The Law of Gravity Define

Galileo in 15th century, discovered that any object falling to earth, fall at the same rate of time . He mentioned that a cannon ball and a feather, if dropped from the same height will touch the ground at the same time provided there is no air resistance. He had difficulty explaining it for quite a long time and also unable to prove it visually.

4 centuries later with the current technology it has been experimentally demonstrated. 

Its a super visual treat to watch the video 👌
Please show it to your children .👇

Why do we feel cold when getting in and out of swimming pool?

We will feel cold when jumping into a pool as the skin temperature will drops rapidly. We will lose heat through our skin to the pool. After a few minutes, we will not feel cold as our body temperature will be similar to the pool temperature.

We will also feel cold when getting out of a pool. The body produce heat to keep us warm while we were in the pool. Once we leave the pool, there will be water on the skin. The body heat is transfer to the water. The water droplet will gain energy and evaporate. Due to the evaporation, our body will lose heat and we will feel cold as a result.