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

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If there are two identical rockets in vacuum, one stationary and one somehow already moving at 1000kmh, and their identical engines are both ignited, would they have the same change in velocity?

2298 upvotes

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With only 2 ears, how can we determine the one specific location of a sound?

1 upvotes

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How true are reports that there are currently various strains of the coronavirus with vastly differing lethalities spreading across the world? Or does prevailing evidence suggest that the virus' behaviour is relatively homogenous globally?

1 upvotes

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Should we expect Covid-19 vaccines to be effective in minimizing transmission? Have there been vaccines that reduce symptoms but cause vaccinated persons to remain equally infectious?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If there are two identical rockets in vacuum, one stationary and one somehow already moving at 1000kmh, and their identical engines are both ignited, would they have the same change in velocity?	2298
With only 2 ears, how can we determine the one specific location of a sound?	1
How true are reports that there are currently various strains of the coronavirus with vastly differing lethalities spreading across the world? Or does prevailing evidence suggest that the virus' behaviour is relatively homogenous globally?	1
Should we expect Covid-19 vaccines to be effective in minimizing transmission? Have there been vaccines that reduce symptoms but cause vaccinated persons to remain equally infectious?	1