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.
Some impact craters on the moon measure more than 600 km (375 miles) across. On April 11th, 2006 the large Valley of the Sky iron meteorite, measuring 376 by 38 by 36.8 centimetres sold at auction for $93,000 (USD). About 500 to 600 meteorites fall to Earth each year. Most fall into the sea or in unpopulated areas (lucky us). The largest meteorite ever found is the Hoba iron meteorite which was found in 1920 on the Hoba West Farm, near Grootfontein, Namibia. Although it's the largest meteorite ever found, the Hoba left no visible crater. It is thought to have landed over 80,000 years ago and was found by a farmer ploughing his land.