/u/volunteertiger's posts in /r/askscience
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Is there a more up-to-date evolution of man diagram than the one that has ~7 or so figures (ie a somewhat official one)? And how far back have we reliable traced those ancestral relationships?
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Do cold and flu viruses travel around the world with the seasons through people or do they stay and mutate and only flare up more during winter?
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Does having a reliable covid vaccine make it easier to make better covid vaccines for future variants that may be resistant to the first vaccine or do vaccines for vaccine resistant variants have to start from scratch?
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Space-time is usually displayed as a plane with objects causing it to sink (ie gravity). Is there any object/phenomenon, real or theoretical, that would cause that ST plane to rise? What would that area of space be like to enter?
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