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At first glance, a rock floating on water seems impossible. Rocks are usually associated with something heavy, dense, and firmly settled at the bottom of a river, lake, or ocean. Yet there is one remarkable exception: pumice. This unusual volcanic rock can float on water for surprisingly long periods. Its secret isn’t that pumice is … Read more
Atoms are everywhere. They make up the air we breathe, the water we drink, the screens we look at, and even our own bodies. But there is a problem: atoms are far too small to see with the human eye. So how can scientists study something they cannot directly see? The answer is surprisingly fascinating. … Read more
Lava or volcanic bombs are rounded to ellipsoid masses of lava measuring at least 2.5 inches ejected during a volcanic eruption. They get their aerodynamic shapes while in flight and most cool before landing but some land before they fully solidify. Recent examples of these lava bombs include the 2018 Kilauea eruption in Hawaii and the … Read more