The best sandblasters make quick work of tough jobs like stripping paint or cleaning machinery. Learn the features to look for and see our top picks.
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Three Tiny Glass Beads From The Lunar Surface Suggest Volcanoes Were Still Erupting On The Moon While Dinosaurs Were Roaming The EarthThe glass beads, also known as impact glasses or microtektites, can form on the moon when meteorites smash into the moon at high speeds, blasting chunks of lunar crust above the moon's surface.
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