This Video Will Hurt
A detailed explanation of a fascinating field of science and medicine by the always interesting C.G.P. Grey.[more inside]
When you get a headache, you're faced with the Big Three options for over-the-counter pain relief: aspirin, acetaminophen (paracetamol) or ibuprofen. But which is best, according to the latest scientific evidence? And what's the best for toothache, back pain, period pain or musculoskeletal injuries? A pain specialist explains who the winners are in each main category.
If a train leaves Chicago at noon carrying 20 passengers, 5 of whom smoke, in 4 cars, what is the name of the conductor's dog?
A nearly impossible logic puzzle. Other mindtwisting puzzles. More puzzles of varying difficulty (don't scroll down too far!). XKCD's take. (previously epic post Also: 1, 2)
Finally I can show you what I see in my head when I have a Visual Migraine. I get these a couple times a year, but only recently found this site with the amazingly-accurate flash animation.
Super Happy Epileptic Hour (flash/sound/headache inducing)