“You jump,I jump!”
This scene in the movie “Titanic” touched many people. It is known that the tragedy of the Titanic hit the iceberg, but there are many reasons for the sinking of the ship, among which A statement Although the latest steel used in the Titanic is sturdy, it lacks toughness, so it immediately breaks through the impact of an iceberg.
However, the team of Professor Guo Chunlei from the University of Rochester recently created a “will not sink Metal, this metal can float on the surface of the water, even if the metal surface is openThe hole will not sink into the water. The research results have been published in the academic journal ACS Applied Materials and Interfaces On.
According to Professor Guo Chunlei, this is a technique that uses lasers to make materials hydrophobic. The researchers used a femtosecond laser (a laser that fires in pulses, often used in myopia correction surgery) to etch a large number of fine lines with nano-structures on the metal surface that trap large amounts of air for hydrophobicity. Allows the metal to float on the surface of the water.
