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Magnetism Magnetorheological fluids A magnet in mid-air Pyrolytic graphite in mid-air The Gauss Rifle: A Magnetic Linear Accelerator A Curie-effect heat engine A Magnetic Ring Launcher Electromagnetism An electric motor in 10 minutes Fun with High Voltage A 10 minute railgun A 30 second motor Listening to magnetism Electrochemistry A plastic hydrogen bomb Building your own solar battery Building a Hydrogen Fuel Cell Homemade Batteries Collecting Chemical Elements Radio A quick and simple radio Building a radio in 10 minutes Build a portable crystal radio A radio out of household items A simple AM transmitter The Three-Penny Radio Thermodynamics Simple heat engines World’s simplest steam boat A simple rocket engine A Film Can Cannon A metal that melts in hot water A room temperature liquid metal alloy A simple solar powered heat engine Homemade Ice Cream Aerodynamics A Bernoulli levitation ball A Homemade Vacuum Pump A Classic Propellor Toy Light and optics Simple laser communicator Make a spectroscope from a CD Making permanent rainbows The impossible kaleidoscope Make your own 3D pictures Make a solar hotdog cooker A solar powered marshmallow roaster Exploring invisible light A high resolution spectrograph Time-lapse photography High speed photography Stacking for high depth of field Biology Extracting DNA in your kitchen Photography through the microscope Video through the microscope Listening to Electric Fish Using a video camera as a microscope Mathematics Kaleidocycles A Geodesic Dome A Homemade Microgram Balance Computers and Electronics A Computer Controlled Transmitter A Free Space Laser Data Transmitter Fun With Solderless Breadboards A Simple 1 Watt Amplifier Store Magnets and Levitation Crystal Radios and Transmitters Lasers, Lenses, and Diffraction Gratings Fusible Alloys, Heat Engines, Steamboats Books Chemical Elements My Science Books Gonzo Gizmos Return of Gonzo Gizmos Culinary Reactions Why There’s Antifreeze In Your Toothpaste Electronics For Artists Why Is Milk White? Elements Vault Sister Sites Kitchen Science Ingredients Very Tiny Things A Simple Trick of the Light My Science Blog Toys I Bought for Myself Social Media Google+: SimonField Facebook: simon.quellen.field Twitter: sqfield Make toys at home with common household materials, often in only a few minutes, that demonstrate fascinating scientific principles. Send mail to Simon Quellen Field via...