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/

 

The First Edition of the Encyclopedia Britannica Is Published on Dec. 10, 1768  The Encyclopedia Britannica, the oldest continuously published and revised work in the English language, was first made available to the public in Edinburgh, Scotland. This monumental work, which would go on to become a cornerstone of knowledge, marked the beginning of a publication that has influenced generations of scholars, students, and curious minds around the world.  The Encyclopædia Britannica was the brainchild of Colin Macfarquhar, a Scottish printer and bookseller, and Andrew Bell, a Scottish engraver. Together, they sought to create an authoritative, comprehensive, and accessible work that would encapsulate the growing body of knowledge of their time.  What began as a small printing project in Edinburgh grew into one of the most influential reference works in the world, providing access to knowledge and intellectual insight for generations, helping to shape the way we think about history, science, culture, and the world around us. Today, the Encyclopedia Britannica is regarded as one of the most influential reference works in the world. Our personal library to help us learn.  I hear  something better is coming along………