Everything you should know about TRAPPIST-1 exoplanets

 

By: Physics Girl

Originally published on Mar 1, 2017

The TRAPPIST-1 exoplanet system has seven earth-like planets and is only 39 lightyears away! I am joined by Professor Adam Burgasser and Dr. Katherine Deck, both astrophysicists on the Nature paper to discuss the discovery of this planetary system.

Check out this TRAPPIST video by PBS SpaceTime! https://www.youtube.com/watch?v=h871o…

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Creator: Dianna Cowern
Editor, Videographer, Host, Head Nerd, Puller-of-all-Nighter-to-Finish-Video: Dianna Cowern

Visuals: ESO/NASA
Ocean Visual: Pixabay
Music: APM/YouTube

Sources: https://www.jpl.nasa.gov/spaceimages/…
http://www.nature.com/nature/journal/…
http://www.nature.com/news/these-seve…

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How to control light with water

 

By: Physics Girl

Originally published on Dec 22, 2016

How fast is the internet? How fast can we send data? This easy DIY experiment allows you to control light with water! Drill a hole in the bottom of a 2 liter bottle, fill the bottle with water allowing the water to stream out the hole, and a shine a laser on the other side so it comes out the hole and follows the stream of water! Just like fiber optics, the laser beam gets bounced around, but stays within the stream. Controlling light in this way gives up the ability to send information MUCH faster, as opposed to sending a postcard via snail mail!

Infinite Series:
https://www.youtube.com/channel/UCs4a…

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Creator/Writer: Dianna Cowern
Animator: Kyle Norby
Writer/Researcher: Sophia Chen
Editor: Jabril Ashe

Fun new Fiber Optics video from Nat and Lo on Fiber Optics called, “Journey to the Bottom of the Internet”
https://www.youtube.com/watch?v=H9R4t…
Also found this great video by engineer guy who set up the experiment much better than we did:
https://www.youtube.com/watch?v=0MwMk…

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Map of underwater cables and landing sites:
TeleGeography
http://www.submarinecablemap.com

Stock Images: pixabay.com and clker.com

Music: APM and YouTube.

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Why Do We Love Sugar?

 

By: BrainCraft

Originally published on Nov 12, 2015

My Twitter https://twitter.com/nessyhill | Instagram https://instagram.com/nessyhill

Subscribe to BrainCraft! http://ow.ly/rt5IE

Can You be Addicted to Sugar: https://youtu.be/1aLCwDT-X6c
Are Some Sweeteners Better Than Others? https://youtu.be/6hXg_y4z3VM

BrainCraft is created and hosted by Vanessa Hill and brought to you by PBS Digital Studios. Talking psychology, neuroscience & why we act the way we do.
Sound design: Joel Werner (http://joelwerner.com)
Producer: Ella Colley

Keep in touch, won’t you?
Snapchat: nessyhill
Twitter https://twitter.com/nessyhill
Instagram https://instagram.com/nessyhill
Tumblr http://braincraft.tumblr.com
Facebook https://www.facebook.com/Braincraft

More BrainCraft!
How Old Are You, Really? https://youtu.be/aWvw-v6tnZE
The Surprising Ways Death Shapes Our Lives: https://youtu.be/Joalg73L_gw

REFERENCES

Steiner, J.E. Facial Expressions of the Neonate Infant Indication the Hedonics of Food Related Chemical Stimuli in Weiffenbach, J. M. (Ed.). (1977). Taste and development: The genesis of sweet preference. US Department of Health, Education, and Welfare, Public Health Service, National Institutes of Health. http://babel.hathitrust.org/cgi/pt?id…

Avena, N. M., Gold, J. A., Kroll, C., & Gold, M. S. (2012). Further developments in the neurobiology of food and addiction: update on the state of the science.Nutrition, 28(4), 341-343. https://dl.dropboxusercontent.com/u/3…

Lustig, R. H., Schmidt, L. A., & Brindis, C. D. (2012). Public health: The toxic truth about sugar. Nature, 482(7383), 27-29. http://www.nature.com/nature/journal/…

A history of sugar – the food nobody needs, but everyone craves https://theconversation.com/a-history…

Bello, N. T., Lucas, L. R., & Hajnal, A. (2002). Repeated sucrose access influences dopamine D2 receptor density in the striatum. Neuroreport, 13(12), 1575. http://www.ncbi.nlm.nih.gov/pmc/artic…

Preedy, V. R., Watson, R. R., & Martin, C. R. (2011). Handbook of behavior, food and nutrition. Springer Science & Business Media. https://books.google.com/books?id=KuA…

Also this is SO INTERESTING: Bes-Rastrollo, M., Schulze, M. B., Ruiz-Canela, M., & Martinez-Gonzalez, M. A. (2013). Financial conflicts of interest and reporting bias regarding the association between sugar-sweetened beverages and weight gain: a systematic review of systematic reviews. http://journals.plos.org/plosmedicine…

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Exploding soda cans with electromagnets in SLOW MOTION ft Joe Hanson

 

By: Physics Girl

Originally published on Jun 14, 2016

Making Music with a Tesla Coil: https://youtu.be/KGhNgeg9IAw

Watch a soda can rip itself apart in a fiery explosion at 11,000fps with a Phantom high speed camera. Running a current through a coil, produces an electromagnet. Turn up the voltage in this experiment, and make that current strong enough, and your electromagnet can rip a soda can in half. Or rather, make the can rip itself in half! This video was filmed at Arc Attack Studios in Austin, TX with Joe Hanson, Joe DiPrima, John DiPrima and Darren Dyk.

This video is sponsored by Audible – http://audible.com/physicsgirl

360 Tesla Coil Video:
https://youtu.be/2SNcbNlbyVo
It’s Okay to Be Smart Channel:
https://www.youtube.com/itsokaytobesmart

ArcAttack:
https://www.facebook.com/arc.attack/

Beyond Slow Motion:
https://www.youtube.com/user/BeyondSl…

Use Induction to make your own DIY Electric Train:
https://www.youtube.com/watch?v=9k7zy…

Help us translate our videos! http://www.youtube.com/timedtext_cs_p…

Creator: Dianna Cowern
Editor: Jabril Ashe
Animator: Kyle Norby

How the quarter shrinking demo works:
A coil of wire is wrapped around the quarter so it follows the edge of the quarter. Then a capacitor – kind of like a battery – is charged until it’s at a VERY high-voltage, which is then discharged through the wire. The current produced is high enough to make you go bye bye. The coil becomes an electromagnet – because current —≥ magnetic field But this magnetic field creates another current or set of currents in the quarter – because changing magnetic field —≥ current in a circuit. But moving charges, i.e. currents, in a magnetic field will feel a force. For the quarter, the charges moving in the edge are feeling a force inward. The current was SO strong that the quarter PULLED ITSELF inward! This is madness.

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Music: APM and YouTube
“On the Bach”
“Built Together Marimba“
“The Bumbling Professor“
“Built Together Soundscape“

Provided by ArcAttack:
“1812 Overture”

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The Donald Trump Caterpillar and Nature’s Masters of Disguise

 

By: It’s Okay To Be Smart

Originally published on Oct 3, 2016

They have some of the best caterpillars in Peru. The best.
Follow all of our Peru adventures on this playlist: http://bit.ly/SmartPeru
↓ More info and sources below ↓

Special thanks to Andy Warren, David Pfennig, Alex Wild, and Gustavo Londoño for helpful discussions for this video!

You should definitely be following Aaron Pomerantz:
http://www.thenextgenscientist.com/
Twitter: @AaronPomerantz
IG: @nextgenscientist

Special thanks to Rainforest Expeditions for hosting us! Visit http://www.perunature.com/

Check out Deep Look for more awesome up-close science: https://www.youtube.com/user/KQEDDeep…

Cinerous mourner nest video courtesy of Dano Grayson: http://danograyson.com/
Cinerous mourner photos by Santiago David

References:
d’Horta, Fernando Mendonça, Guy M. Kirwan, and Dante Buzzetti. “Gaudy juvenile plumages of cinereous mourner (Laniocera hypopyrra) and Brazilian laniisoma (Laniisoma elegans).” The Wilson Journal of Ornithology 124.3 (2012): 429-435.

Forbes, Peter. Dazzled and deceived: mimicry and camouflage. Yale University Press, 2011. http://amzn.to/2dE444Z

Kikuchi, David W., and David W. Pfennig. “Predator cognition permits imperfect coral snake mimicry.” The American Naturalist 176.6 (2010): 830-834.

Londoño, Gustavo A., Duván A. García, and Manuel A. Sánchez Martínez. “Morphological and behavioral evidence of Batesian mimicry in nestlings of a lowland Amazonian bird.” The American Naturalist 185.1 (2015): 135-141.

Rabosky, Alison R. Davis, et al. “Coral snakes predict the evolution of mimicry across New World snakes.” Nature communications 7 (2016).

Savage, Jay M., and Joseph B. Slowinski. “The colouration of the venomous coral snakes (family Elapidae) and their mimics (families Aniliidae and Colubridae).” Biological Journal of the Linnean Society 45.3 (1992): 235-254.

Thompson, Martin J., and Martijn JTN Timmermans. “Characterising the phenotypic diversity of Papilio dardanus wing patterns using an extensive museum collection.” Plos one 9.5 (2014): e96815.

Wickler, Wolfgang. Mimicry in Plants and Animals: Trans. by RD Martin. Weidenfeld & Nicolson, 1968.

—————-
It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
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Produced by PBS Digital Studios
Music via APM
Stock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com

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Physics Girl: 5 Science Tricks w/ Explanation

 

By: Physics Girl

Published on Sep 21, 2016

Go to http://Raceforretirement.com and see how the action gap affects you.
Last week I posed a video with 5 awesome physics party tricks. This week, Jabril from SEFD came on to help explain the experiments as we test them out for the first time and work through some of the amusing kinks in the process.

SEFD Science https://m.youtube.com/channel/UCQALLe…
My favorite video: https://m.youtube.com/watch?v=6cbf5vU…

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Any tricks with matches should be done with parental supervision.

Experiments and materials:

BALANCING FORKS
– two forks
– match
– glass

RISING WATER TRICK
– plate
– glass
– water
– match
– sticky tack

DANCING PEANUTS
– carbonated water
– tap water
– peanuts
– glass

PLATE SUCTION TRICK
– wine glass
– wet paper towel
– sticky tack
– match
– olive oil
– plate

BALLOON KEBAB
– balloon
– wooden stake

Subscribe to Physics Girl for more fun physics!
Creator: Dianna Cowern
Editor: Jabril Ashe
Animator: Kyle Norby
Research: Dan Walsh

http://physicsgirl.org/
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Music: APM

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World’s Easiest DIY Electric Train

 

By: Physics Girl

Originally published on Jun 7, 2016

How do you take copper wire, a battery and magnets and make electric train? With science! This super simple DIY physics demo uses electromagnetic induction to propel a train made of magnets and batteries.

Inspiring video: https://www.youtube.com/watch?v=J9b0J…
Ferrofluid and glowsticks: https://www.youtube.com/watch?v=RtBtD…
7 surface tension experiments: https://www.youtube.com/watch?v=WsksF…

Creator: Dianna Cowern
Animator: Kyle Norby

Thanks to Dan Walsh and Kyle Kitzmiller.

Music: APM and YouTube

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Could you replace your eye with a camera?

 

By: Physics Girl

Originally published on Apr 12, 2016

How does the eye compare to a camera? How do they work, and will camera technology ever get to the point where you would want to replace your eyeball with a camera?

Vote for PBS Digital Studios Webby! Voting ends April 21st, 2016 https://pv.webbyawards.com/2016/onlin…

http://physicsgirl.org/
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Creator: Dianna Cowern
Writer: Sophia Chen
Editor: Jabril Ashe
Animator: Kyle Norby

More resources:
Stock visuals: Pixabay.com
Music: APM and YouTube

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Theory vs. Hypothesis vs. Law… Explained!

 

By: It’s Okay To Be Smart

Originally published on Sep 21, 2015

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 just a THEORY!”

Yes, they are both theories. Stop saying it like it’s a bad thing! It’s time we learn the difference between a fact, a theory, a hypothesis, and a scientific law.

Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
Follow on Twitter: http://twitter.com/okaytobesmart
http://twitter.com/jtotheizzoe
Follow on Tumblr: http://www.itsokaytobesmart.com
Follow on Instagram: http://instagram.com/jtotheizzoe
Follow on Snapchat: YoDrJoe

—————–
It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
Follow me on Twitter: @jtotheizzoe
Email me: itsokaytobesmart AT gmail DOT com
Facebook: http://www.facebook.com/itsokaytobesmart
For more awesome science, check out: http://www.itsokaytobesmart.com
Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigita…

Joe Hanson – Creator/Host/Writer
Joe Nicolosi – Director
Amanda Fox – Producer, Spotzen Inc.
Kate Eads – Producer
Andrew Matthews – Editing/Motion Graphics/Animation
Katie Graham – Camera
John Knudsen – Gaffer

Theme music: “Ouroboros” by Kevin MacLeod

Other music via APM
Stock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)

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Does this look white to you?

 

By: Physics Girl

Originally published on Oct 6, 2015

When you mix red and green, what do you get? White light is all of the colors, right? So, how do computer screens show you every wavelength of light? Or do they?

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physicsgirl.org

Host/Writer: Dianna Cowern

Editor: sefdstuff.com/science

Physics Girl has joined PBS Digital Studios! https://www.youtube.com/user/pbsdigit…

RGB Image: Luís Flávio Loureiro dos Santos, https://commons.wikimedia.org/wiki/Fi…

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