Why Are There Bacteria In My Yogurt? Having bacteria in your…

Why Are There Bacteria In My Yogurt? 

Having bacteria in your food doesn’t really sound great, but you couldn’t have yogurt without it! Learn why in this week’s QQ!

Hosted by: Hank Green

• http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=131.200
• http://www.npr.org/sections/thesalt/2015/07/15/391927036/hey-yogurt-maker-whered-you-get-those-microbes
• http://www.culturesforhealth.com/choosing-a-yogurt-starter-culture
• http://aboutyogurt.com/index.asp?bid=28
• http://www.milkfacts.info/Milk%20Composition/Protein.htm
• https://microbewiki.kenyon.edu/index.php/The_Role_of_Bacteria_in_the_Health_Potential_of_Yogurt

By: SciShow.
Support SciShow on Patreon

Do You Really Have a New Body Every 7 Years? You may have heard…

Do You Really Have a New Body Every 7 Years? 

You may have heard the rumor. Every seven years your body becomes a whole new person. But is there anything to this? Check out this SciShow episode to find out!

Hosted by: Hank Green

Sources:

• http://www.livescience.com/33179-does-human-body-replace-cells-seven-years.html
• http://book.bionumbers.org/how-quickly-do-different-cells-in-the-body-replace-themselves/
• http://askanaturalist.com/do-we-replace-our-cells-every-7-or-10-years/
• http://science.howstuffworks.com/life/cellular-microscopic/does-body-really-replace-seven-years.htm
• https://www.newscientist.com/article/dn23665-nuclear-bomb-tests-reveal-brain-regeneration-in-humans
• http://www.wisegeek.org/what-is-the-average-cell-life-span.htm
• http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2991140/
• http://www.tandfonline.com/doi/abs/10.3109/03014460.2013.807878#.VxUP9NQgu8o
• http://gizmodo.com/how-nuclear-bombs-tell-us-the-age-of-human-cells-1481591437
• http://www.ncbi.nlm.nih.gov/books/NBK45504/

By: SciShow.
Support SciShow on Patreon

8 Cheesy Science Facts Some science to go along with that board…

8 Cheesy Science Facts 

Some science to go along with that board of cheese at the party.

Hosted by: Hank Green

Sources:

• https://global.oup.com/academic/product/the-science-of-cheese-9780199922307?cc=gb&lang=en&
• http://www.ncbi.nlm.nih.gov/pubmed/23684037
• http://www.patpolowsky.com/pages/cheese_types/biochemistryofcheeseripening.pdf
• http://onlinelibrary.wiley.com/doi/10.1002/jssc.200500400/epdf
• http://www.listeriosisprevention.com/facts.html
• http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(05)65812-6/abstract
• http://www.sciencedirect.com/science/article/pii/S0958694602001206
• http://bionanotech.uniss.it/wp-content/uploads/2011/09/15-Roncada-Greppi.pdf
• http://chemse.oxfordjournals.org/content/34/2/145.long
• http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2843518/

By: SciShow.
Support SciShow on Patreon

The Truth About 10 Famous Inventions Did Thomas Edison invent…

The Truth About 10 Famous Inventions 

Did Thomas Edison invent the lightbulb? I mean… kind of… but also… no. Every great, world-changing invention is the culmination of efforts by dozens or hundreds of people, spanning decades or centuries.

Hosted by: Hank Green

Sources:

• http://www.theatlantic.com/business/archive/2012/06/forget-edison-this-is-how-historys-greatest-inventions-really-happened/258525/
• http://all-that-is-interesting.com/famous-inventors
• http://listverse.com/2009/04/10/top-10-wrongly-attributed-inventions/
• http://time.com/3517011/thomas-edison/
• http://www.bulbs.com/learning/history.aspx
• http://www.mitsubishielectric.com/elevator/overview/elevators/history.html
• http://www.livescience.com/44186-who-invented-the-steam-engine.html
• http://www.egr.msu.edu/~lira/supp/steam/
• http://www.georgiaencyclopedia.org/articles/history-archaeology/cotton-gins
• https://www.asme.org/engineering-topics/articles/manufacturing-processing/eli-whitney
• https://www.loc.gov/rr/scitech/mysteries/auto.html
• http://www.britannica.com/biography/Henry-Ford
• http://www.space.com/21950-who-invented-the-telescope.html
• http://science.howstuffworks.com/innovation/inventions/who-invented-the-radio.htm
• http://www.airspacemag.com/history-of-flight/who-flew-first-290750/?no-ist
• http://www.britannica.com/technology/history-of-flight
• http://www.crtsite.com/page3.html
• https://www.nyu.edu/classes/stephens/History%20of%20Television%20page.htm
• http://arstechnica.com/features/2005/05/gui/7/
• http://www.britannica.com/technology/graphical-user-interface

By: SciShow.
Support SciShow on Patreon

Indiana Jones & Pascal’s Wager: Crash Course…

Indiana Jones & Pascal’s Wager: Crash Course Philosophy #15 

Today we conclude our unit on Philosophy of Religion and Hank gets a little help from Indiana Jones to explain religious pragmatism and Pascal’s Wager, fideism, and Kierkegaard’s leap to faith.

By: Crash Course.
Support The Crash Course on Patreon

The Science of Sunbeams Sunbeams shooting down through the…

The Science of Sunbeams 

Sunbeams shooting down through the clouds make for some great photographs, but what’s the science behind these beautiful rays of light?

Hosted by: Hank Green

Sources:

• http://www.weatheronline.co.uk/reports/wxfacts/Crepuscular-rays.htm
• http://gizmodo.com/5701255/what-are-anticrepuscular-rays
• http://blogs.discovermagazine.com/badastronomy/2006/08/02/crepuscular-rays/#.Vv_O8j_9Ffc

By: SciShow.
Support SciShow on Patreon

Weird Places: Movile Cave In 1986, a prospecting crew in…

Weird Places: Movile Cave 

In 1986, a prospecting crew in southern Romania was looking for a good place to build a geothermal power plant, when they accidentally discovered one of the oddest caves of all…

Hosted by: Hank Green

Sources:

• http://www.bbc.com/earth/story/20150904-the-bizarre-beasts-living-in-romanias-poison-cave
• http://www.tandfonline.com/doi/abs/10.1080/01490451.2013.839764?journalCode=ugmb20
• http://science.sciencemag.org/content/272/5270/1953
• http://www.nytimes.com/1995/12/12/science/evolving-in-the-dark-over-5.5-million-years.html
• https://nsf.gov/news/news_summ.jsp?cntn_id=100833&org=NSF&from=news
• http://www.thenakedscientists.com/HTML/interviews/interview/1600/

By: SciShow.
Support SciShow on Patreon

10 Fantastic Fungi Superpowers Join Hank Green to learn ten…

10 Fantastic Fungi Superpowers 

Join Hank Green to learn ten weird, scary, and amazing things fungi can do!

By: SciShow.
Support SciShow on Patreon

Anti-Vaxxers, Conspiracy Theories & Epistemic…

Anti-Vaxxers, Conspiracy Theories & Epistemic Responsibility: Crash Course Philosophy #14 

Today we explore what obligations we hold with our personal beliefs. Hank explains epistemic responsibility and the issues it raises with everything from religious belief, to ship owning, to vaccinations.

By: Crash Course.
Support The Crash Course on Patreon

Another SpaceX Landing, and New Horizons’s Next…

Another SpaceX Landing, and New Horizons’s Next Stop 

SpaceX has done it again! It’s landed the first stage of a Falcon 9 rocket and the Dragon capsule has returned from the ISS. Now, what’s next for New Horizons? It has its sights set an another tiny world in the Kuiper Belt.

Hosted by: Hank Green

Sources:

• SpaceX
  • http://www.space.com/32811-spacex-rocket-landing-jcsat-14-launch.html
  • http://www.spaceflightinsider.com/missions/iss/crew-packs-dragon-performs-science-nasa-announces-future-iss-crew-members/
  • https://www.nasa.gov/sites/default/files/atoms/files/spacex_crs-8_mission_overview.pdf
  • http://www.spacepolicyonline.com/events/spacex-8-dragon-return-to-earth-may-2016-pacific-ocean
• New Horizons
  • http://pluto.jhuapl.edu/Mission/The-Path-to-Pluto/Mission-Timeline.php
  • http://www.baltimoresun.com/news/nation-world/bs-hs-new-horizons-extended-20160423-story.html
  • http://www.planetary.org/blogs/emily-lakdawalla/2015/09011608-new-horizons-extended-mission-pt1.html
  • http://www.space.com/32049-kbo-2014-mu69.html
  • http://pluto.jhuapl.edu/News-Center/News-Article.php?page=20151105
  • http://www.nasa.gov/feature/nasa-s-new-horizons-team-selects-potential-kuiper-belt-flyby-target

By: SciShow Space.
Support SciShow on Patreon