More from Theodore Gray

Gray Matter: In Which I Set Myself On Fire
DIY

Gray Matter: In Which I Set Myself On Fire

By Theodore Gray

Gray Matter: In Which I Fully Submerge My Hand in Liquid Nitrogen [Video]
DIY

Gray Matter: In Which I Fully Submerge My Hand in Liquid Nitrogen [Video]

By Theodore Gray

Gray Matter: DIY LEDs
DIY

Gray Matter: DIY LEDs

By Theodore Gray

Gray Matter: Batteries Out of Thin Air
DIY

Gray Matter: Batteries Out of Thin Air

By Theodore Gray

Gray Matter: DIY X-Ray Photos
DIY

Gray Matter: DIY X-Ray Photos

By Theodore Gray

A person melting diamonds in a ring with a torch.
DIY

Gone in a flash: burning diamonds with a torch and liquid oxygen

By Theodore Gray

On the left, a steel washer and a small peace-sign earring made out of tin. On the right, a round, carved piece of metal that's a microturbine for a water pump.
DIY

Carve steel with salt water, electricity, and a tin earring

By Theodore Gray

A fish sculpture made out of mercury that's been frozen by liquid nitrogen.
DIY

Sculpting in solid mercury, with some help from liquid nitrogen

By Theodore Gray

Wolfram Co-Founder On Why Wolfram|Alpha Doesn’t Need to Kill Google
Science

Wolfram Co-Founder On Why Wolfram|Alpha Doesn’t Need to Kill Google

By Theodore Gray

An iPhone plugged into a battery made out of apples and pennies.
DIY

Gray Matter: Apple juice

By Theodore Gray

A hydrogen-filled soap bubble exploding when touched by a lighter.
DIY

Gray Matter: Blowing (up) hydrogen bubbles

By Theodore Gray

A black charcoal grill with its lid on, billowing flames. There's a vacuum cleaner attached to its underside.
DIY

Gray Matter: Making glass in a grill

By Theodore Gray

A .44-caliber bullet impact.
DIY

Make your own ammo

By Theodore Gray

A person breaking the tail of a Prince Rupert's glass drop, causing the entire piece to explode.
DIY

Gray Matter: Shattering the strongest glass

By Theodore Gray

A white man with graying hair and a straw hat standing in a steaming hot tub on a prairie in front of a canvas painted with palm trees.
DIY

Gray Matter: The instant hot tub

By Theodore Gray

A 1-ounce bar of fine gold, with the Credit Suisse name on it.
DIY

How to make convincing fake-gold bars

By Theodore Gray

A person grinding real titanium against a grindstone, producing white sparks, and also grinding steel, producing yellow sparks.
DIY

Gray Matter: Titanium or plain ol’ steel?

By Theodore Gray

Colorful flames on wood.
DIY

Gray Matter: How to make colored fire

By Theodore Gray

Burning steel wool against a green background.
DIY

Gray Matter: Burning metal

By Theodore Gray

The blue flame of a blowtorch heating up a block of quicklime.
DIY

Gray Matter: How to make a lamp out of lime

By Theodore Gray

A spinthariscope.
DIY

Gray Matter: Atoms and eves

By Theodore Gray

A periodic table poster.
DIY

Gray Matter: An elemental fascination

By Theodore Gray

An explosion of fire and smoke creating table salt to season a bag of popcorn in a lab.
DIY

Gray Matter: Making salt the hard way

By Theodore Gray

Ice cream made with a fire extinguisher in a goblet next to a napkin and a spoon, with dry ice vapor all around.
DIY

Gray Matter: Dry ice cream

By Theodore Gray

Heavy ice cubes at the bottom of a glass of water, and regular ice cubes floating on top.
DIY

Gray Matter: Ice capades

By Theodore Gray

A model rocket with a red body and gold tip and fins, with flames coming out the back, against a black background.
DIY

Gray Matter: Rocket food

By Theodore Gray

A person wearing white work gloves striking a match on a light brown surface against a blue background.
DIY

Making a perfect match

By Theodore Gray

A tungsten lightbulb burning in a lab, with helium pumped into the makeshift bulb.
DIY

Make your own lightbulb

By Theodore Gray

A person purifying silicon in a glass bowl. Top: burning magnesium in a mushroom cloud of white smoke; middle top: burning hydrogen as a flame; middle bottom: burning silane gas as white bursts; bottom: falling silicon particles.
DIY

Making silicon from sand

By Theodore Gray

A person using batteries to anodize a titanium birdhouse.
DIY

Titanium in technicolor

By Theodore Gray

A number of objects covered in gold, including a baseball.
DIY

Make everything golden

By Theodore Gray

A person pouring an indium alloy into a spoon mold.
DIY

Gag with a spoon

By Theodore Gray

A wardrobe from the Philadelphia Museum of Art, with sulfur inlay.
DIY

The worst way to inlay

By Theodore Gray

The Amazing Rusting Aluminum
Aviation

The Amazing Rusting Aluminum

By Theodore Gray

From left to right: a pile of white aluminum powder and a power of black magnetite powder; a crucible over a heat source; thermite burning; a solid welded T-handle on a bolt.
DIY

Making steel with beach sand

By Theodore Gray

Patent Nonsense
Science

For that Healthy Glow, Drink Radiation!

By Theodore Gray

Top left: a person using a magnet to pull magnetite grains out of sand. Top right: a person using a smaller magnet to pull more magnetite grains out of finer sand. Bottom left: three lines of sand and magnetite of varying purity. Bottom right: magnetite grains on a piece of paper with a magnet underneath, with the grains showing the lines of the magnetic field.
DIY

Uncovering a natural (magnetic) attraction

By Theodore Gray

A white bowl on a small tablecloth-covered table against a brown background, with a small white object hovering above it.
DIY

Ignorance = maglev = bliss

By Theodore Gray

A firebrick-and-silicon-carbine furnace enclosure inside a microwave with red-hot silver inside it.
DIY

Smelting in a microwave

By Theodore Gray