Temperature's rising: expert says dinosaurs were warm-blooded
By Will Dunham WASHINGTON (Reuters) - Dinosaurs, those bygone masters of the planet, were warm-blooded just like today's mammals, according to a scientist who judged their metabolism using body mass and growth rates deduced from fossils of species including Tyrannosaurus rex. Paleontologist Michael D'Emic of Stony Brook University in New York took issue with the conclusion of other researchers last year that dinosaurs were neither cold-blooded nor warm-blooded, but had a metabolism somewhere in between. Scientists have debated since the 19th century whether dinosaurs were slow, lumbering, cold-blooded creatures, as originally thought, or boasted a more warm-blooded physiology allowing for a vigorous lifestyle.
Thu, 28 May 2015 16:43:34 -0400
Czech teacher battles bee-killing disease with hot hive
By Robert Muller CHRUDIM, Czech Republic (Reuters) - Scientists battling a bee-killing disease are about to start testing a new weapon -- a sun-heated hive designed by a Czech high school teacher. Roman Linhart told Reuters he had secured a patent for his invention after 10 years of research into ways of wiping out varroosis disease, which has been destroying bee colonies across the world. The teacher at Chrudim's Secondary School of Agriculture, 120 km (75 miles) east from Prague, joins a line-up of experts who have been trying to find an efficient way to tackle the condition for decades.
Thu, 28 May 2015 13:21:34 -0400
Serpent robot evolves into Snake Monster
By Ben Gruber Pittsburgh, Pensylvania - Researchers have taken their serpentine machines, developed over decades at Carnegie Mellon University in the United States, and connected them to a central hub to create one of the most robust robots ever developed. Its creators have named it the Snake Monster. At the technology's core, says robotics professor Howie Choset, are modules which connect to each other, allowing researchers to easily assemble and program task-specific robots in minutes. "These modules that we have designed and other modules to be designed, they are like a smart Lego set. Choset says robots that can be easily assembled could potentially have a huge impact on how search and rescue operations are carried out in the future.
Thu, 28 May 2015 14:30:54 -0400
Science journal retracts gay-marriage study after evidence of fraud
Amid evidence of fraud in a high-profile study on how canvassers can convince people to back same-sex marriage, the journal Science, which published the study, retracted it on Thursday. The senior author agreed to the retraction, Science editor-in-chief Marcia McNutt said in a statement on the journal's website. Specifically, the study examined whether door-to-door canvassers who identify as gay can convince people to support same-sex marriage and do so more effectively than heterosexual canvassers.
Thu, 28 May 2015 15:59:31 -0400
Ethiopian fossils represent new member of human family tree
By Will Dunham WASHINGTON (Reuters) - Jaw and teeth fossils found on the silty clay surface of Ethiopia's Afar region represent a previously unknown member of humankind's family tree that lived 3.3 to 3.5 million years ago alongside the famous human ancestor "Lucy," scientists say. The fossils shed new light on a key period in the human lineage's evolution before the emergence of our genus Homo and provide the first evidence that two early human ancestor species lived at the same time and place prior to 3 million years ago, they said in announcing the discovery on Wednesday. The new species, Australopithecus deyiremeda, combined ape-like and human-like traits as did Lucy's species, Australopithecus afarensis, but was sufficiently different to warrant recognition as a separate species, they said.
Wed, 27 May 2015 13:35:13 -0400
FIFA Scandal: The Complicated Science of Corruption
The soccer world is abuzz with the allegations that officials at FIFA (Fdration Internationale de Football Association) engaged in racketeering, money laundering and other criminal activities. Officials at FIFA engaged in a "24-year scheme to enrich themselves through the corruption of international soccer," according to a statement released by the United States Department of Justice on Wednesday (May 27). But while it's tempting to blame such activities on poor morals, research shows that corruption or abuse of power for private gain is far more complicated, said Marina Zaloznaya, an assistant professor of sociology at the University of Iowa.
Sat, 30 May 2015 09:11:37 -0400
Dragons of Xanadu: Sculptures Discovered in Legendary City
The remains of three colorful dragon heads made of clay have been discovered in a huge palace in Xanadu, a city constructed by the grandsons of Genghis Khan. The construction of Xanadu, known in China as Shangdu, started in 1256 at a time when the Mongol Empire, led by Mngke Khan (grandson of Genghis Khan), was in the process of taking over China.
Sat, 30 May 2015 09:07:08 -0400
Black Widows' Bad Rap: 4 Misconceptions About the Spider
One woman's snack break turned sour this week when she reached into a bag of grapes and felt the bite of a venomous black widow spider. Believe it or not, black widow spiders don't want to live inside your bag of grapes. If you happen to find one of these critters in your grocery bag, you can bet the arachnid got there by accident, said Catherine Scott, an arachnologist at Simon Fraser University in British Columbia, Canada.
Sat, 30 May 2015 09:05:30 -0400
Sounds of Science: NASA Satellites Sing at World Science Festival
At the World Science Festival, running through Sunday here, NASA debuted the "NASA Orbit Pavilion." The exhibit's metal enclosure looks something like a spiral seashell and offers an auditory experience inspired by NASA's Earth-watching satellites. "Most people don't know that NASA studies the Earth," said Dan Goods, a NASA visual strategist who helped create the Orbit Pavilion.
Sat, 30 May 2015 07:50:39 -0400
Virgin Galactic's 2nd SpaceShipTwo Lowers Its Landing Gear (Photo)
SpaceShipTwo lowered its landing gear on May 21 in the ship's construction hangar at the Mojave Air and Space Port in California. Virgin Galactic plans to use a fleet of suborbital SpaceShipTwo spacecraft to fly paying passengers on roundtrip space missions. "Still much to be done, but it's looking great," Virgin Galactic representatives wrote in a Twitter post.
Sat, 30 May 2015 07:40:33 -0400
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