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How Caffeine Accidentally Took Over The World

AdultsFoodHistoryHumanScienceCulture
Plants don't make caffeine just for us, so what DO they make it for?
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Why do we eat popcorn at the movies? - Andrew Smith

AdultsFoodHistoryHuman
Trace the history of popcorn, from its origins in the Americas to its explosion of popularity in the 20th century.
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Explaining concrete while getting buried in it

AdultsConstructionHistoryScienceEngineering
Concrete = cement + sand + gravel. Cement is the most important man-made material on Earth.
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The Amazing AI Super Tutor for Students and Teachers

AdultsEducationHistoryHumanArtificial IntelligenceTechnology
Sal Khan, the founder and CEO of Khan Academy, thinks artificial intelligence could spark the greatest positive transformation education has ever seen.
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How Can We Respond to Climate Change?

AdultsHealthHistoryLifeEnvironmentSociety
Now that we know how complex and interwoven climate change is with society globally, we can begin to see it everywhere.
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Why We Haven’t Learned More In 101 Years Of Trying

AdultsHistoryHumanLifeScience
Almost everything we know about the reproductive practices of European eels comes from a genius study conducted more than 100 years ago.
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The Business Behind Kurzgesagt

AdultsHistoryMediaTechnologyBusiness
In 2023, Kurzgesagt has existed for 10 years (which is insanely long in internet years).
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Porcelain in the Wreckage | Drain the Oceans

AdultsHistoryLifeNatureScienceArt
Vanessa Litzenberg discusses the porcelain from the wreck. Drain the Oceans dives deep into the unknown; a truly epic, original series that takes underwater adventure and earth science illustration into a whole new era.
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This one weird trick will get you infinite gold - Dan Finkel

AdultsHistoryMathPsychologyHumorGaming
A few years ago, the king decided your life would be forfeit unless you tripled the gold coins in his treasury.
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What if you experienced every human life in history?

AdultsHistoryHumanLifePhilosophySociety
Examine the ethical stance known as longtermism, which is the idea that we should be doing more to protect future generations.
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Why New Zealand is Finally Getting its First Subway

AdultsCreativityHistoryLifeTransportationCities
New Zealand is building its biggest ever transport infrastructure project.
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What causes cavities? - Mel Rosenberg

AdultsEducationHealthHumanScienceHistory
When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with holes.
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The 3 Reasons This Tree Has Lived 5000 Years

AdultsHistoryLifeNatureScienceEnvironment
Methuselah’s environment lacks nutrients, water, and oxygen. In other words, it’s the perfect place to grow very very old.
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When are you actually an adult? - Shannon Odell

AdultsHistoryHumanLifePsychology
Explore how scientists define adulthood, and find out if there’s a specific age at which we reach maturity.
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Saving Wild Salmon Populations

AdultsAnimalsHistoryHumanEnvironmentWildlifeFilm
In her film 'Salmon Reflection' Norwegian and Unangax̂ filmmaker Anna Hoover explores the effects of a changing world on the communities of Bristol Bay, one of the last surviving wild salmon ecosystems.
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When Was The Worst Time In History To Die?

AdultsHealthHistoryHumanScience
By combining historical demography and epidemiology, we can (sort of) determine how people throughout history have died.
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Explore the three main ways viruses can be driven to extinction, and dig into the possibility of COVID-19 dying out.

AdultsHealthHistoryHumanScience
Viruses are wildly successful organisms. There are about 100 million times as many virus particles on Earth as there are stars in the observable universe.
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I tested the US Military’s secret space weapon

AdultsConstructionHistoryScienceSpaceTechnology
An engineer came up with a plan to drop tungsten telephone poles from space - the idea has been seriously considered on multiple occasions, so we tested it.
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Anthropology’s Greatest Hoax

AdultsHistoryHumanScienceCulture
Scientists are sometimes deemed objective observers of the world in which we live, but that’s not entirely true. They’re still human and can find themselves victim to fraudsters just like the lot of us.
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Why Do We Release So Much Gas?

AdultsHistoryHumanScienceEnvironmentGlobal Warming
The carbon dioxide we’re pumping into the air every day is causing unprecedented global warming and climate change.
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What Is The Best Shape For A Farm?

AdultsCreativityCultureHistoryScience
The shape of a farm can tell you a surprising amount about the land it's on and the people that use it.