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Posted by duddy   January 18, 2017   14246 views

Richard P. Feynman (1918 - 1988) was a New York City born, Nobel Prize winner in Physics in 1965. He was an American theoretical physicist known for his work in quantum mechanics, as well as in particle physics for which he proposed the parton model.

Feynman developed a widely used pictorial representation scheme for the mathematical expressions governing the behavior of subatomic particles, which later became known as Feynman diagrams (below).


His passion for science and education later lead him to develop a universal learning model, now called the Feynman Technique, that could help you learn practically anything no matter how difficult or complicated. As long you or the educator uses simple terminology (no complicated words or terms), you [ ... ]
Feynman physics education technique model nobel prize quantum
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very interesting. Slight Smile
Posted on Jan 19, 2017 by cloveb
Posted by duddy   January 18, 2017   14195 views

That's the longest string of words that Nim Chimpsky, a chimpanzee who scientists raised as a human and taught sign language in the 1970s, ever signed. He was the subject of Project Nim, an experiment conducted by cognitive scientists at Columbia University to investigate whether chimps can learn language.

After years of exposing Nim to all things human, the researchers concluded that although he did learn to express demands - the desire for an orange, for instance - and knew 125 words, he couldn't fully grasp language, at least as they defined it. Language requires not just vocabulary but also syntax, they argued. "Give orange me," for example, means something different than "give me orange." From a very young age, humans understand that; w [ ... ]
chimpanzee words speech planet of the apes animals
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Posted by duddy   January 4, 2017   14385 views

Thanks to a cold environment, which causes a slow metabolism, bowhead whales (Balaena mysticetus) can live for more than 200 years - nearly 3 times longer than the average human, making it the longest-lived mammal.

Bowhead whales can grow 14 to 18 m (46 to 59 ft) in length, and unlike most whales, they lack a dorsal fin. This thick-bodied species can weigh from 75 to 100 tonnes (82 to 110 US tons). They live entirely in fertile Arctic and sub-Arctic waters, unlike other whales that migrate to low latitude waters to feed or reproduce. The bowhead also has the largest mouth of any animal.

Of course, following around a whale to measure how long it lives is practically impossible. Researchers discovered this amazing feature in 2007, when a 15 m [ ... ]
whales age bowhead arctic ocean size
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Posted by duddy   December 22, 2016   15814 views

Despite slang terms that imply otherwise, the human penis contains no bones. The same cannot be said for many of our closest evolutionary relatives: Chimpanzees and bonobos both have penis bones (a macaque one is pictured, left), also known as bacula.

To find out why some primates have the feature whereas others don’t, researchers traced the bone’s evolutionary history through time. The baculum first evolved between 145 million and 95 million years ago, as reported in the Proceedings of the Royal Society B. That means it was present in the most recent common ancestor of all primates and carnivores. Why some descendants, like humans, lost their bacula appears to be due to differences in mating practices: In primates, the presence of a penis [ ... ]
biology evolution anatomy reproduction organs apes humans
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Posted by bio_man   December 20, 2016   14378 views

The photo shown below was taken at a market in Shanghai, China.

Can you guess what they are?


Water caltrops (Trapa natans) are the seeds of a floating annual aquatic plant that's native to warm temperate parts of Eurasia and Africa. The plant grows in slow-moving water up to 5 m deep, and bear an ornately shaped fruit that resembles the head of a bull or the silhouette of a flying bat. Each fruit contains a single very large, starchy seed. T. natans and T. bicornis have been cultivated in China and the Indian subcontinent for at least 3,000 years for the edible seeds that are used in pastries, served steamed or boiled from street vendors, and even as a remedy for inebriation.

[ ... ]
china Shanghai edible strange food water plant
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