Ice cubes float in water because they’re less dense than the liquid. But a newfound type of ice has a density nearly equal to what’s in your water glass, researchers report in the Feb. 3 Science. If ...

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Woman drinking water while out on a run - fast-stock/Shutterstock We may receive a commission on purchases made from links. When the sun is beating down in the heat of summer, taking a sip of ice-cold ...