/u/SpammyMcSpammington's posts in /r/askscience

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If matter cannot be created or destroyed, does that mean that there has always been the same amount of matter in the universe? Why?

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If climate change were to affect countries’ cities in the future, what kind of technology could be used to prevent flooding of cities such as Miami or New York?

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Why are humans unable to see wavelengths outside the visible spectrum?

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Why do the meters (altitude, speed, etc.) on some early spacecraft and rockets' control panels begin to spin and move violently when the craft reaches extremely high speeds?

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What makes positive and negative electricity different?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If matter cannot be created or destroyed, does that mean that there has always been the same amount of matter in the universe? Why?	1
If climate change were to affect countries’ cities in the future, what kind of technology could be used to prevent flooding of cities such as Miami or New York?	1
Why are humans unable to see wavelengths outside the visible spectrum?	1
Why do the meters (altitude, speed, etc.) on some early spacecraft and rockets' control panels begin to spin and move violently when the craft reaches extremely high speeds?	1
What makes positive and negative electricity different?	1