This awesome how to explains the construction of a DIY USB-charged flashlight! The coolest part is that there are no batteries! Two super capacitors hold the charge from the USB and release it to the LED light at the touch of a button!
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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:
Spice Rack Explosives:
How to Make Gunpowder with Salt & Sugar
How To:
Turn Water into Fuel by Building This DIY Oxyhydrogen Generator
How To:
Turn a Microwave Oven Transformer into a High Amperage Metal Melter!
How To:
Build Your Own Mini Altoids Guitar Amp for About $5
How To:
Make Slow Burning Fuses from Yarn, Sugar, & Potassium Nitrate
DIY Polygraph Machine:
Detect Lies with Tin Foil, Wire and Arduino
How To:
DIY Rocket Propellant! How to Cook Solid Rocket Fuels Using Common Household Ingredients
How To:
Make a Hydrogen Fireball from Aluminum Foil and Toilet Bowl Cleaner
How To:
Weapons for the Urban Guerrilla: Make a Taser from a Disposable Camera
How To:
Make Solid Rocket Fuel at Home with Old Newspapers
DIY Blacksmithing:
Forge Your Own Steel at Home!
Bat Science:
How Realistic Are Batman's Gadgets in Dark Knight Rises?
How To:
Build Your Own Projection Microscope with a Syringe, Laser Pointer, and Drop of Water
Dragon Safari:
The Incredible Metamorphosis from Nymph to Dragonfly
Supercool Science Trick:
How to Turn Water into Ice on Command
How To:
Build a Long Range Laser Spy System for Eavesdropping on Your Neighbors
News:
This Real-Life, Working WALL-E Robot Is Absolutely Perfect (And Built Entirely from Scratch)
How To:
Use a Funnel and Butane Torch to Make a Huge Corn-Flour Fireball
10th Time's the Charm:
Success and Failures of Making a Jam Jar Jet Engine
Inception in Real Life:
Make These Lucid Dreaming Glasses and Take Control of Your Dreams
Spice Rack Explosives:
How to Make Gunpowder with Salt & Sugar
How To:
Turn Water into Fuel by Building This DIY Oxyhydrogen Generator
How To:
Turn a Microwave Oven Transformer into a High Amperage Metal Melter!
How To:
Build Your Own Mini Altoids Guitar Amp for About $5
How To:
Make Slow Burning Fuses from Yarn, Sugar, & Potassium Nitrate
DIY Polygraph Machine:
Detect Lies with Tin Foil, Wire and Arduino
How To:
DIY Rocket Propellant! How to Cook Solid Rocket Fuels Using Common Household Ingredients
How To:
Make a Hydrogen Fireball from Aluminum Foil and Toilet Bowl Cleaner
How To:
Weapons for the Urban Guerrilla: Make a Taser from a Disposable Camera
How To:
Make Solid Rocket Fuel at Home with Old Newspapers
DIY Blacksmithing:
Forge Your Own Steel at Home!
Bat Science:
How Realistic Are Batman's Gadgets in Dark Knight Rises?
How To:
Build Your Own Projection Microscope with a Syringe, Laser Pointer, and Drop of Water
Supercool Science Trick:
How to Turn Water into Ice on Command
Dragon Safari:
The Incredible Metamorphosis from Nymph to Dragonfly
How To:
Build a Long Range Laser Spy System for Eavesdropping on Your Neighbors
News:
This Real-Life, Working WALL-E Robot Is Absolutely Perfect (And Built Entirely from Scratch)
How To:
Use a Funnel and Butane Torch to Make a Huge Corn-Flour Fireball
Inception in Real Life:
Make These Lucid Dreaming Glasses and Take Control of Your Dreams
10th Time's the Charm:
Success and Failures of Making a Jam Jar Jet Engine
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