FIZIKS FACTS

 Speed of the light Hello people, today our topic is the history of the speed of light from Aristotle to Albert Einstien lot of people derive the speed of  light with some interesting experiments let us see them one by one in short  List of the people who found the speed Aristotle Ibn al-Haytham Galileo Sir Isaac newton Romer Fizeau Foucault Albert.A.Michelson Aristotle The first reference of motion of light is found by him he is a greek philosopher he said it is 300BC. He says that light does not take time to travel from one place to another place.  But now we prove it is a wrong statement  Ibn al-Haytham He is the first man who does a systematic experiment to find the speed of light he lived in Egypt he is the father of modern optics. He uses Camera Obscura a pinhole camera that passes different light rays that travel outside of a camera to reach a specific point on the screen. His logic is to be taking finite time to travel a finite distance. The value is jus...

 What is the reason for the shadow appearing in a circle even though it is passed through another shaped object? Introduction        Hello peoples, do you notice that the shadow of an image appears to be a circle when the source or the object move away from each other do you know what is the reason for that you should know that light is not only an electromagnetic wave it also carries information of the source for example astronomer found the property and shape of a star is by the light from the star it carries in the formation of the star. You can do it at the home also take a piece of paper cut it in what shape you want to take a torch light (source) place the torch stationary and move the paper initially it appears in what shape you cut then move the object away it appears in round shape  Reason Now Imagine the experiment I said before instead of the torch we can use the sun now we compare it with a pinhole camera, here hole of the pinhole camera is the ...