/u/karlzhao314's posts in /r/askscience

Year:

Why can't we create a perfectly straight beam of light with optics? What makes lasers so special?

16 upvotes

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Why can alloys have very different properties than their base metal and other alloys of the same metal despite using very small amounts of alloying elements?

3 upvotes

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How fast could we send a rocket for supplies or evacuation to the ISS in response to an emergency?

1 upvotes

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Are there individual differences to the spectrum of light that we can perceive as visible light?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why can't we create a perfectly straight beam of light with optics? What makes lasers so special?	16
Why can alloys have very different properties than their base metal and other alloys of the same metal despite using very small amounts of alloying elements?	3
How fast could we send a rocket for supplies or evacuation to the ISS in response to an emergency?	1
Are there individual differences to the spectrum of light that we can perceive as visible light?	1