background preloader

Learning

Facebook Twitter

Radiation Dosage Chart. What children’s skulls look like as they prepare to lose their baby teeth. 100 Very Cool Facts About The Human Body. The Brain The human brain is the most complex and least understood part of the human anatomy.

100 Very Cool Facts About The Human Body

There may be a lot we don’t know, but here are a few interesting facts that we’ve got covered. Nerve impulses to and from the brain travel as fast as 170 miles per hour. Ever wonder how you can react so fast to things around you or why that stubbed toe hurts right away? It’s due to the super-speedy movement of nerve impulses from your brain to the rest of your body and vice versa, bringing reactions at the speed of a high powered luxury sports car.The brain operates on the same amount of power as 10-watt light bulb. Hair and Nails While they’re not a living part of your body, most people spend a good amount of time caring for their hair and nails. Facial hair grows faster than any other hair on the body. Internal Organs Though we may not give them much thought unless they’re bothering us, our internal organs are what allow us to go on eating, breathing and walking around. Bodily Functions Senses. The GOOD 100, or so.

History

Great People and Their ideas. 100 Websites You Should Know and Use. Entertainment Meet David Peterson, who developed Dothraki for Game of Thrones There are seven different words in Dothraki for striking another person with a sword.

100 Websites You Should Know and Use

Among them: “hlizifikh,” a wild but powerful strike; “hrakkarikh,”a quick and accurate strike; and “gezrikh,” a fake-out or decoy strike. But you won’t find these words in George R. R. Culture My Year of TED: How 54 talks changed a life By Kylie Dunn What do you get when you cross a 39-year-old perfectionist with 54 TED Talks and far more honesty than any person probably needs to experience? The Experience and Perception of Time.

What is ‘the perception of time’?

The Experience and Perception of Time

The very expression ‘the perception of time’ invites objection. Insofar as time is something different from events, we do not perceive time as such, but changes or events in time. But, arguably, we do not perceive events only, but also their temporal relations. So, just as it is natural to say that we perceive spatial distances and other relations between objects (I see the dragonfly as hovering above the surface of the water), it seems natural to talk of perceiving one event following another (the thunderclap as following the flash of lightning), though even here there is a difficulty. For what we perceive, we perceive as present—as going on right now. Kinds of temporal experience There are a number of what Ernst Pöppel (1978) calls ‘elementary time experiences’, or fundamental aspects of our experience of time.

Duration The inference model may be plausible enough when we are dealing with distant events, but rather less so for much more recent ones. Water is dangerous. This was found on the newsgroup: rec.humor.funny A student at Eagle Rock Junior High won first prize at the Greater Idaho Falls Science Fair, April 26.

Water is dangerous

He was attempting to show how conditioned we have become to alarmists practicing junk science and spreading fear of everything in our environment. In his project he urged people to sign a petition demanding strict control or total elimination of the chemical "dihydrogen monoxide. " And for plenty of good reasons, since: it can cause excessive sweating and vomiting it is a major component in acid rain it can cause severe burns in its gaseous state accidental inhalation can kill you it contributes to erosion it decreases effectiveness of automobile brakes it has been found in tumors of terminal cancer patients He asked 50 people if they supported a ban of the chemical. He feels the conclusion is obvious.