https://youtu.be/weR_GqGxkOY Know when to throw--sometimes things go bad without any outward signs--like rotten odors. A new paper -based test could help. It detects chemical markers of spoilage in... read more
Can you light a match on the moon? The answer isn't as obvious as you may think. Click on this link to find out. read more
https://youtu.be/_rJOSDgDG0A The universe is bustling with matter and energy. Even in the vast, apparent emptiness of intergalactic space, there’s one hydrogen atom per cubic meter. But is there... read more
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