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A Moment of Science

Posts tagged chemsitry

January 31, 2012

 

open refrigerator

Why Refrigerators Hum

How does the gas coolant that just chilled your fridge make the coils warm? The secret's in the refrigerator's hum.

February 9, 2006

 

paper_clips

Metal Memory

Are you familiar with shape memory alloy? There's no actual memory involved, at least not in computer or human terms.

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