Tyson designated an Earth Observatory

A 60-acre plot in Washington University in St. Louis’ Tyson Research Center has been named a Forest Global Earth Observatory, or ForestGEO. The oak-hickory forest in the rolling foothills of the Ozarks joins a network of 51 long-term forest study sites in 23 countries, including eight others in the United States. Together, the forests, containing roughly 8,500 species and 4.5 million individual trees, comprise the largest, systematically studied network of forest-ecology plots in the world.

University College Preview Night Dec. 12

University College — the professional and continuing education division in Arts & Sciences — is hosting Preview Night for the spring 2014 semester at 7 p.m. Thursday, Dec. 12, in Holmes Lounge, Ridgley Hall, on the Danforth Campus. Doors open at 6 p.m.; a light dinner will be served.

Amazon drones: Technology almost there, insurance and regulation still far off

For Amazon’s recently announced drone delivery system to get off the ground, the company will have to solve numerous difficult technological challenges. Chief among them will be increasing battery life, getting the drones to work without a central command and to “think” on their own, and determining what kind of navigation sensors they will use. As complicated as those tasks may be, says a WUSTL robotics expert, they will be much more easily solved than the seemingly more simple issues of regulation and insurance.

Beethoven, Tchaikovsky and Brahms Dec. 9

The hope was to repair a friendship. The result was a masterwork. On Dec. 9, the St. Louis Symphony’s Bjorn Ranheim and Shawn Weil will join the Washington University Symphony Orchestra for a performance of Johannes Brahms’ “Double Concerto in A for Violin and Cello.”​

Bear Necessities holds annual holiday sale

Bear Necessities, the nonprofit gift store operated by the Women’s Society of Washington University, will hold its annual holiday sale Dec. 10 and 11.