Replacing of batteries by NASA astronauts Today NASA astronauts removed the 6 nickel-hydrogen batteries and replaced them by 3 lithium ion batteries. One of them was shorted in 2019. These batteries was useful for future space works. This news was officially twitted in their twitter account. Give your opinion in comment box.
Why Muscles breakdown due to exercise Many of the people go for regular exercise but sometimes they feel that their muscles are paining they think this is due to over exercise but it is wrong, there are many factors for muscle paining. 1. Muscle pains in beinging of exercise There are many people who even start exercise but all of sudden they start to do exercise, they don't even follow any guidelines by experience people. These people's body in stable state before they are going to start exercising when they start exercises their muscles are disturbed due to these disturbance some of the muscles would breakdown and some of them are replaced their positions due to this their muscles get pained. 2. Muscle pain due to over weight. During exercises people going to lift weights in gyms or in home by any means, if they lift particular weights doesn't problem but sometimes they lift weights behind their ability it leads to severe muscle pain. If we lift weights o...