Refracting vs Reflecting Telescopes | Difference & Diagrams

Reflecting Telescope | Definition, Advantages & Disadvantages

Types of Telescopes Explained - Learn What Fits Your Needs at OPT

Celestron 22203 AstroFi 130 Wireless Reflecting Telescope, Black

Black History Month: Five major innovations created by Black inventors

History | Ancient History on Instagram: "The Pedestrian Catcher was a bizarre and ultimately impractical invention introduced in the 1920s, designed as a mechanical solution to the problem of jaywalking in increasingly busy urban streets. Essentially, it consisted of a spring-loaded net or cage mounted on a pole or cart, intended to “catch” pedestrians who ignored traffic signals or crossed streets recklessly. Inventors promoted it as a way to enforce safety laws without relying solely on police