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What magnetic field would be too harsh to sustain life? MRI represents little to no health issue for humans and it is causing a field of about 1.5 Tesla (wiki>MRI). This Physics.SE post indicates that a magnetic field of $10^9$ Gauss ($=10^5$ Tesla) would be way too harsh to sustain. The claim was referenced but the link is now broken. Here is a ...


Your last sentence is the key: defining life really is just finding a dictionary definition that we can agree upon. Biology is something that defies discrete definitions at times: "What is it to be alive?" "What is a species?" maybe even "What is the wild type allele of a gene?" I would recommend not looking at viruses as a challenge to determine if they are ...

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