Electromagnetic Coilgun Doesn’t Need a License and can be made at home with some various products and handyman abilities.
Cell Phone Antenna Booster: Full Bars & Always Connected
Picture of Face detection and tracking with Arduino and OpenCV
Face Recognition with Python, in under 25 lines of code - Real Python
High Frequency Induction Heating
How to make your own Magic Mirror!
Start Building antenna, LauC2 antenna
Picture of DIY PVC Crossbow
Picture of Pipe Dream: A Low Voltage Tesla Coil or 'Slayer Exciter'