News tagged with thermal contraction

MESSENGER spies a soccer ball on Mercury

Olé, Olé, Olé! Good news World Cup fans, a soccer ball has been found on Mercury! This 'soccer ball' is actually an old impact crater in Goethe Basin that has been flooded with volcanic lava flows, resulting in a 'ghost crater'. The pattern inside is a network of nar ...

Jun 27, 2014
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Materials that shrink when heated

One common reason that people with fillings experience toothache is that their fillings expand at a different rate to the original tooth when, for example, drinking a hot drink. Contrary to intuition, however, ...

Feb 09, 2012
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