It's time to learn how to make a proper parachute, it's one of the easiest projects of all times, cheap as well. So we will drop it from a drone because it's big, normally I will throw it myself, but ...

This is a very simple but useful project, strobe navigation lights for rc airplanes, or you can adjust the flashing time and make it a warning light for a forklift or even a turn signal light for a ...