Astrophysicists discover mechanism for spiral-arm formation in disk galaxies
Astrophysicists at the University of Arkansas have discovered a mechanism for the formation of the spiral arms in disk galaxies.
Astronomy
Aug 11, 2016
124
996
11/08/2016
Unearthed: the cannibal sharks of a forgotten age
Scientists have discovered macabre fossil evidence suggesting that 300 million-year-old sharks ate their own young, as fossil faeces of adult Orthacanthus sharks contained the tiny teeth of juveniles.
Ecology
Aug 11, 2016
0
3
Hawaiian petroglyphs revealed by shifting sands on Waianae coast
On a warm July evening, visitors Lonnie Watson and Mark Louviere from the Ft. Worth, Texas metro area did what they normally do during their frequent visits to Hawaii. They wandered out to the coastline to watch the setting ...
Archaeology
Aug 11, 2016
9
101
Cavitands enhance selectivity and hydrolysis rate of one ester on a long-chain diester
A challenge for chemists is trying to selectivity react one of two identical functional groups on the same molecule. For example, a diester with a long carbon chain in between the two ester groups has two chemically equivalent ...
Newspapers rethink paywalls as digital efforts sputter
Paywalls were supposed to help rescue newspapers from the crisis of sinking print circulation as readers shifted to getting their news online.
Business
Aug 11, 2016
0
16
Snapchat "Yellow Face" lens slapped as offensive
Vanishing message app Snapchat made a photo lens quickly disappear after an online uproar branding it an offensive stereotype of Asians worthy of the label "Yellow Face."
Internet
Aug 11, 2016
0
19
Officials skeptical $57M fish project will work
A group of Montana and federal wildlife officials has expressed opposition to a $57 million concrete dam and fish bypass that the U.S. government says would help an ancient and endangered fish species in the Yellowstone River.
Ecology
Aug 11, 2016
0
10
Indonesia urged to take stern action on illegal bird trade
A wildlife trade monitoring group has called on Indonesia to take strong action against traders of endangered birds who are driving several species toward extinction.
Ecology
Aug 11, 2016
0
8
Australian census back online 2 days after cyberattack
Australia's first attempt to conduct a census online resumed Thursday almost two days after it shut down due to what an angry prime minister described as system failures that left it vulnerable to cyberattack.
Security
Aug 11, 2016
0
7
Many endangered species face long waits for protection
The Endangered Species Act (ESA) was enacted by Congress in 1973 to protect species threatened with extinction. To receive protection, a species must first be listed as endangered or threatened in a process that is administered ...
Ecology
Aug 11, 2016
0
22
