Gravity


Is there Gravity in space?

We all live in the Earth and are bound by its Gravitational force. The highest any one of can jump is 2 feet before we fall back.

But everyone knows that space has no gravity, and we are free to jump as high as we want, except of course everyone is wrong.

Space is packed with gravity. Without it there would be no solar systems or galaxies and all the objects would move in straight lines. But gravitational force decreases with increase in distance between the two objects.

Every object in the universe is constantly attracting every other object in the universe. This means that, YOU are applying some amount of gravitational force (however minute) on the SUN! Don’t you feel more powerful?


You may wonder how astronauts float, actually they don’t. They are constantly falling and they don’t have anything to stop them. This is known as ‘free falling’ where the astronauts get feeling of weightlessness but gravity is still acting on them and pulling them.


Debunked!




P.S. - If you have any urban legend or superstition that you are doubtful of, just comment it and I will try to debunk that.

Comments

Post a Comment

Popular posts from this blog

Einstein in School

Image
Did Einstein fail at school? At the end of the 20th Century, Time magazine voted Albert Einstein to be the Man of The Century. He authored four papers that changed our understanding of the way the universe works. Generations of school kids have consoled themselves over their poor school marks with the belief that Einstein failed at school. Some motivational speakers also make this claim - but this is wrong. The truth is, Einstein seemed to relish problem solving, and little else. Despite minor troubles in French and the Humanities, Einstein was a prodigy in math and physics from a young age. He loathed the busy work of a typical school day and dropped out when he was 15. This rumor actually started while he was still alive and even showed up in a particular issue of Ripley’s Believe It Or Not. Einstein reportedly found the article humorous and remarked: ““I never failed in mathematics… Before I was fifteen I had mastered differential and integral calculus.”
Keep reading

Left Brain vs Right Brain

Image
Are we really Right Brained or Left Brained? A time-old way of categorizing someone’s personality is to determine whether that individual is “right-brained” or left-brained” — right-brained people are thought to be more spontaneous, creative, and artistic, while left-brainers are associated with being more logical, detail-oriented, analytical . Too bad it's not true . So where did this whole left brain vs. right brain idea start? It was born back in the 60s when a Nobel Prize-winning neuro-psychologist named Roger Sperry cut the hemisphere-connecting brain fibers in a number of epilepsy patients to reduce their seizures. Then he decided to run an experiment to compare how the right and left hemispheres processed information differently , and his study marked the beginning of the right-brain left-brain myth that would persist through the years. Trouble is, science never really supported this notion after that. More recently, brain scan technology has revealed
Keep reading

Coin Dropped from a Skyscraper

Image
Can a Penny or any coin dropped from a tall Skyscraper kill you? You’ve probably heard people say how if you drop a penny off the top of the Empire State Building , it will accelerate to such a speed that if it struck someone, it would kill them . This simply isn’t true at all , not by a long shot. A penny only weighs about a gram and it tumbles as it falls. Because of the tumbling and the light weight , there's so much air resistance that the penny never really gathers that much speed before it hits its terminal velocity . A gram of weight traveling at a relatively slow speed might hurt a little if it hit you on the head, but it's not going to kill you. Pennies are flat, so they experience a lot of air resistance, and they are light, so it doesn't take much drag to counteract their weight . Thus, if hurled off a skyscraper, pennies achieve their terminal velocity after only about 50 feet (15 meters) of descent . After that point, they flutter to th
Keep reading