Feb 15, 2021 · Toggle navigation rimstar.org. Science and Electronics Projects. What's New. October 28, 2024 : Added a new video about improvements to Izzy object selection and …

Toggle navigation rimstar.org. 30kV DC Power Supply (homemade/DIY) using flyback and multiplier/tripler. This is my DIY high voltage power supply. It puts out up to 30kV DC and …

One formula for inductance is as follows: Where: L = inductance u r = relative permeability of the core material (air = 1) ; turns = number of turns on the coil area = the cross sectional area of …

Toggle navigation rimstar.org. Electronic Symbols. Video - How to Read a Schematic. The following is an introductory level video for how to read a schematic. A list of symbols is given …

Note that strictly speaking, this isn't actually a hologram. A hologram refers to a thing created using a specific process and involves the "use of laser, interference, diffraction, light intensity …

Using multiple reflector angles. Solar box oven cookers cannot always be tilted to face the sun if the sun is low in the sky. Doing so may cause the cooking pot to tip over, or if the pot is on a …

Toggle navigation rimstar.org Make a razor blade diode A razor blade and a pencil can be used to make a diode for use with a crystal radio, or more popularly, the simpler version called a …

Crystal radios get their power from the radio signal themselves. There's no need to supply batteries or plug into a wall socket. I originally got into them to see how much power they could …

Toggle navigation rimstar.org. How to make a zoetrope. A zoetrope is a fun, educational, and easy to make animation experiment. Spin it and you see a animation appear before your eyes. …

Electric fly swatters (aka zapper rackets) are a cheap and easy way to get a high voltage power supply for some fun experiments. I've used one for powering a Franklin's bell as well as just …