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Sound needs air molecules. In the vacuum of space, two ships could explode side by side in complete silence.
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Kısaca
Sound needs air molecules. In the vacuum of space, two ships could explode side by side in complete silence.
Explosions in space movies are loud, but in reality sound cannot propagate in vacuum. Sound needs a medium to carry vibrations, and space lacks it.
There is a practical suggestion for those who have to chop onions: You can avoid crying by chewing gum.
Shape memory alloys can be bent and crushed, then return when heated. It is not magic, it is a phase change in the crystal structure.
The world's first SMS was sent on December 3, 1992. The message was only two words.
−273.15°C looks like a target, but physics says you can approach it, not reach it. As you cool, the remaining energy is harder to remove; each step costs more and the wall retreats.
Honey does not spoil because it has very little water and is naturally acidic, leaving microbes no room. Archaeologists have found edible honey traces in ancient containers.
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