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40,619 published items in this category and its subcategories.

Why is ice solid but floating?
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Why is ice solid but floating?

We usually know there are three states of matter, solid, liquid and gaseous, with the atoms in the solid denser than the liquid and the atoms in the liquid thicker than…

December 12, 2019
The photo shook in Alaska
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The photo shook in Alaska

The heartbreaking image of young polar bears scrambling for plastic containers shows the dreadful human impact on the environment.

December 12, 2019
The physical laws behind the shot
Discover science

The physical laws behind the shot

Football is a sport that requires speed, strength, endurance and strategy, but surely good ball control also requires physical understanding.

December 11, 2019