Daily Archives: July 27, 2024

DIY Cooling Fibers Successfully Made!

From NightHawkInLight. Ad: Check out my sponsor and remove your personal information from the web at https://JoinDeleteMe.com/nighthawk and use code NIGHTHAWK for 20% off. DeleteMe international Plans: https://international.joindeleteme.com In this video we explore a series of experiments to make radiative sky cooling fibers, starting with a cotton candy machine and ending with success from an…

July 27, 2024 in NightHawkInLight.

The Remarkable Mechanism That Secures Nuclear Weapons

From New Mind. ▶️ Visit https://brilliant.org/NewMind to get a 30-day free trial + 20% off your annual subscription In the early days of nuclear weapons, security measures were surprisingly basic. This video explores the fascinating history and development of Permissive Action Links (PALs), the sophisticated systems that now safeguard nuclear arsenals. Timeline: 1940s-1950s: Primitive security…