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Dr. Jessica Shepherd, chief medical officer for Hers, joins ABC News Live to discuss the results of the president’s physical.
[Ethan] wanted to increase the rate of evaporation of his ammonia solution and decided to make an immersion heater. Out of a vacuum tube. This is a non-optimal solution to the problem of heating a ...
[Ethan] wanted to increase the rate of evaporation of his ammonia solution and decided to make an immersion heater. Out of a vacuum tube. This is a non-optimal solution to the problem of heating a ...