On the morning of July 7, 1944, Captain Ben L. Salomon of the U.S. Army’s 105th Infantry, commissioned as a dentist, single-handedly held off a fierce attack of an overwhelming force of Japanese soldiers... continue reading

posted by Mordhaus 7 years 2 months 1 week ago • 44 views • 6:24

YouTube: I came across these four physics puzzles over the years in discussions with Neil deGrasse Tyson (riddle 4: which part(s) of a moving train are going backwards with respect to the ground?), Simon... continue reading

posted by PlayhousePals 7 years 11 months ago • 1,232 views • 4:24

As a wildfire rages through the grasslands, three lions and three wildebeest flee for their lives. To escape the inferno, they must cross over to the left bank of a crocodile-infested river. Can you help... continue reading

posted by Mordhaus 8 years 4 months 1 week ago • 112 views • 4:19

Your favorite band is great at playing music...but not so great at being organized. They keep misplacing their instruments on tour, and it’s driving their manager mad. Can you solve the brain-numbing... continue reading

posted by Mordhaus 8 years 5 months 1 week ago • 224 views • 4:53

As your country's top spy, you must infiltrate the headquarters of the evil syndicate, find the secret control panel, and deactivate their death ray. But your reconnaissance team is spotty, and you have... continue reading

posted by Mordhaus 8 years 8 months 4 weeks ago • 279 views • 4:01

Your rich, eccentric uncle just passed away, and you and your 99 nasty relatives have been invited to the reading of his will. He wanted to leave all of his money to you, but he knew that if he did, your... continue reading

posted by Mordhaus 8 years 10 months 1 week ago • 286 views • 3:50

Taking that internship in a remote mountain lab might not have been the best idea. Pulling that lever with the skull symbol just to see what it did probably wasn’t so smart either. But now is not the... continue reading

posted by Mordhaus 8 years 11 months ago • 2,095 views • 3:50

An interesting riddle - can you sifters solve it, without resorting to the solution in the video (from 1:25)? iflscience: The following riddle is claimed to have been written by Einstein as a boy. It's... continue reading

posted by Zawash 9 years 6 months ago • 52 views • 5:08

UAlberta: UAlberta research team uses MRI video to observe for the first time what happens inside joints when they crack. (Edmonton) “Pull my finger,” a phrase embraced by school-aged kids and embarrassing... continue reading

posted by Zawash 9 years 11 months ago • 408 views • 7 secs

Richard Feynman describes a basic science riddle, how mirrors confuse left and right but not up and down.