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IPFS News Link • Science, Medicine and Technology

Densest Object on Earth Made From Compressed Copper

• by Brian Wang

This created the densest object on the planet for a brief moment in time.

They used diamond turning machines to make microscopic copper stairs whose surface roughness surpassed optical qualities and precision metrology to measure sample thickness to 1 billionth of a meter. They tracked the copper sample traveling at 50,000 miles per hour using a velocity interferometer — the world's most sophisticated radar gun.

Measuring the compression was one of the greatest challenges.