Turbulent environment set the stage for leaps in human evolution and technology 320,000 years ago Drilling 139 meters down to volcanic rock provided scientists with a million-year environmental record. Human Origins Program, Smithsonian Richard Potts, Smithsonian Institution People thrive all across the globe, at every temperature, altitude and landscape. How did human beings
Recent studies have shown that wild birds breeding in acidified areas have difficulties with obtaining sufficient calcium for their eggshells, and that the cause of it is the shortage of land snails. Many birds have to search for Ca-rich snail shells on a daily basis during egg production. Molluscs depend on litter calcium,
Predation on large woody plant seeds; chestnuts, acorns and sloe kernels, was studied in deciduous forests of two size classes: small woodlots (< 1 ha) and large woods (at least 25 ha) in southern Sweden. Seeds used for the study were artificially distributed on the forest ground and seed predation measured as seed
The COVID-19 pandemic has caused a worldwide disruption. Most people have never witnessed such a global threat, and the world’s leaders have not dealt with a crisis of this magnitude; moreover, Research & Innovation (R&I) teams have little time to invent new pharmaceutical therapies. Nations are trying to implement controlling strategies for avoiding
Abstract We analyzed reports for 59,073 contacts of 5,706 coronavirus disease (COVID-19) index patients reported in South Korea during January 20–March 27, 2020. Of 10,592 household contacts, 11.8% had COVID-19. Of 48,481 nonhousehold contacts, 1.9% had COVID-19. Use of personal protective measures and social distancing reduces the likelihood of transmission. Effective contact tracing
BEIJING, Sept. Xinhua — China s first polar-observing satellite, BNU-, has obtained , images covering the Arctic and Antarctic regions after orbiting Earth for a full year, its owner, Beijing Normal University BNU, said on Saturday. At the press conference held in Beijing, the BNU released a series of remote sensing data of
Envision attending a concert of tens of thousands of people, yet you are guaranteed excellent cell phone service for video streaming, calling and using internet apps like social media. That world will be here soon, all thanks to 5G. That is the fifth generation of wireless technology that is used to support cellular
Wind shear was affecting both Tropical Storm Paulette and Rene in the Atlantic Ocean on Sept. . Infrared imagery from NASA s Aqua satellite showed that strong southwesterly wind shear pushed against Paulette creating a wedge-shaped storm. Tropical cyclones that appear less than round are likely being affected by wind shear or outside
The Chinese application, TikTok, for short videos, and the American company, Oracle, have reached a preliminary agreement according to which the company will be its technical provider in the United States and Walmart, the trading partner, prior to the enforcement of a federal ban on the Chinese company that owns the application. Oracle
While ULA builds the Atlas for NROL- it also is working to get NROL- launched on a Delta Heavy. WASHINGTON — United Launch Alliance has begun assembling the Atlas rocket that will launch a classified spy satellite sometime before the end of the year, the company said Sept. via Twitter. The vehicle will