cats Clever video: Watch cats knocking down dominoes to get some food Rusty Blazenhoff

music Watch this complex marble run synchronized with Tchaikovsky Andrea James

Kids Watch this amazing display of domino topping expertise Andrea James

Kids Watch a quarter million dominoes fall in this delightful game-themed setup Andrea James

Gadgets Watch wireless dominoes topple without touching each other Andrea James

Kids Watch 4,200 dominoes fall in glorious 360 degrees Andrea James

dominoes Tipping point example Mark Frauenfelder

video Gorgeous triple spiral of 15K dominoes comes tumbling down Andrea James

fail Watch a giant domino tower fall after 7 hours of building with 3,242 dominoes Xeni Jardin

fbi Newly released documents show that the FBI used standard FBI tactics on Michael Flynn Thom Dunn

future The urgent threat of hormone-disrupting chemicals to our health and future Mark Frauenfelder

Science WATCH: Two New Adam Savage #MythbustersJr episodes, 'Demolition Dominoes' and 'Gravity Defying Carl' Xeni Jardin

puzzles This is what 'going viral' looks like Rusty Blazenhoff

late stage capitalism Capitalism torched the world, fascism rose from the ashes Cory Doctorow

chain reactions This is the best marble chain reaction video so far Mark Frauenfelder

News Professor tells student "Australia isn't a country" and gives her a failing grade Mark Frauenfelder

visual culture "The Kid Should See This" is an antidote to idiotic kid-meme Youtube Clive Thompson

sexual harassment Notes from the #MeToo march: thoughts and prayers can't right what is wrong Maureen Herman