8 Survival Myths That Will Definitely Make Things Worse

You might think you know how to survive if you end up stranded in the wild, but those tips you read on the internet might just make things worse!

Some tips seem too good to be true, and they are. Others are ingrained enough to be common knowledge, except they’re wrong.

Hosted by: Hank Green

Head to https://scishowfinds.com/ for hand selected artifacts of the universe!
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Sources:

https://www.istockphoto.com/photo/desert-cloudscape-gm482377760-69992289
https://www.istockphoto.com/photo/snowy-empty-driving-road-in-the-winter-iceland-gm657042568-119691245

Eating snow
http://scienceline.ucsb.edu/getkey.php?key=1619
https://www.npr.org/sections/thesalt/2016/01/23/463959512/so-you-want-to-eat-snow-is-it-safe-we-asked-scientists
https://www.istockphoto.com/photo/winter-scene-thaw-gm628875450-111753311

Cactus juice
https://www.britannica.com/story/can-you-drink-water-from-a-cactus
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC148931/
https://onlinelibrary.wiley.com/doi/pdf/10.1002/jsfa.2740350410
https://toxnet.nlm.nih.gov/cgi-bin/sis/search/a?dbs+hsdb:@term+@DOCNO+1202
https://www.khanacademy.org/science/biology/photosynthesis-in-plants/photorespiration–c3-c4-cam-plants/a/c3-c4-and-cam-plants-agriculture
https://www.kidney.org/atoz/content/calcium-oxalate-stone
https://commons.wikimedia.org/wiki/File:Ferocactus_wislizeni_(6541006057).jpg
https://en.wikipedia.org/wiki/File:Prickly_Pear_Closeup.jpg
https://www.istockphoto.com/photo/field-of-cactus-gm145997810-6138805

Urine and blood
http://www.slate.com/articles/news_and_politics/explainer/2008/05/the_yellow_liquid_diet.html
https://www.livescience.com/15899-drinking-blood-safe.html
https://www.hemochromatosis.org/#overview
https://www.istockphoto.com/photo/beer-with-forth-gm183243456-14730136
https://www.istockphoto.com/photo/blood-dripping-gm157509239-10684671

Moss
http://mentalfloss.com/article/56243/does-moss-really-only-grow-north-side-trees
http://scienceline.ucsb.edu/getkey.php?key=2975
http://projects.ncsu.edu/project/bio181de/Lab/plant_phylogeny/non-vascular.html
https://www.istockphoto.com/photo/strong-roots-of-old-tree-covered-with-green-moss-close-up-gm866600452-144131965
https://www.istockphoto.com/photo/the-gree-hell-mossy-roots-and-trunks-in-deep-forest-gm912425688-251189812

Alcohol
http://mentalfloss.com/article/32256/does-drinking-alcohol-really-keep-you-warm-when-its-cold-out
https://www.ncbi.nlm.nih.gov/pubmed/2318781
https://www.princeton.edu/~oa/safety/hypocold.shtml
https://www.istockphoto.com/photo/close-up-view-of-the-bottle-in-ice-gm133897014-18274727
https://www.istockphoto.com/photo/young-woman-drinking-a-tea-on-the-city-gm628664428-111676911

Frostbite
https://emedicine.medscape.com/article/926249-overview#a3
https://www.mayoclinic.org/diseases-conditions/hypothermia/diagnosis-treatment/drc-20352688
https://www.istockphoto.com/photo/man-with-a-tan-beanie-and-red-scarf-trying-to-warm-up-gm142527503-17874723

Snakebite
http://www.nejm.org/doi/full/10.1056/NEJMra013477
https://www.omicsonline.org/open-access/pathophysiological-and-pharmacological-effects-of-snake-venom-components-molecular-targets-2161-0495.1000-190.php?aid=25709
http://www.umich.edu/~elements/fogler&gurmen/html/web_mod/cobra/avenom.htm
https://www.istockphoto.com/photo/venomous-snake-bites-mans-finger-gm939901378-256963981
https://www.istockphoto.com/photo/isolated-diamondback-rattlesnake-gm91032724-5881298

Jellyfish
https://www.britannica.com/science/nematocyst#ref1013437
http://www.mdpi.com/2072-6651/9/3/105/htm?xid=PS_smithsonian
https://www.smithsonianmag.com/travel/how-fix-jellyfish-sting-180963582/
https://www.smithsonianmag.com/science-nature/whats-behind-that-jellyfish-sting-2844876/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4728541/
https://www.nytimes.com/2007/08/14/health/14real.html
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3773479/
https://en.wikipedia.org/wiki/File:Moon_jellyfish_at_Gota_Sagher.JPG
https://www.istockphoto.com/photo/stingers-gm172300393-3544362

Thumbnail:
https://www.istockphoto.com/photo/caveman-gm157533887-11308958

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!
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Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
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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
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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 Mars Rovers Don’t Study Water

Rovers like Curiosity search for life on Mars using rock and soil samples, but why don’t they examine liquid or frozen water?

Hosted by: Caitlin Hofmeister
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Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, D.A. Noe, alexander wadsworth, سلط الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, 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
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Sources:

https://nodis3.gsfc.nasa.gov/displayDir.cfm?Internal_ID=N_PD_8020_007G_&page_name=main&search_term=contamination
https://www.nap.edu/read/11381/chapter/3
https://planetaryprotection.nasa.gov/about-categories/
https://www.cbtnuggets.com/blog/2016/10/bytes-and-bacteria-exposing-the-germs-on-your-technology/
https://marsnext.jpl.nasa.gov/scieng_plantary.cfm
http://w.astro.berkeley.edu/~kalas/ethics/documents/environment/COSPAR%20Planetary%20Protection%20Policy.pdf
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20130010386.pdf
https://planetaryprotection.nasa.gov/file_download/47/VikingMicrobiologicalAssayPlan.pdf

Images:

https://en.wikipedia.org/wiki/File:Martian_north_polar_cap.jpg
https://en.wikipedia.org/wiki/File:Viking_Oven.jpg
https://en.wikipedia.org/wiki/File:PIA19808-MarsCuriosityRover-AeolisMons-BuckskinRock-20150805.jpg
https://commons.wikimedia.org/wiki/File:MarsCuriosityRover-Drilling-01.jpg
https://en.wikipedia.org/wiki/File:PIA15279_3rovers-stand_D2011_1215_D521.jpg
https://en.wikipedia.org/wiki/File:Viking_Lander_Model.jpg
https://en.wikipedia.org/wiki/File:PIA21635-Mars2020Rover-ArtistConcept-20170523.jpg
https://en.wikipedia.org/wiki/File:InSight_Lander_Transparent.png

Earth Has a New, Orbiting Disco Ball!

Earth has some new orbiters, and while one of them is vexing many scientists, another will help us learn more about our atmosphere.

Hosted by: Caitlin Hofmeister
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Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, D.A. Noe, alexander wadsworth, سلط 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
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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 products over at DFTBA Records: http://dftba.com/scishow
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Sources:

http://www.thehumanitystar.com/
https://www.rocketlabusa.com/news/updates/rocket-lab-successfully-reaches-orbit-and-deploys-payloads-january-21-2018/
https://www.theguardian.com/world/2018/jan/26/space-graffiti-astronomers-angry-over-launch-of-fake-star-into-sky
https://blogs.scientificamerican.com/life-unbounded/twinkle-twinkle-satellite-vermin/
https://www.iridium.com/blog/2011/08/17/video-roundup-iridium-flares/
http://www.satobs.org/iridium.html

https://www.nasa.gov/feature/contact-successfully-established-with-ses-14-satellite-hosting-nasas-gold-mission
https://www.nasa.gov/content/goddard/gold-science
https://scied.ucar.edu/shortcontent/thermosphere-overview
http://gold.cs.ucf.edu/wp-content/uploads/2017/12/GOLD-Fact-Sheet-2018.pdf
https://www.youtube.com/watch?v=pY-kBF3Jfig
https://arstechnica.com/science/2018/01/nasa-launches-a-mission-to-study-earths-final-frontier-the-edge-of-space/

Images:

https://www.rocketlabusa.com/gallery/
https://en.wikipedia.org/wiki/File:Iridium_flare_2008_08_11.jpg
https://en.wikipedia.org/wiki/File:Iridium_animation.gif
https://commons.wikimedia.org/wiki/File:Mercury,_Venus_and_the_Moon_Align.jpg
https://en.wikipedia.org/wiki/File:Comet_holmes_and_iridium_flare.jpg
https://en.wikipedia.org/wiki/File:Ionosphere_Layers_en.svg
https://en.wikipedia.org/wiki/File:Atmosphere_with_Ionosphere.svg
https://en.wikipedia.org/wiki/File:Diurnal_ionospheric_current.jpg
https://en.wikipedia.org/wiki/File:EarthAtmosphereBig.jpg

What Makes Radiators Bang So Loudly?

If you hear a loud bang in the middle of the night, it is probably your radiator. But how does a hollow hunk of metal make such a loud noise?

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
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Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
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Dooblydoo thanks go to the following Patreon supporters: Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, D.A. Noe, alexander wadsworth, سلطا 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
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Sources:
http://www.reclaimedradiators.co.uk/hx.html
http://www.popularmechanics.com/home/interior-projects/how-to/a9680/how-to-shut-up-that-noisy-steam-radiator-16131140/
http://www.nytimes.com/1981/03/01/nyregion/home-clinic-knocking-the-noise-out-of-radiators.html
https://www.bobvila.com/articles/how-to-repair-a-noisy-radiator/
https://www.youtube.com/watch?v=hXjUj3L06MY
https://www.youtube.com/watch?v=y0VQOZqiw7U
http://www.bonfe.com/blog/how-to-stop-noisy-heating-pipes-banging/
http://www.startribune.com/fixit-many-factors-cause-gurgling-radiator/14403101/
https://www.plumbcare.com/blog/2016/09/6-unusual-central-heating-noises-what-they-could-mean