Category: Space & Navigation

How do you find the surface area of annulus?

Annulus Formulas in terms of radius r and π Outer circumference of an annulus: C1 = 2πr1 Inner circumference of an annulus: C2 = 2πr2 Surface area of the space enclosed by the outer circle. A1 = πr12 Surface area of the space enclosed by the inner circle. A2 = πr22 Surface area of the

Do planets closer to the sun have a shorter year?

Planets that orbit closer to the Sun than Earth have shorter years than Earth. Planets that orbit farther from the Sun than Earth have longer years than Earth. This happens for two main reasons. If a planet is close to the Sun, the distance it orbits around the Sun is fairly short. Why do planets

Who invented the drawing compass?

The geometric and military compass of Galileo belonged to this class of instruments. Invented in Padua in 1597, the instrument is also linked to Galileo’s activity (fig. 7) in the Accademia Delia (fig. 8), founded in Padua to provide mathematical instruction for young noblemen training for a military career. What is a drawing compass called?

What does circumscribed mean in geometry?

In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius. What is circumscribed in geometry terms? A geometric figure which touches only the vertices (or other extremities)

Why does Phobos rise in the west?

It is so close that it orbits Mars much faster than Mars rotates, and completes an orbit in just 7 hours and 39 minutes. As a result, from the surface of Mars it appears to rise in the west, move across the sky in 4 hours and 15 minutes or less, and set in the

How long is the movie hidden figures?

How accurate is the film Hidden Figures? The visual blog Information is Beautiful deduced that, while taking creative license into account, the film was 74% accurate when compared to real-life events, summarizing that “the crux of the story is true, [and] any events that didn’t actually happen are at least illustrative of how things really

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