circuit

Interesting Security

How did the Enigma Machine work?

This video uses 3D animation to go inside the legendary Enigma Machine, which encrypted German military secrets during World War II. Time stamps: 1:01-Encryption 2:42-Engima Machine 4:23-Simple Circuit Example 5:23-Inside the Machine 6:15-Rotors 8:51-Plugboard 10:08-Keyboard Mechanism 12:14-The Circuit 13:15-Circuit Recap 14:38-Rotor Mechanism 17:06-Machine Settings 18:14-Brilliant

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Science

The Big Misconception About Electricity

Here’s a fascinating riddle of science: do electrons carry energy around a complete conducting loop, transferring their energy to the load or is something else at play?

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Maker Solar

Should You Build or Buy a 5V USB Portable Solar Power Charger?

In this video, GreatScott! takes a closer look at a commercial 5V USB portable solar power charger. After measuring its output power and pretty much “short reviewing” the product, I will try to make my own DIY version that should cost around the same while outputting more power! Let’s get started!

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