You might think of the passage of time as something that moves in a particular direction – from left to right, front to back, or clockwise around a dial. As MinuteEarth explains, there’s no uniform way of looking at the direction of time, and how humans even represent it differently based on the way their language is written.
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Sound doesn’t travel all that far in the air or on the surface of the Earth. So how is it possible the sound of explosives detonated off the coast of Australia traveled half-way around the globe to be heard in Bermuda? MinuteEarth dives into the physics that allow sound to travel so much further at the bottom of the ocean.
While certain words, objects, and even animals have similar traits, it turns out that they didn’t always evolve from the same origin, and sometimes just organically arrived at a similar point. MinuteEarth explains how likenesses between things aren’t always what they seem.