Learners Live

US Open Set Up for Dark Sky-Friendly Outdoor Lights by Adithi Ramakrishnan

When the court lights flicker on at the U.S. Open, tennis stars shine under illumination designed to cut light pollution.  The U.S. Tennis Association swapped metal halide bulbs for shielded wedge-shaped LED lights. The complex’s 17 tournament courts and five practice courts were approved as dark sky-friendly last year. Most arenas make the change during scheduled maintenance and renovation, working with sports lighting company Musco. The company lights over 3,000 venues a year including college football stadiums, tennis courts and rail yards. US Open Set Up for Dark Sky-Friendly Outdoor Lights – tEDmag

Pickleball & Tennis Court Illumination by U.S. Architectural Lighting

U. S. Architectural Lighting recently introduced Baseline – Pickleball & Tennis Court Lighting. Designed specifically for the court, Baseline uses a Type IV CL precision optic designed especially to meet IESNA / USA Pickleball / USTA Standard Performance Criteria for court photometrics. The luminaires distribute uniform light across the court surface without creating hot spots. To minimize glare, the light is directed at a low angle onto the court surface avoiding direct glare into the eyes of the players to prevent discomfort or distractions during play. The Baseline is available in five sizes in wattages from 85W to 550W, with up to four fixtures per pole, in parallel assembly arrangements, allowing a wide range of lumen packages. https://usaltg.com/product/bas/

 

That’s one small step for man, one giant leap for mankind – The last time human beings headed moonward was on the Apollo 17 flight that launched Dec. 7, 1972—before any of the Artemis II crew members were born. Today’s crew will not land on the moon—they won’t even orbit the moon. But they will whip around the lunar far side, on a shakedown mission test-flying the Orion spacecraft. This is essential preparatory work for achieving NASA’s bigger lunar goals. Next year there will be another test flight in low Earth orbit during the flight of Artemis III, followed by up to two moon landings by Artemis IV and V in 2028, and annual landings thereafter. Unlike the Apollo program, Artemis aims not just for the so-called flags-and-footprints model of short, one- to three-day stays on the moon, but for a long-term presence at a long-term moon base in the south lunar pole, where deposits of ice can provide drinkable water, breathable oxygen, and oxygen-hydrogen rocket fuel. Very much like the Apollo program, Artemis finds itself in a closely watched moon race, not with the old Soviet Union this time, but with China, which has announced its intention to have astronauts on the moon by 2030. The U.S. is not going it alone this time, however. While Apollo was an entirely American enterprise, Artemis flies under the flag of 60 countries, signatories to the Artemis Accords, an international pact whose members vow to support the peaceful exploration of space and contribute money, modules, and astronauts to the Artemis cause. Artemis II Has Launched. Here’s Everything You Need to Know