Sound the alarms: Water doesn't always freeze when it should. In fact, you can chill water and most other liquids below the temperatures at which they usually freeze. Scientists once cooled water down to the frigid temperature of -51°C, and the H2O remained liquid, at least for a fraction of a second, before it flash-froze. But forget scientists—you can use this phenomenon, called supercooling or undercooling, to make instant slushies—even beer slushies.
A new study released earlier this week in the journal Nature Nanotechnology may be a major step towards making desalinated water—water in which salt is removed to make it safe for drinking—a viable option for more of the world. Researchers from the University of Manchester modified graphene oxide membranes, a type of selectively permeable membrane that allows some molecules to pass while keeping others behind, to let water through while trapping salt ions. It's essentially a molecular sieve.
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Congratulations! So, you've decided to become a better sweeper. Your timing couldn't be better—spring officially began this morning, which makes it a great time to get rid of those winter dust bunnies. And reading this article is your first step towards having cleaner floors. To find the scientifically best way to wield a broom, we spoke with two cleaning experts.