The Real Reason Peppers are Spicy

SciShow’s hot take: Peppers don’t produce that spicy goodness for the reason you think!

Hosted by: Hank Green

Head to https://scishowfinds.com/ for hand selected artifacts of the universe!
———-
Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
———-
Dooblydoo thanks go to the following Patreon supporters: Jerry Perez, Lazarus G, Sam Lutfi, Kevin Knupp, Nicholas Smith, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali. Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz
———-
Looking for SciShow elsewhere on the internet?
Facebook: http://www.facebook.com/scishow
Twitter: http://www.twitter.com/scishow
Tumblr: http://scishow.tumblr.com
Instagram: http://instagram.com/thescishow
———-
Sources:
https://www.sciencedirect.com/science/article/pii/S0092867402006372
https://link.springer.com/article/10.1007/s00442-006-0496-y#page-1
https://www.nature.com/articles/35086653
https://www.ncbi.nlm.nih.gov/pubmed/9035246?dopt=Abstract https://www.ncbi.nlm.nih.gov/pubmed/2093168?dopt=Abstract https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3311884/ https://link.springer.com/article/10.1007%2Fs10886-005-9017-4
https://www.theguardian.com/science/grrlscientist/2011/dec/22/economics-red-chili-peppers
https://www.acs.org/content/dam/acsorg/education/resources/highschool/chemmatters/archive/chemmatters-dec2013-pepper.pdf http://www.pnas.org/content/pnas/105/33/11808.full.pdf https://www.smithsonianmag.com/science-nature/whats-so-hot-about-chili-peppers-116907465/

Images:
https://commons.wikimedia.org/wiki/File:Habanero_peppers.svg#filehistory
https://commons.wikimedia.org/wiki/File:California_Red_Chili_Peppers.jpg
https://commons.wikimedia.org/wiki/File:Microconidia_and_Macroconidia_of_the_fungus_Fusarium_sp.jpg
https://commons.wikimedia.org/wiki/File:Anaheim_Chili_Peppers.jpg

Why Are Mosquitoes Attracted To Me?!

Mosquitoes are attracted to me and it’s likely due to my genes.
This video is sponsored by 23andMe https://23andme.com/veritasium
Huge thanks to Prof. Immo Hansen and team: http://ve42.co/hansen

References:
Genome Wide Association Study for self-reported mosquito attractiveness:
http://ve42.co/MossieGWAS

The twin study showing correlated attractiveness is stronger for identical twins:
http://ve42.co/MossieTwins

Some things we know make mosquitoes more attracted to you:
Exercising, higher metabolism, higher body temperature, more body odor, being pregnant, type O blood, infrequent bathing, lactic acid, ammonia, acetone.

There are a number of folk remedies people believe protect them from mosquito bites like drinking alcohol, eating garlic, or taking vitamin B. These do not appear to provide any benefit in lab studies and in fact drinking alcohol is associated with increased mosquito activity because it causes blood vessels near the surface of the skin to dilate.

And apparently some of your attractiveness to mosquitos is simply genetic. This may be mediated through your immune system, which is what a lot of the genes identified were associated with.

Molecular models are microSnatoms: http://snatoms.com

Filming in New Mexico by Raquel Nuno
Animations by Jacqui Robertson

The opinions and conclusions drawn in this video are those of Veritasium and not 23andMe.

Why Is Blue So Rare In Nature?

Duh, except for the sky… and the ocean…
Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub
↓↓↓ More info and sources below ↓↓↓

Among living things, the color blue is oddly rare. Blue rocks, blue sky, blue water, sure. But blue animals? They are few and far between. And the ones that do make blue? They make it in some very strange and special ways compared to other colors. In this video, we’ll look at some very cool butterflies to help us learn how living things make blue, and why this beautiful hue is so rare in nature.

SPECIAL THANKS:
Smithsonian Institution – National Museum of Natural History
Bob Robbins, Ph.D. – Curator of Lepidoptera
Juan Pablo Hurtado Padilla – Microscope Educator

Richard Prum, Ph.D. – Yale University
Vinothan Manoharan, Ph.D. – Harvard University

SOURCES:

———–
FOLLOW US:

Merch: https://store.dftba.com/collections/its-okay-to-be-smart
Facebook: http://www.facebook.com/itsokaytobesmart
Twitter:@DrJoeHanson @okaytobesmart
Tumblr: http://www.itsokaytobesmart.com
Instagram: @DrJoeHanson

———–

It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Joe Hanson, Ph.D.
Producer/editor/animator: Jordan Husmann
Producer: Stephanie Noone and Amanda Fox

Produced by PBS Digital Studios
Music via APM

Antarctic Lava to Pink Snow: The Science of Winter

“If you live in the northern hemisphere, there’s a decent chance you’re in a winter wonderland right now. Settle in with a hot drink for this winter compilation and learn about some of the interesting things that make winter wondrous!

We’re conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017

Hosted by: Stefan Chin
———-
Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
———-
Dooblydoo thanks go to the following Patreon supporters: Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, Inerri, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz
———-
Looking for SciShow elsewhere on the internet?
Facebook: http://www.facebook.com/scishow
Twitter: http://www.twitter.com/scishow
Tumblr: http://scishow.tumblr.com
Instagram: http://instagram.com/thescishow
———-
Sources:
https://www.youtube.com/watch?v=JSEQvyjACyA
https://www.youtube.com/watch?v=0pvtu-ADZSU
https://www.youtube.com/watch?v=5FHpk5UeHB8
https://www.youtube.com/watch?v=WZV8gM2_MFQ
https://www.youtube.com/watch?v=7l7CjI9n-Zc