Recent Examples of etch from the Web. 1  These huge, $100 million systems essentially etch tiny transistor patterns onto silicon at nanometer scale. â , sandiegouniontribune.com, ASML's Cymer Technologies hits milestones to deliver smaller, faster chips, 29 Aug. 2017.
Hoba: The World's Largest Meteorite. Hoba Meteorite - world's largest: Photograph of the Hoba Meteorite taken by Giraud Patrick on August 13, 2006. Hoba weighs about 66 tons and is nine feet long by nine feet wide by three feet thick. Image used under a GNU Free Documentation license.
The Incredible Barringer Meteor Crater of Arizona. About 50,000 years ago, a rock fragment broke away from the asteroid belt and hurtled towards earth. The rock, composed of nickel and iron, was about 50 meters across and weighed 300,000 tons. It was travelling at 12.8 kilometers per second.