Planet Earth is spinning at a rate of 0.0007 rpm. Easy to calculate: One revolution per day, divided by 24 to get revs/hr and then by 60 to get revs/min = rpm. As for linear speed, it depends on where ...
My column leads off, as usual, with the reminder that plastics are not toxic—none of them. The public image is the opposite, as shown last week by the McDonald’s announcement that it will stop using ...
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