|
Subject |
Comments |
Views |
Author |
Date Written |
Fake it till you BECOME it
|
view preview
Perhaps one of my favourite TEDtalks. Amy Cuddy’s research on body language reveals that we can change other people’s perceptions - and even our own body chemistry - simply by changing body positions. Her take-home message is simple, instead of faking it till you make it and living a life as an impostor, you must fake it till you become it.
|
|
|
0 |
5179 |
bio_man |
8 years ago |
Watch how the ancient Babylonians tracked Jupiter in the sky
|
view preview
It's hard to fathom the difficulties our ancestors had to contend with given how our world has advanced with technological sophistication over the past century. We shouldn't, however, underestimate the power of the human-mind, and how everything that was discovered in the past paved the way for the practices used today, especially those used in science. Of the very first astronomers, the ancient Babylonian were the first to use simple arithmetic to predict the positions of celestial bodies. Evidence reveals that these astronomers, working several centuries B.C.E., also employed sophisticated geometric methods that foreshadow the development of calculus. Historians had thought such techniques did not emerge until more than 1400 years later, ...
|
|
|
0 |
5412 |
bio_man |
8 years ago |
Hammers are no match for this glass
|
view preview
The tough-yet-fragile physical properties of the tadpole-shaped pieces of glass known as Prince Rupert’s drops have puzzled physicists for as long as, well, there have been physicists. Bash the head with a hammer, and a drop gets barely a scratch. But break off its thin tail, and it shatters into fine powder. Researchers long ago realized that the strength of the drops - named for Prince Rupert of Bavaria, who presented five of them to Britain’s King Charles II in 1660 - has something to do with stresses in the glass created when a drop is made by letting a blob of molten glass fall into water, so that it cools rapidly. Twenty years ago, a pair of researchers took high-speed video of a drop disintegrating showing that, when the tail is brok ...
|
|
|
0 |
3822 |
bio_man |
6 years ago |
What causes the rattle in a rattlesnake's tail?
|
view preview
Rattlesnakes are a group of venomous snakes native to the Americas known for their loud rattling tail. The tip of their tail, known as the rattle (middle), vibrates to deter predators or serves as a warning to passers-by. The rattle is composed of a series of hollow, interlocked segments made of keratin, which are created by modifying the scales that cover the tip of the tail. The contraction of special "shaker" muscles in the tail causes these segments to vibrate against one another, making the rattling noise (which is amplified because the segments are hollow) in a behavior known as tail vibration. The muscles that cause the rattle to shake are some of the fastest known, firing 50 times per second on average, sustained for up to three hour ...
|
|
|
0 |
5976 |
bio_man |
6 years ago |
Nine longest words in the English language
|
view preview
Want to better your vocabulary? Try pronouncing these words on your own, then attempt to use at least one in your next conversation! Pneumonoultramicroscopicsilic ovolcanoconiosis – 45 letters- A lung disease caused by breathing in volcanic dust.
Supercalifragilisticexpialido cious – 34 letters- Meaning "wonderful", from song of this title in the movie Mary Poppins.
Floccinaucinihilipilification – 29 letters- Meaning "the action or habit of estimating as worthless".
Trinitrophenylmethylnitramine – 29 letters- A chemical compound used as a detonator in shells.
Antidisestablishmentarianism – 28 letters- Meaning "opposition to the disestablishment of the Church of England".
Electroencephalographically – 27 lettersMicrospectrophotometr ...
|
|
|
2 |
9159 |
bio_man |
5 years ago |
Watch this 1940's Disney Cartoon Made to Fight Malaria
|
view preview
In 1943, Walt Disney helped combat malaria by making an animated film called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitoes transmit malaria, which is a very bad disease. While not specifically mentioned in the film, malaria is caused by several species of the protozoan Plasmodium, of which Plasmodium vivax and Plasmodium falciparum are the most common. The most serious infections involve P. falciparum, which causes a higher incidence of complications and death. The short film advocated the killing of mosquitoes to stop the disease. Luckily, by 1951, malaria was finally eliminated in the United States ( eliminated means that no new cases arose in the country for 3 years). Today, oral chloroqui ...
|
|
|
0 |
3745 |
bio_man |
4 years ago |
A moth that resembles a hummingbird
|
view preview
As this hawk-moth feeds on flowers and makes a similar humming sound, it looks a lot like a hummingbird. What’s interesting is that it is surprisingly good at learning colors.
|
|
|
3 |
4208 |
duddy |
10 years ago |
Go home nature. You are drunk!
|
view preview
This is the Wilson's bird-of-paradise, found exclusively on the tiny islands of Waigeo and Batanta in the Raja Ampat archipelago of West Papua. That turquoise cap isn't made of feathers - it's actually a patch of very brightly coloured bald skin.
|
|
|
1 |
3271 |
duddy |
9 years ago |
|
0 |
2815 |
duddy |
9 years ago |
|
0 |
4298 |
duddy |
9 years ago |
|
1 |
4676 |
duddy |
9 years ago |
Please stop eating my face, sir
|
view preview
Watch as one of nature's most efficient killing machines slowly chows down on the face of a fly as it writhes helplessly in its arms. It's the sound that really got to us...
|
|
|
2 |
5831 |
duddy |
9 years ago |
|
1 |
10812 |
duddy |
9 years ago |
|
0 |
2954 |
duddy |
9 years ago |
|
0 |
8636 |
duddy |
9 years ago |