Science See the winners of the best optical illusion of the year contest David Pescovitz

AI Which face is real? Rob Beschizza

illusions Freak out on this fantastic hand illusion David Pescovitz

DRONES Watch this drone dodge soccer balls hurled at it David Pescovitz

Science Enjoy this strange new audiovisual illusion from Caltech scientists David Pescovitz

Kids Watch how to make a pixellated avatar using an actual photo Andrea James

Audio Neat audio illusion explained using that annoying Smashmouth song David Pescovitz

Science Your perception of this graph is a graph of your perception David Pescovitz

music What is the slowest music humanly possible? Andrea James

Kids Beyond the big five, humans have dozens of senses Andrea James

art Watch MC Escher make art in this short documentary David Pescovitz

Science You can hear the difference between hot and cold water David Pescovitz

psychology Get high for free: stare in a friend's eyes for ten minutes Andrea James

google WATCH: More DeepDream obsessions Andrea James

b-side How refined is your color perception? Andrea James

machine learning How neural networks work – A good explainer video Mark Frauenfelder

language "Master bedroom" and "Master bath" won't be used in Houston's real estate listings anymore David Pescovitz