Recent content by Gustav S

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    High School Is a Black Hole Really Just a Spherical Structure?

    Watch Interstellar, the principal is the same, but with black holes =)
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    High School Height measurement on other planets

    If you measure the height of a mountain, you compare it's height with the sea level. But on let's say mars, how do you measure height when there is no sea to compare with? For example: Olympus Mons is considered to be the tallest mountain or vulcano in the solar system, but what is the level on...