"The laws of physics is the canvas God laid down on
which to paint his masterpiece".
"Hii, I am Disha "
" Hii , I am
why is that whatever we throw in the air
have to came back?
why every thing can't float in air ?
i know i know .. so look in this universe every object attracts
every other object with a force which holds the universe together..
and the name of this woderful amazing force is Gravitational Force .
Ohh... tell me more about it..
what is it ? who found it? and
somethinng more interesting
Gravity is a force of attraction that pulls together all matter (anything
you can physically touch). The more matter something has, the greater
the force of its gravity. The gravitational pull of an object depends on
how massive it is and how close it is to the other object.
ohh... so do you mean that big objects like planets
and stars have a stronger gravitational pull which
means the gravity of the sun keeps earth in orbit
around it, keeping us at a comfortable distance.
yessss!!! that's what i meant.
Now let's see it's amusing history.
Let's see how it
in 1666 , Isaac Newton was first who described the force of gravity by mathematically, creating Newton's
Laws of Universal Gravitation. it is said that his ideas about gravity were inspired by watching an apple
fall from a tree. Newton wondered what force made the apple fall downward instead of simply floating
Now you know that gravity keeps us earthbound.
so to escape its pull and leae our planet far behind,
we need to travel at an incredible 7 miles (11km)per
second (about 24,900 miles[40,000km] per hour.
This no. is called earth's "escape velocity'. To travel that fast, you
would have to be a superhero!!
NO just joking!!! To reach
such speeds calls for the power of a rocket.