ResourceHub

Ruby laser - the first laser ever made - showing how electronic transitions create stimulated emission to give coherent light, and then how the ends of the ruby cavity create a narrow wavelength highly collimated beam

For Those Who Want to Learn

The basic theory that relates to data transmission, namely how electromagnetic waves are generated by antennas and how they encode 1's and 0's. Non essential information for a hobbyist, but really interesting none the less.

Wondering what is happening in the body when it undergoes an MRI? This Video Provides Insights in This Procedure.

To understand the basic concept of photography one really needs to understand what a camera is. This lesson will show you the progression of the camera from a basic pinhole-camera into a modern digital camera. | Answers for Eager Minds

In this short video, the context is given on how to think about AI.

How Elevator Works. Elevator Construction Animation. Technology Behind the Elevator. The elevator is a type of vertical transport equipment that efficiently moves people or goods between floors of a building. Elevators are generally powered by electric motors that either drive traction cables or counterweight systems like a hoist, or pump hydraulic fluid to raise a cylindrical piston like a jack. | Engineering

The technology that keeps huge cargo ships afloat is amazingly simple. PJ, a masters student in Naval Construction and Engineering at MIT, explains just how simple it really is. | Science in Construction