Wireless Electricity (Tesla Coil)
Materials required: Enamelled copper wire 35 SWG Enamelled copper wire 25 SWG Transistor 2N2222A or PN2222A Resistor 22K LED Battery 9V Switch (Slider type) Card Board Transparent Tape Connecting wires…
HOW TO MAKE A HOMOPOLAR MOTOR
What you need: Copper wire 27 SWG 1.5 feet length Neodymium magnets (round) 2-pcs Battery AA-size 1-pcs Wire cutter Submitted by: Prashant Kumar Sinha
HOW TO MAKE A TOY PHONE
What you need: 2 plastic cups A thread roll A match stick A compass A pair of scissors Submitted by Khushant Kumar Gola
Drinking straw hydrometer
Take a drinking straw about 20 cm long. Seal one end with wax, and introduce some lead shot or fine sand until it floats in a vertical position. Then drop…
Mystic Roller- a test for Newton’s laws
Materials required: A Cylindrical Plastic Jar Rubber band A Heavy Nut Thread Wire steel or copper Pliar scissors A nail to make holes Video|Step 20 : Now we are done,…
Communication System
Denice is asking to his uncle Bean, why mobile phone towers are usually made so high while we can use intercom phone without using such big towers? Do you know…
THE KUIPER BELT
THE KUIPER BELT The Kuiper Belt: The issues surrounding the discovery of astrophysical objects can be complex. Sometimes these objects get discovered by chance and on other occasions, their existence is…