, explosive experiment, Andy demonstrates how Humphry Davy's simple invention saved hundreds of lives from firedamp. Subscribe for regular science videos: http://bit.ly/RiSubscRibe Firedamp is a flammable gas found in coal mines that contr
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02:23 Popular
Why Does Gasoline Smell So Good?

948 views / 0 likes - added 8 years ago

Some people sense a sweet, euphoric odor when pumping gas into their car. Why is that? And is it hazardous? Learn more at HowStuffWorks.com: http://science.howstuffworks.com/gasoline.htm Share on Facebook: https://goo.gl/9BdfNI Share on Twitter: https://g
03:13
How Do Pneumatic Tubes Work?

662 views / 0 likes - added 8 years ago

The Internet has been called a series of tubes. But long before email, people sent messages across cities through networks of pneumatic tubes. Learn how they work! Learn more at HowStuffWorks.com: http://electronics.howstuffworks.com/everyday-tech/pneumat
03:32 Popular
What Would Space Do To The Human Body?

985 views / 1 likes - added 8 years ago

Space without a suit? You’ll probably die from the lack of pressure in a vacuum. But other extreme hazards won’t help either. Learn more at HowStuffWorks.com: http://science.howstuffworks.com/question540.htm Share on Facebook: https://goo.gl/CeaQIU Share
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01:59 Popular
Elmore Stream-It I The Amazing World Of Gumball I Cartoon Network

14.2k views / 69 likes - added 8 years ago

Gumball and Darwin try to tear themselves away from the internet, but end up falling down the Elmore Stream-hole. CN GAMES: http://bit.ly/CNGames SUBSCRIBE: http://bit.ly/109Y6wq WATCH MORE: http://bit.ly/CNGumball About The Amazing World of Gumball: Gumb
01:37 Popular
Calculator Game Review I The Amazing World Of Gumball I Cartoon Network

3,554 views / 21 likes - added 8 years ago

Gumball and Darwin try to tear themselves away from the internet, but end up falling down the Elmore Stream-hole. CN GAMES: http://bit.ly/CNGames SUBSCRIBE: http://bit.ly/109Y6wq WATCH MORE: http://bit.ly/CNGumball About The Amazing World of Gumball: Gumb
03:36 Popular
Why Can't People Remember Being Born?

749 views / 0 likes - added 8 years ago

You probably remember your 18th birthday, but not your first – or your zeroth. Why is that? Learn more at HowStuffWorks.com: http://science.howstuffworks.com/life/inside-the-mind/human-brain/remember-birth.htm Share on Facebook: https://goo.gl/hiKxeT Shar
04:16 Popular
How Fire Extinguishers Work

913 views / 1 likes - added 8 years ago

Fire extinguishers are nearly ubiquitous, and they can be an invaluable, life-saving device. But what’s inside those little red cylinders, and how does it stop a fire? Share on Facebook: https://goo.gl/hF7RFe Share on Twitter: https://goo.gl/qKWGmd Subscr
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04:04 Popular
What Would Happen If Global Warming Sped Up?

951 views / 4 likes - added 8 years ago

A two-degree increase in global temperature may seem insignificant, but it would likely cause a massive impact all over the Earth. What Happens If All The World’s Ice Melts? ►►►► http://dne.ws/1Stb0jj Sign Up For The TestTube Newsletter Here ►►►► http://d
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02:54 Popular
The NEW Periodic Table Song (Updated)

1,020 views / 1 likes - added 8 years ago

Download on ITUNES: http://bit.ly/12AeW99 Hey friends - we wanted to update a few things in our video to be more accurate and appropriate for everyone. And why not try and memorize this song all over again?! Thanks for all your support through the years,
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12:06
Galaxies, Part 1: Crash Course Astronomy #38

690 views / 0 likes - added 8 years ago

The Milky Way is our neighborhood in the universe. It’s a galaxy and there are many others out there. Galaxies contain gas, dust, and billions of stars or more. They come in four main shapes: elliptical, spiral, peculiar, and irregular. Galaxies can colli
11:14 Popular
The Milky Way: Crash Course Astronomy #37

792 views / 0 likes - added 8 years ago

Today we’re talking about our galactic neighborhood: The Milky Way. It’s a disk galaxy, a collection of dust, gas, and hundreds of billions of stars, with the Sun located about halfway out from the center. The disk has grand spiral patterns in it, formed
12:16
Nebulae: Crash Course Astronomy #36

603 views / 2 likes - added 8 years ago

Astronomers study a lot of gorgeous things, but nebulae might be the most breathtakingly beautiful of them all. Nebulae are clouds of gas and dust in space. They can glow on their own or reflect light from nearby stars. When they glow it’s usually predomi
04:11 Popular
Explore The Solar System: The Gas Giants

875 views / 2 likes - added 8 years ago

Explore the four gas giant planets, as Jessi and Squeaks take you on a tour of our solar system! ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome prod
10:33 Popular
Metabolism & Nutrition, Part 1: Crash Course A&P #36

1,108 views / 0 likes - added 8 years ago

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
03:06
Can This Carbon Nanomaterial Solve Global Warming?

558 views / 0 likes - added 8 years ago

Scientists have created a material using carbon from our atmosphere! Will this help solve global warming? Read some of Ian’s recent articles: http://news.discovery.com/contributors/ian-oneill.htm Watch More ►►►► http://dne.ws/1MOqVY8 Read More: Overview o
03:30 Popular
The Mystery Of The Milky Way's Missing Stars

707 views / 0 likes - added 8 years ago

Astrophysicists think there should be many more stars in the Milky Way due to the large amount of dust and gas surrounding the galaxy's perimeter. Something is holding this vast field of matter on the galaxy's doorstep, preventing it from being drawn towa
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11:10
White Dwarfs & Planetary Nebulae: Crash Course Astronomy #30

522 views / 0 likes - added 8 years ago

Today Phil follows up last week’s look at the death of low mass stars with what comes next: a white dwarf. White dwarfs are incredibly hot and dense objects roughly the size of Earth. They also can form planetary nebulae: huge, intricately detailed object
12:03 Popular
Low Mass Stars: Crash Course Astronomy #29

904 views / 0 likes - added 8 years ago

Today we are talking about the life -- and death -- of stars. Low mass stars live a long time, fusing all their hydrogen into helium over a trillion years. More massive stars like the Sun live shorter lives. They fuse hydrogen into helium, and eventually
07:24 Popular
The Networked Beauty Of Forests - Suzanne Simard

720 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-networked-beauty-of-forests-suzanne-simard Deforestation causes more greenhouse gas emissions than all trains, planes and automobiles combined. What can we do to change this contributor to global warming? Su
03:05
Should We All Be Eating Insects?

621 views / 1 likes - added 8 years ago

Could these creepy crawlers be the future of food? HOW TO EAT BUGS: http://bit.ly/1jLnYXe Subscribe! It's free: http://bit.ly/10kWnZ7 --- Follow us (Links Below) --- Instagram and Twitter: @whalewatchmeplz and @mitchellmoffit Clickable: http://bit.ly/16F1
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04:44 Popular
Science For Kids - How To Make Fizzy Bottle Rockets - ExpeRimental #16

945 views / 1 likes - added 8 years ago

Make a juice bottle rocket fly through the air with some fizzy tablets and water in this fun science experiment for children. Download the infosheet for more ideas and information: http://bit.ly/FBR_Infosheet2 Subscribe for regular science videos: http://
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03:52 Popular
Science For Kids - Jumping Candle Flame Experiment - ExpeRimental #13

769 views / 0 likes - added 8 years ago

Make a flame jump through the air in this fun science experiment to do at home with children. For info sheets and printable badges, click here: http://bit.ly/CandleChem ExpeRimental is a series of videos showing fun, cheap, simple science activities to do
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04:24 Popular
Science For Kids - How To Make Microwave Cupcakes - ExpeRimental #20

892 views / 1 likes - added 8 years ago

Make a cake in a microwave with our recipe, and do a science experiment for children. Download the infosheet for more instructions, ideas and the recipe: http://bit.ly/MicroCakes_IS Subscribe for regular science videos: http://bit.ly/RiSubscRibe Jo and he
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04:31 Popular
Science For Kids - How To Inflate A Balloon With A Chemical Reaction - #ExpeRimental 18

1,920 views / 0 likes - added 8 years ago

Try this fizzy cubes experiment with your children, then use the reaction to make a balloon blow itself up. Download the infosheet for more ideas and information: http://bit.ly/FizzyInfosheet Subscribe for regular science videos: http://bit.ly/RiSubscRibe
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03:52 Popular
Solid, Liquid, Gas And … Plasma? - Michael Murillo

1,668 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/solid-liquid-gas-and-plasma-michael-murillo Have you ever seen static electricity cause a spark of light? What is that spark? What about lightning, the Northern Lights, or the tail of a comet? All of those thing
02:49 Popular
Climate Change: Earth's Giant Game Of Tetris - Joss Fong

972 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/climate-change-earth-s-giant-game-of-tetris-joss-fong There's a game of Tetris happening on a global scale: The playing space is planet Earth, and all those pesky, stacking blocks represent carbon dioxide -- a g
05:04 Popular
Fracking Explained: Opportunity Or Danger

844 views / 1 likes - added 8 years ago

Fracking explained in five minutes. Fracking is a controversial topic. On the one side the gas drilling companies, on the other citizen opposed to this drilling method. Politicians are also divided on the matter. We try to take a neutral look on fracking.
03:15
Why Are There Clouds?

649 views / 0 likes - added 8 years ago

Thanks to the awesome science YouTube channel Animalogic for supporting this video. Check them out! https://www.youtube.com/channel/UCwg6_F2hDHYrqbNSGjmar4w?sub_confirmation=1 Thanks also to our Patreon patrons: - @AntoineCoeur - Jeff Straathof - Mark - f
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11:41 Popular
The Oort Cloud: Crash Course Astronomy #22

702 views / 0 likes - added 8 years ago

Now that we’re done with the planets, asteroid belt, and comets, we’re heading to the outskirts of the solar system. Out past Neptune are vast reservoirs of icy bodies that can become comets if they get poked into the inner solar system. The Kuiper Belt i
11:55 Popular
Comets: Crash Course Astronomy #21

745 views / 0 likes - added 8 years ago

Today on Crash Course Astronomy, Phil explains comets. Comets are chunks of ice and rock that orbit the Sun. When they get near the Sun the ice turns into gas, forming the long tail, and also releases dust that forms a different tail. We’ve visited comets
03:50 Popular
Part(icles) Of Your World: Crash Course Kids #3.2

4,755 views / 6 likes - added 9 years ago

Have you ever heard the phrase, "You look like a Million Bucks?" Well, you do... but you also look like a million particles. In this episode, Sabrina talks to us about matter and particles and that all matter is made up of particles. Also, she shows us ho
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03:31 Popular
What's Matter? - Crash Course Kids #3.1

3,114 views / 12 likes - added 9 years ago

Hey... what's matter? No no no, not what's THE matter. What's MATTER? In this episode of Crash Course Kids, Sabrina talks about what matter is and the three states of matter: Solid, Liquid, and Gas. She also does a quick experiment that you can do at home
12:16 Popular
Saturn: Crash Course Astronomy #18

1,060 views / 6 likes - added 9 years ago

Saturn is the crown jewel of the solar system, beautiful and fascinating. It is a gas giant, and has a broad set of rings made of ice particles. Moons create gaps in the rings via their gravity. Saturn has dozens of moons, including Titan, which is as big
06:43 Popular
LEAGUE OF LEGENDS GINGERBREAD WARD COOKIES - NERDY NUMMIES

852 views / 2 likes - added 9 years ago

Today I made League of Legends Gingerbread Ward cookies for the holidays! I really enjoy making nerdy themed goodies and decorating them. I'm not a pro, but I love baking as a hobby. Please let me know what kind of treat you would like me to make next. FO
07:30 Popular
How To Make Carbon Dioxide (The Old-Fashioned Way)

1,304 views / 0 likes - added 9 years ago

REDDIT DISCUSSION: http://redd.it/2hbyqk Before bottled gas was delivered, chemists would make their carbon dioxide with a Kipp's Apparatus. Dr Samantha Tang (with Neil, of course) dusted off the one stored on Professor Poliakoff's window sill. More chemi
05:17 Popular
Chlorine And War - Periodic Table Of Videos

745 views / 0 likes - added 9 years ago

A video to coincide with 100 years since Chlorine was first used as a weapon of war. Chlorine: https://youtu.be/BXCfBl4rmh0 Sarin Gas: https://youtu.be/jozozH09XSs More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebo
12:52
Chemical Weapons (Sarin Gas) - Periodic Table Of Videos

529 views / 0 likes - added 9 years ago

Discussing chemical weapons, including Sarin and Mustard Gas. Featuring professors Rob Stockman and Martyn Poliakoff from the University of Nottingham. Extra footage will be at: http://youtu.be/lay6VoWBQek More chemistry at http://www.periodicvideos.com/
06:40
Barking Dog (slow Motion) - Periodic Table Of Videos

667 views / 0 likes - added 9 years ago

Barking Dog reaction at 3000 frames per second. More about filming & editing this video: http://youtu.be/vfKUG11FKGE The Barking Dog is combustion of nirous oxide (laughing gas) and sulfur dioxide. This video features Martyn Poliakoff, Pete Licence and Da
02:46
Two Colour Chemiluminescent Clock Reaction - Periodic Table Of Videos

573 views / 0 likes - added 9 years ago

More details in full description. Dr Sam Tang adds hydrogen peroxide to pyrogallol, formaldehyde and luminol. Chemiluminescence is caused by molecules being formed with some of their electrons in a higher energy level and then losing that energy as light.
10:44 Popular
Jupiter: Crash Course Astronomy #16

1,299 views / 5 likes - added 9 years ago

Jupiter is the biggest planet in our solar system. The gas giant is NOT a failed star, but a really successful planet! It has a dynamic atmosphere with belts and zones, as well as an enormous red spot that’s actually a persistent hurricane. Jupiter is sti
08:56
Deflate Gate

535 views / 0 likes - added 9 years ago

The ideal gas law implying not necessarily foul play in deflate-gate
02:26 Popular
How Can This Chemical Be A Solid, Liquid, And Gas At The Same Time?

992 views / 1 likes - added 9 years ago

How can a substance be a solid, liquid, and gas all at the same time? See the process scientists describe as "The Triple Point." | For more Outrageous Acts of Science, visit http://science.discovery.com/tv-shows/outrageous-acts-of-science/#mkcpgn=ytsci1 C
04:52 Popular
Why Does The Earth Have Layers?

1,263 views / 3 likes - added 9 years ago

…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:
04:58
Why Do We Pass Gas? - Purna Kashyap

666 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-pass-gas-purna-kashyap Flatulence is a daily phenomenon. In fact, most human beings pass gas 10-20 times a day (yes, that includes you)....
11:45 Popular
Archdukes, Cynicism, and World War I: Crash Course World History #36

1,192 views / 1 likes - added 9 years ago

In which John Green teaches you about the war that was supposed to end all wars. Instead, it solved nothing and set the stage for the world to be back at war just a couple of decades later. As an added bonus, World War I changed the way people look at the
11:26 Popular
Passing Gases: Effusion, Diffusion and the Velocity of a Gas - Crash Course Chemistry #16

1,294 views / 0 likes - added 9 years ago

We have learned over the past few weeks that gases have real-life constraints on how they move here in the non-ideal world. As with most things in chemistry (and also in life) how a gas moves is more complex than it at first appears. In this episode, Hank
11:55 Popular
Partial Pressures&Vapor Pressure: Crash Course Chemistry #15

728 views / 0 likes - added 9 years ago

This week we continue to spend quality time with gases, more deeply investigating some principles regarding pressure - including John Dalton's Law of Partial Pressures, vapor pressure - and demonstrating the method for collecting gas over water. Table of
11:35
Real Gases: Crash Course Chemistry #14

577 views / 0 likes - added 9 years ago

Hank bursts our ideal gas law bubble, er, balloon, and brings us back to reality, explaining how the constants in the gas law aren't all that constant; how the ideal gas law we've spent the past two weeks with has to be corrected for volume because atoms
11:45 Popular
Ideal Gas Problems: Crash Course Chemistry #13

936 views / 0 likes - added 9 years ago

We don't live in a perfect world, and neither do gases - it would be great if their particles always fulfilled the assumptions of the ideal gas law, and we could use PV=nRT to get the right answer every time. Unfortunately, the ideal gas law (like our cul
09:03 Popular
The Ideal Gas Law: Crash Course Chemistry #12

1,164 views / 0 likes - added 9 years ago

Gases are everywhere, and this is good news and bad news for chemists. The good news: when they are behaving themselves, it's extremely easy to describe their behavior theoretically, experimentally and mathematically. The bad news is they almost never beh
10:17 Popular
Introduction to the Solar System: Crash Course Astronomy #9

989 views / 1 likes - added 9 years ago

In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today. This episode is sponsored by Squaresp
10:14
Thermodynamics (part 4)

466 views / 0 likes - added 9 years ago

Introduction to the concept of a mole. Universal gas constant R. PV=nRT More free lessons at: http://www.khanacademy.org/video?v=5B1i26dUwME
10:25
Thermodynamics (part 3)

414 views / 0 likes - added 9 years ago

Introduction to Kelvin. Example of a problem involving the ideal gas law More free lessons at: http://www.khanacademy.org/video?v=HvYUKRMT0VI
16:02
Vapor Pressure Example

508 views / 0 likes - added 9 years ago

Vapor pressure example using the Ideal Gas Law More free lessons at: http://www.khanacademy.org/video?v=-QpkmwIoMaY
16:56 Popular
Proof: U=(3/2)PV or U=(3/2)nRT

800 views / 0 likes - added 9 years ago

Conceptual proof that the internal energy of an ideal gas system is 3/2 PV. More free lessons at: http://www.khanacademy.org/video?v=qSFY7GKhSRs
13:22 Popular
Solubility

872 views / 0 likes - added 9 years ago

Solubility of salt and gas solutes in liquid solvent. More free lessons at: http://www.khanacademy.org/video?v=zjIVJh4JLNo
05:04
Ideal Gas Example 4

511 views / 0 likes - added 9 years ago

Figuring out the molar mass of a mystery molecule at STP. More free lessons at: http://www.khanacademy.org/video?v=Osl6HEDZZ-E
05:46
Ideal Gas Equation Example 3

469 views / 0 likes - added 9 years ago

Figuring out the mass of Oxygen we have. More free lessons at: http://www.khanacademy.org/video?v=69V-60sga3M
13:01
Ideal Gas Equation Example 2

511 views / 0 likes - added 9 years ago

PV/T is a constant. Figuring out the volume of an ideal gas at standard temperature and pressure (STP). More free lessons at: http://www.khanacademy.org/video?v=GwoX_BemwHs
10:08
Ideal Gas Equation Example 1

514 views / 0 likes - added 9 years ago

Figuring out the number of moles of gas we have using the ideal gas equation: PV=nRT. More free lessons at: http://www.khanacademy.org/video?v=erjMiErRgSQ
09:22
Ideal Gas Equation: PV=nRT

538 views / 0 likes - added 9 years ago

Intuition behind the ideal gas equation: PV=nRT. More free lessons at: http://www.khanacademy.org/video?v=WScwPIPqZa0
12:24
Breakdown of Gas Prices

490 views / 0 likes - added 9 years ago

Where the dollars at the pump go More free lessons at: http://www.khanacademy.org/video?v=1YYy0DEOpoU

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