In various industries and applications, it’s crucial to monitor the current and frequency of devices in real-time. These ...

On December 6, 2025, in Heilongjiang, China, @Xiaolóngrén shared a video of a boy playing with a coin. In the video, the boy uses a clear stylus on a dark purple device, placing a coin on the surface ...

Discover how to build a fully functional coin sorting machine from scratch! This DIY project guides you through every step—from marking and cutting plywood to assembling a spinning wheel and crafting ...

The United States will celebrate its 250th anniversary, or Semiquincentennial, in 2026 with a new set of circulating coins, created and released by the U.S. Mint, that celebrate the nation’s founding.