How can the heart be strong enough to pump blood up your legs against gravity?

The basicsThe heart does not actually work on its own to pump blood all the way around the body, this is because there would be a high amount of pressure at the area of the heart and a significantly lower pressure at the extremities.  So, imagine blood being pumped away from your heart to the … Read more How can the heart be strong enough to pump blood up your legs against gravity?

Does the influence of gravity extend out forever?

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 … Read more Does the influence of gravity extend out forever?

Can you make a shock wave of light by breaking the light barrier?

Can you make a shock wave of light by breaking the light barrier just like supersonic airplanes break the sound barrier?The answer to this is twofold, because it can be answered both yes and no. It depends on the material that you are in.Can anything travel the speed of light?Yes, particles that are considered quantum … Read more Can you make a shock wave of light by breaking the light barrier?

What is it about a full moon that makes people go crazy and commit crimes?

There are not really any solidly compelling pieces of proof that show that a full moon can make people crazy and commit crimes. But the myth surrounding this claim is greatly interesting.  Since the term ‘lunacy’, a word we use to mean ‘mad’ or ‘crazy’, is derived from ‘Luna’ meaning ‘moon’, the origins of this idea … Read more What is it about a full moon that makes people go crazy and commit crimes?

Since gravity is unlimited, can we use it as an infinite energy source?

We cannot use gravity as an infinite energy source. This is because gravity cannot actually be used as an energy source at all. Since gravity is a force, it is not an energy source.  Energy and force are two different things and should not be confused. Where energy can be described as being a property in … Read more Since gravity is unlimited, can we use it as an infinite energy source?