Think you can walk in a straight line, blindfolded? Guess again.

Here's a fun experiment to try next time you find yourself in an open field. Close your eyes (or wear a blindfold) and set off walking, taking care to walk in as straight a line as possible. Have a buddy monitor your route (and warn you of obstacles). Sounds simple enough, right? Turns out it's harder than you think. »9/25/13 1:40pm9/25/13 1:40pm

A computer that can read letters directly from your brain

By using brain scan data and a set of computer algorithms, scientists from the Netherlands were able to determine which letters a person was looking at. The breakthrough suggests it'll soon be possible to reconstruct human thoughts at an unprecedented level of detail, including what we see, remember — and even dream. »8/22/13 1:36pm8/22/13 1:36pm

This disorienting room has "gravitational mystery spots" that will literally make you sick

The art installation seen here is named, menacingly but appropriately, Demon Hill #2. It is the work of LA-based artist Julian Hoeber, and to step inside it is to abandon sensations of balance, proprioception, and general physical stability — all thanks to some fiendish architectural trickery. »10/25/12 4:40pm10/25/12 4:40pm