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# sir isaac newton gravity

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## What is Isaac Newton’s law of gravity?

Newton’s law of gravitation, statement that any

particle of matter in the universe attracts any other

with a force varying directly as the product of the masses and inversely as the square of the distance between them.

## Newton’s first law: the law of inertia

Newton’s first law states that if a body is at rest or moving at a constant speed in a straight line,

it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force. In fact, in classical Newtonian mechanics,

there is no important distinction between rest and uniform motion in a straight line;

they may be regarded as the same state of motion seen by different observers,

one moving at the same velocity as the particle and the other moving at constant velocity with respect to the particle.

This postulate is known as the law of inertia.

## The law of inertia

The law of inertia was first formulated by Galileo Galilei for horizontal motion on Earth and was later generalized by René Descartes.

Although the principle of inertia is the starting point and the fundamental assumption of classical mechanics, it is less than intuitively obvious to the untrained eye.

In Aristotelian mechanics and in ordinary experience,

objects that are not being pushed tend to come to rest.

The law of inertia was deduced by Galileo from his experiments with balls rolling down inclined planes.
For Galileo,

the principle of inertia was fundamental to his central scientific task:

he had to explain how is it possible that if Earth is really spinning on its axis and orbiting the Sun,

we do not sense that motion.

## The principle of inertia helps to provide the answer:

since we are in motion together with Earth and our natural tendency is to retain that motion, Earth appears to us to be at rest.

Thus, the principle of inertia, far from being a statement of the obvious, was once a central issue of scientific contention.

By the time Newton had sorted out all the details,

it was possible to accurately account for the small deviations from this picture caused by the fact

that the motion of Earth’s surface is not uniform motion in a straight line (the effects of rotational motion are discussed below).

In the Newtonian formulation,

the common observation that bodies

that are not pushed tend to come to rest is attributed to the fact that they have unbalanced forces acting on them, such as friction and air resistance.

## How did Newton find gravity?

The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature. Whatever really happened,

Newton realized that some force must be acting on falling objects like apples because otherwise they would not start moving from rest.

## Who actually discovered gravity?

Everyone knows that Isaac Newton came up with the law of gravity after seeing an apple fall from a tree in his mother’s garden.

Newton himself told the story to several contemporaries,

who recorded it for posterity.

## What did Isaac Newton say when he discovered gravity?

“Aha!” he shouts, or perhaps,

“Eureka!” In a flash he understands that the very same force that brought the apple crashing toward the ground also keeps the moon falling toward the Earth and the Earth falling toward the sun: gravity.

## What is Einstein’s theory of gravity?

GETTING A GRIP ON GRAVITY Einstein’s general theory of relativity explains gravity as a distortion of space (or more precisely, spacetime) caused by the presence of matter or energy.

A massive object generates a gravitational field by warping the geometry of the surrounding spacetime.

## What are the 3 laws of gravity?

In the first law, an object will not change its motion unless a force acts on it.

In the second law, the force on an object is equal to its mass times its acceleration.

In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

## When did Isaac Newton discover gravity?

However, he had a large intellect, as shown by his discoveries on gravity,

light, motion, mathematics, and more.

Legend has it that Isaac Newton came up with gravitational theory in 1665, or 1666, after watching an apple fall.

## Did Newton actually discover gravity?

A genius with dark secrets. Isaac Newton changed the way we understand the Universe.

Revered in his own lifetime, he discovered the laws of gravity and motion and invented calculus.

He helped to shape our rational world view.

## Who actually discovered gravity before Newton?

JAIPUR: A Rajasthan minister known for his controversial remarks has now claimed that Indian mathematician and astronomer Brahmagupta-II (598-670) discovered the law of gravity over 1,000 years before Issac Newton (1642-1727) did.

## What created gravity?

Earth’s gravity comes from all its mass.

All its mass makes a combined gravitational pull on all the mass in your body.

That’s what gives you weight.

And if you were on a planet with less mass than Earth, you would weigh less than you do here.

## Why Isaac Newton is called sir?

Isaac Newton was a physicist and mathematician who

developed the principles of modern physics,

including the laws of motion and is credited as one of the great minds of the 17th-century Scientific Revolution. … In 1705, he was knighted by Queen Anne of England,

making him Sir Isaac Newton.

## What did they find in Isaac Newton’s hair when he died?

After his death,

Newton’s hair was examined and found to contain mercury, probably resulting from his alchemical pursuits.

Mercury poisoning could explain Newton’s eccentricity in late life.

## What if Newton was alive today?

If Newton were born today,

he wouldn’t have to invent the parabolic mirror telescope;

instead, he could use one– perhaps one orbiting the Earth. He wouldn’t have to invent calculus;

by the age of 20 he would have mastered it. … If Newton were born today, he wouldn’t be a creationist. He’d be a cosmologist.

## What are the 3 laws of gravity?

In the first law, an object will not change its motion unless a force acts on it.

In the second law, the force on an object is equal to its mass times its acceleration.

In the third law, when two objects interact,

they apply forces to each other of equal magnitude and opposite direction.

## Did Indians knew about gravity before Newton?

Former ISRO chairman Madhavan Nair recently said that Aryabhata knew of gravitational force 1500 years before Newton. …

Aryabhata was indeed a remarkable astronomer with

many ideas that formed the basis of our modern understanding of the universe.

## What created gravity?

Earth’s gravity comes from all its mass.

All its mass makes a combined gravitational pull on all the mass in your body.

That’s what gives you weight.

And if you were on a planet with less mass than Earth, you would weigh less than you do here.

## Did Einstein discover gravity?

added time as a fourth dimension to space,

calling the result space-time. …

According to Einstein, an object’s gravity is a curvature of space.

## Is Newton’s law of gravity true?

The 17th-century gravitational law is a landmark in physics and has held true up until now. …

The study put the law of universal gravitation to test and it did not hold true.

Not in relation to the black hole at least.

As per new findings, scientists are now placing their bets on Einstein’s theory of general relativity.

## Did Isaac Newton have friends?

Newton’s life did not include many friends, or family he felt close to,

or even a single lover, for, at least until his later years,

getting Newton to socialize was something like convincing cats to gather for a game of Scrabble.

## How did Isaac Newton discover gravity?

The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature. Whatever really happened,

Newton realized that some force must be acting on falling objects like apples because

otherwise they would not start moving from rest.

## Who invented calculus?(sir isaac newton gravity)

Today it is generally believed that calculus was discovered independently in the late 17th century by two great mathematicians:

Isaac Newton and Gottfried Leibniz.

## Was Newton a genius?(sir isaac newton gravity)

Revered in his own lifetime, he discovered the laws of gravity and motion and invented calculus.

He helped to shape our rational world view.

## Which scientist died a virgin?

Isaac Newton Died A Virgin And 9 Other Facts About The Brilliant, Bizarre Physicist.

Isaac Newton today is venerated as one of the greatest scientists who ever lived —

the father of classical mechanics and co-creator of calculus.

## What disability did Isaac Newton have?

Einstein and Newton showed signs of autism.

## What does Newton’s 2nd law state?(sir isaac newton gravity)

Newton’s second law is a quantitative description of the changes that a force can produce on the motion of a body.

It states that the time rate of change of

the momentum of a body is equal in both magnitude and direction to the force imposed on it.

## Where does Earth’s gravity end?sir isaac newton gravity

The Earth’s gravitational field extends well into space it does not stop.

However, it does weaken as one gets further from the center of the Earth.

The Shuttle orbits about 125 mi above the surface, roughly the distance between Jackson and Nashville!

## How did Einstein disprove Newton?sir isaac newton gravity

Einstein argued that Newton was wrong about what the force of gravity actually moves. …

But according to Einstein, space and time together form a four-dimensional thing called spacetime,

and objects’ gravity actually warps spacetime itself.

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