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October 20, 2020

In order to answer this question, we first need to define what we mean by up and down in space. And also acknowledge that the only reason ‘up and down’ exists as a binary is because we created them as humans.What is up and what is down?Since we are held to the surface of the

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October 20, 2020

How to define a space movieWhen we talk about space movies, we can mean one of two things: movies that are simply set in space and science fiction movies.  These are so different in that movies set in space can have the capacity to be incredibly accurate, but science fiction movies are designed to be

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October 20, 2020

The real question should be: what is the speed of gravitational change propagation? This might be a little confusing at first, but this answer will help to make sense of the topic.Other questions that ariseSince this question is quite a big one to ask, there are also some other questions that it uncovers alongside it.

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October 20, 2020

Actually, the wind is not the only factor that causes ocean currents. It is true that the wind plays a role, but it is only a small one compared to some of the other variables involved.  On top of this, the factors that we are about to explain, including wind, act in different ways on

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October 18, 2020

The simple answer is no, gravity does not extend out forever. Although there is a theory that states that it does.Newton’s Law of Universal GravitationNewton’s law states that the force of gravity on one mass due to another mass will depend mainly on their separation. This separation is represented as r where the dependence is

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October 11, 2020

Conversely to the question, the moon is actually not that bright, especially when we compare it to other astronomical objects in space. The reason that the moon appears so bright in our night sky on earth, is because we are comparing the brightness of it to the object around us that are receiving absolutely no

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October 11, 2020

In a short answer: light is not in fact pure energy. It is, however, true that light has no mass. But the fact that light has no mass does not mean that light is pure energy. Light is actually made up of objects called photons. This can be compared to other fundamental quantum objects since

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October 11, 2020

On the contrary, gravity is actually the weakest force. This is true when it comes to the fundamental forces anyway. If you order the four fundamental forces from weakest to strongest, it would look like this: gravity, weak nuclear force, electromagnetic force, and the strong nuclear force. If we are to zoom in on two

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October 11, 2020

Logically, there can be no darkness without the existence of light. Think of a bright day accompanied by the shadows that the sun casts when blocked by something like a streetlamp.  Darkness is simply the absence of light, so it follows that it travels at the speed of light. The absence of light, or darkness, is

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October 5, 2020

A lot of scientist will say that astrology does not ‘work’. But believers in astrology will tell you that it is real and that it does work. The real answer is that it depends what you mean by the word ‘work’.  Both answers and groups of people are technically right, depending on their definition of ‘work’.

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