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Speaker 1: Welcome to brain Stuff from house stuff works dot com
Speaker 1: where smart happens. Hi Am Marshall Brain with today's question,
Speaker 1: how do you make clear ice cubes? If you live
Speaker 1: in an area where icicles form in the winter, you
Speaker 1: know that icicles are normally clear and beautiful. There are
Speaker 1: two things that make icicles so perfect. First, icicles are
Speaker 1: made from pure water in the form of melted snow,
Speaker 1: and second, icicles are created in layers. Water drips down
Speaker 1: the icicle and freezes in progressive layers rather than freezing
Speaker 1: all at once, the approach of voids and trapped bubbles.
Speaker 1: If you ever look inside a restaurant ice maker, you'll
Speaker 1: find that it makes ice and layers. Also, cold water
Speaker 1: runs continuously over a plate or a grid where the
Speaker 1: ice is forming, and the ice cubes or ice discs
Speaker 1: in some machines grow in layers. If you would like
Speaker 1: to try creating clear ice at home, start with distilled
Speaker 1: water to eliminate any minerals, and then boil it to
Speaker 1: eliminate air dissolved in the water. Make the cube small
Speaker 1: or thin to get closer to the way that icicles
Speaker 1: are formed. Do you have any ideas or suggestions for
Speaker 1: this podcast? If so, please send me an email at
Speaker 1: podcast at how stuff works dot com. For more on
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