Printer Friendly

Lightest material.

Engineers have created the world's lightest material. It's called a microlattice and is made of tiny metal tubes crisscrossed to form a mesh. "The trick is that the tubes are hollow," says Lorenzo Valdevit, an engineer at the University of California The University of California has a combined student body of more than 191,000 students, over 1,340,000 living alumni, and a combined systemwide and campus endowment of just over $7.3 billion (8th largest in the United States). , Irvine. That makes the structure 99.99 percent air.

The material is formed by coating a plastic model of the structure with a thin layer of nickel alloy Noun 1. nickel alloy - an alloy whose main constituent is nickel
nickel-base alloy

alloy, metal - a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten; "brass
, or a mixture of metals. The plastic is then dissolved away from the inside, leaving behind empty metal tubes. "The walt of each tube is only 1/1000th the thickness of a human hair," says Valdevit. The lightweight and spongy spongy /spon·gy/ (spun´je) of a spongelike appearance or texture.

Resembling a sponge in appearance, elasticity, or porosity.
 flexible structure is perfect for use in batteries and shock absorbers.



The world's lightest material has a density (mass over volume) of 0.9 milligrams/ [centimeter.sup.3]. About how many times lighter is it than Styrofoam?

COPYRIGHT 2012 Scholastic, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2012 Gale, Cengage Learning. All rights reserved.

 Reader Opinion




Article Details
Printer friendly Cite/link Email Feedback
Author:Reifsnyder, Cheryl
Publication:Science World
Article Type:Brief article
Geographic Code:1USA
Date:Feb 13, 2012
Previous Article:Watery moon.
Next Article:Animal GPS.

Terms of use | Copyright © 2014 Farlex, Inc. | Feedback | For webmasters