Video showing how a battery-magnet-wire motor creates a rotating electro magnetic field. Watch the hanging bar magnet react to the rotations. You need a battery, magnet & copper wire.
Just updated your iPhone to iOS 18? You'll find a ton of hot new features for some of your most-used Apple apps. Dive in and see for yourself:
How To:
Fix Dead Lithium-Ion Batteries That Won't Hold a Charge Anymore
How To:
Build an analog light organ (a colorful sound-to-light circuit)
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Infrared LEDs Protect Your License Plate Number from Police Cams
How To:
DIY Stick Welder from Old Microwave Parts
How To:
Hack a laser pointer into a burning laser
How To:
Make an LED or a light emitting diode
How To:
10 Unique & Practical Ways to Repurpose Your Old Hard Disk Drives
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Build a burning blue/violet laser
How To:
Light a light bulb with a potato battery
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Make a PVC Hand Pump to Move Water, Compress Air, & Create Vacuum
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Make a satellite dish Wi-Fi antenna for free internet
How To:
Hack Christmas Lights for Custom Holiday Lighting Patterns
How To:
Hack Your Mini-Fridge into a Vending Machine to Take Care of Freeloading Friends at Your Next Party
How To:
Hack a satellite dish into a WiFi signal booster
How To:
Make a Powerful Handheld Rocket Launcher from PVC and Sprinkler Parts
How To:
Program Wiimote motion detection in GlovePie
How To:
Build a mini fume extractor
How To:
Secretly record people with your own spy sunglasses
How To:
Make a portable spy scope cellphone camera
How To:
Build a laser tripwire that can trigger anything out of a photoresistor
How To:
Fix Dead Lithium-Ion Batteries That Won't Hold a Charge Anymore
How To:
Build an analog light organ (a colorful sound-to-light circuit)
News:
Infrared LEDs Protect Your License Plate Number from Police Cams
How To:
DIY Stick Welder from Old Microwave Parts
How To:
Hack a laser pointer into a burning laser
How To:
Make an LED or a light emitting diode
How To:
10 Unique & Practical Ways to Repurpose Your Old Hard Disk Drives
How To:
Build a burning blue/violet laser
How To:
Light a light bulb with a potato battery
How To:
Make a PVC Hand Pump to Move Water, Compress Air, & Create Vacuum
How To:
Make a satellite dish Wi-Fi antenna for free internet
How To:
Hack Christmas Lights for Custom Holiday Lighting Patterns
How To:
Hack Your Mini-Fridge into a Vending Machine to Take Care of Freeloading Friends at Your Next Party
How To:
Make a Powerful Handheld Rocket Launcher from PVC and Sprinkler Parts
How To:
Secretly record people with your own spy sunglasses
How To:
Build a laser tripwire that can trigger anything out of a photoresistor
How To:
Build an organic LED (OLED) light
How To:
Install a Pixel Qi screen onto your netbook computer
How To:
Build a mini fume extractor
How To:
Make a portable spy scope cellphone camera
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