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Scientists have greatly expanded the range of functional temperatures for ferroelectrics, a key material used in a variety of everyday applications, by creating the first-ever polarization gradient in...
Smithsonian Scientists Find That the Earth Sank Twice,Flooding the Western Amazon
Smithsonian Scientists the Earth Sank Twice Flooding the Western Amazon
2017/7/19
A tiny shark tooth, part of a mantis shrimp and microscopic marine organisms reveal that as the Andes rose, the Western Amazon sank twice, each time for less than a million years. Water from the Carib...
Scientists are trying to predict the future behavior of El Niño -- the formation of warmer-than-usual ocean waters in the equatorial Pacific -- by looking back in time.This week, the journal Geol...
Scientists discover fossil of dinosaur ancestor with surprising croc-like appearance
Scientists fossil dinosaur ancestor croc-like appearance
2017/4/27
Scientists have long wondered what the earliest dinosaur relatives looked like. Most assumed they would resemble miniature dinosaurs, about the size of chickens, and walk on two legs.The discovery of ...
Virginia Tech scientists discover early dinosaur cousin had a surprising croc-like look
Virginia Tech scientists early dinosaur cousin croc-like look
2017/4/27
For decades, scientists have wondered what the earliest dinosaur relatives looked like. Most assumed that they would look like miniature dinosaurs, be about the size of a chicken, and walk on two legs...
Atmospheric scientists wrap up winter cloud-seeding project in southwestern Idaho
Atmospheric scientists wrap up winter cloud-seeding project southwestern Idaho
2017/4/27
Can cloud seeding -- dispersing particles into the air with the aim of increasing precipitation -- increase snowfall?This winter, a team of researchers funded by the National Science Foundation (NSF) ...
Scientists link California droughts and floods to distinctive atmospheric waves
Scientists California droughts floods atmospheric waves
2017/4/27
The crippling wintertime droughts that struck California from 2013 to 2015, as well as this year's unusually wet California winter, appear to be associated with the same phenomenon: a distinctive wave...
Scientists identify brain cells involved in Pavlovian response
Scientists brain cells Pavlovian response
2017/3/30
In his famous experiment, Russian scientist Ivan Pavlov rang a bell each time he fed his dogs. Soon, the dogs began drooling in anticipation when they heard the bell, even before food appeared.Now, a ...
Stanford scientists study Pavlovian conditioning in neural networks
Stanford scientists Pavlovian conditioning neural networks
2017/3/30
In the decades following the work by physiologist Ivan Pavlov and his famous salivating dogs, scientists have discovered how molecules and cells in the brain learn to associate two stimuli, like Pavlo...
Researchers create 'time crystals' envisioned by Princeton scientists（图）
Researchers time crystals Princeton scientists
2017/3/30
Time crystals may sound like something from science fiction, having more to do with time travel or Dr. Who. These strange materials — in which atoms and molecules are arranged across space and time — ...
UCLA scientists show how to amplify or stifle signals for immune responses
UCLA scientists amplify stifle signals immune responses
2017/3/30
T cells, the managers of our immune systems, spend their days shaking hands with another type of cell that presents small pieces of protein from pathogens or cancerous cells to the T cell. But each T ...
NSF-supported scientists present research results on ecosystem change
NSF scientists present research results ecosystem change
2017/3/14
On March 21, scientists from across the National Science Foundation's (NSF) Long-Term Ecological Research (LTER) Network will take part in an annual mini-symposium, presenting results on how ecosystem...
Scientists Use Big-Brother Technology to Spy on Bumblebees
Scientists Big-Brother Technology Spy on Bumblebees
2017/3/14
By tagging individual bumblebees with microchips, biologists have gained insights into the daily life of a colony of bumblebees (Bombus impatiens) in unprecedented detail. The team found that while mo...
Scientists make huge dataset of nearby stars available to public
Scientists huge dataset nearby stars available public
2017/3/13
The search for planets beyond our solar system is about to gain some new recruits.Today, a team that includes MIT and is led by the Carnegie Institution for Science has released the largest collection...
Although helium is the second most-abundant element (after hydrogen) in the universe, it doesn’t play well with others. It is a member of a family of seven elements called the noble gases, which are c...