Recent content by avito009

There are two ways by which absolute motion might be detected: by measuring motion with respect to a beam of light, and by making use of inertial effects that arise when an object is accelerated. So why MichelsonMorley experiment showed the first method to be unworkable? Einstein's special...

Light travels more slowly through light-transmitting substances such as air or glass, otherwise no lens would refract light. so does this mean that the speed of light is not a universal constant?

If the Earth moves in east direction then which direction will ether move in? assuming there is ether?

Correct me if I am wrong. The beam that moves in the direction of the Earth's rotation should travel faster?

But how do you make sure that one of the beams is going in the same direction as the Earth's motion?

By measuring the speed of the light beams through the inferometer michelson morley tried to explain the existence of ether. This was done by measuring light beams's speed. The beams were in different direction. Did they want to say that the beam in the direction of the movement of the Earth...

Does this have any relation to the fact that the smallest distance in space time is an ellipse? its not a straight line?

If the orbit of the Earth has only one focus which is the Sun then why can't it move in a circular path. Since a circle has only one focus and that is at the centre. Why is the sun the only focus when the path of Earth is an ellipse?

When the temperature in a city is lower and one has a bath in the bathroom then why does more vapour get created? More vapour than it would be created when the temperature is higher?

I think i know somewhat what happens but correct me if i m wrong. the cd drive shins a laser that is red in color and the blu ray disc reflects a blue laser beam. So originally the cd player shines a red beam of laser but blue beam is reflected from the blu ray disc

So can we use this analogy? If you've ever had to squeeze a certain amount of text on a single sheet of paper (maybe to make a poster) and found it difficult to get everything on, you'll know there's a simple solution: you just make your words a bit smaller (lower the font size). The same idea...

So you mean that inside the CD player, there is a miniature laser beam? but if there is a laser beam inside the cd player then is this laser red or blue and how does blu ray have blue laser? So is the laser inside the disc? or is it in the cd player?

blu ray disc has a shorter wavelength than a red laser (650nm), but how does having shorter wavelength effect storage space? answer in laypersons terms.

On further reading: I found that a dog can have a runny nose because it has sweat glands in the nose. It opens its mouth to keep his body temperature low. It helps it cool its body. But yes a dog can have a cold but that's not the reason for it to pant. As dogs grow older their immunity decreases.

Animals get wet in the rain and still don't fall sick, how is that?. Let's take a stray dog. I have noticed that a dogs nose keeps running and he has to breathe though the mouth. So his immune system has some flaws. Can a human being become so immune just like animals? Tarzan had good imunity...