Brainiac75

Can I measure the grade of a magnet?

Monster magnet meets magnetic fluid...

Buyer's Guide: Your first neodymium magnet

New LASER Power Record on my LPM?!? | LaserCube Ultra 750K Subs Special

New King of Magnetic Power? | Electromagnet vs. Neodymium Magnet

Desert Sun Lamps! | My least healthy lights yet?

Don't use strong lasers without this - easy to make!

YELLOW LASERS?!? Finally - after 25+ years of collecting!

TRUE YELLOW LASER or not? 25+ years wait over? // Valkyrie 573 donated by Tinker Lasers

Upgrading Fiber Optic Lamps to LASER Brightness!

How [NOT] to MAX test a power supply!

Monster magnet meets subwoofer...

Laser COLOR limits data capacity?!?

Handheld DNA eraser?!?

Smartphones measure MAGNETISM in 3D?!? | Gaussmeter in your pocket?

LASER Hair Blaster | How strong is this "Class 1" laser?!?

Hidden Hazards of Halogen Lamps

MAGNETIC PAINT | Cheaper and easier than Ferrofluid and Ferripaste?

Mystery RADIOACTIVE Source | Can we identify it?

How radioactive are bananas and other radioactive foods?

LASER underpowered by its power supply? | First TTL/PWM Arduino attempt

Macho Set of Magnets

How bad is 91W gear for an expensive 135W lamp? Testing SOX 135W on 91W, 135W and 135/180W ballast

THIS LAMP SOXs! "Yellow" tech of bright metal vapor lamp. Beats modern LEDs in brightness per watt?

Messing Up the Fluorescence of Tonic Water - in several ways...

Smartphone vs. Real Meters for Sound and Light Measurement?

Monster magnet meets monitors...

Build in 3D with LIGHT! | Science of Anycubic Photon Mono X

Metal Meltdown | Brainiac75

Unboxing a MONSTER | Extreme neodymium magnets

How bad is this cheap laser power meter? | HWLPM Mini 10W vs. Sanwu Tracer 20W

Even STRONGER Garden Laser?!? | Laser classes explained

Can I measure the grade of a magnet?

Bananas can detect invisible light?!?

GLOW-IN-THE-DARK: Can you change the color?

Bad Beams? | How divergent are lasers?

Radioactive Mushrooms vs. Affordable Gamma Spectrometer | This beats ALL Geiger counters!

Buyer's Guide: Grades of Magnets

Infrared eBay LASER with weird 10-in-1 beam? Cheap and powerful though!

Metal in Food and Drinks | Ban incoming!

Monster magnet meets blood...

NEW RECORDS! Testing 6x4" neodymium magnet

Power of Plasma Balls Visualized | Don't wear a ring... Jumping won't help!

FAULTY Flicker-Flame Light Bulb? Amazing in slow-motion!

Mystery of the Demagnetizer | What's inside? How does it work?

BURN IT! | Ferrofluid vs. Ferripaste

Are cheap UV detection cards any good?

Monster magnet meets aluminum can...