kits Cool demo of mechanical circuits: electronics without electricity Mark Frauenfelder

simple machines Almost everything you want to know about wheels is in this 1966 explainer movie Mark Frauenfelder

explainers Sexuality explained with soft drinks Andrew Yi

explainers Terrific 1968 explainer movie about lasers Mark Frauenfelder

explainers Visual explainer of how a push-latch mechanism works Mark Frauenfelder

quantum weirdness Teenage science explainer wins scholarship for brilliant explanation of quantum tunneling Clive Thompson

greenhouse gasses Animated explainer: "Is it too late to stop climate change?" David Pescovitz

tops Here's why a tippe top will spin on its narrow end Andrea James

black death The 14th century Black Plague gets the History Hijinks treatment Andrea James

explainers Amazing explainer websites Mark Frauenfelder

looters Explaining the con that is private equity Cory Doctorow

#moneylaundry Everything you wanted to know about money-laundering but were afraid to ask Cory Doctorow

explainers Great backgrounder on the Hong Kong protests: what's at stake and how'd we get here? Cory Doctorow

explainers Explainer video: why is gold expensive? Mark Frauenfelder

a trillion here a trillion there pretty soon you're talking real money Matt Taibbi finally makes sense of the Pentagon's trillions in off-books "budgetary irregularities" Cory Doctorow

gut flora Me, Myself and Microbes: the relationship between microbes, brains and behaviors Cory Doctorow

causality Can the future influence the past? The scientific case for quantum retrocausality Andrea James

friendly skies of united John Oliver on monopolies, anti-trust and the death of real competitive markets Cory Doctorow

brevity is the soul of wit The basics of crypto, in 4.5 pages, using only small words lawmakers can understand Cory Doctorow

counting chickens What's happening to Trump's popularity? Parsing the polls with Nate Silver Cory Doctorow