In summer, the metal expands cause it’s hot, which is why the Eiffel Tower becomes bigger in hot weather. It can increase by 5.9 inches. (11/15)


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Written by danny

According to researchers from Oxford University, Archerfish can recognize people’s faces. Their accuracy is more than 80%. (10/15)

Do you know that the noise in empty channels is the trace of the Big Bang? It all started with an explosion of light, which expanded in many directions. This noise is part of that explosion. (12/15)