Illustration of TDRS-13, the final satellite in NASA’s Tracking and Data Relay Satellite (TDRS) constellation, which has provided crucial connectivity for govern- ment users like the ISS and the U.S.

Finding a 480V-ac solid-state timer having zero-crossover switching may prove to be an impossible task. Most solid-state timers are rated at only 1A and have voltage ratings no higher than 240V ac.

Olympic Games. Sydney McLaughlin-Levrone sets another world record, claims gold in 400m hurdles in Paris Olympic Games. Noah Lyles slammed for running 200m final with COVID: What are the Olympics' ...

If you're a casual track and field fan, you've probably heard of the 4x100 and 4x400 meter relays and can likely deduce how they are run from the names of the events alone. However, those are not the ...

The Architects of AI drove the economy, shaped geopolitics, and changed the way we interact with the world. Jensen Huang needs a moment. The CEO of Nvidia enters a cavernous ­studio at the company’s ...