Uploaded August 2017 | Updated September 2026, 1 week ago

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Some say water can’t curve. But as anyone who has seen tides will know - it happens not just once a day but two times. And why this high/low tides happens two times every day have people thought about for a long time.

Links below to "official" explanation for the two high and low tides each day.

Video explanation: youtube.com/watch?v=pwChk4S99i4
A very lengthy description and what many get wrong: https://www.lhup.edu/~dsimanek/scenario/tides.htm
The math behind tides: https://web.njit.edu/~gary/320/Lecture12.html