Neutron Star 4,200 Light-Years Away Proves Einstein's Gravity Principle Is Correct

[Judi Lynn]

5 July 2018, 9:44 pm EDT By Nicole Arce Tech Times

If one drops a marble and a bowling ball from the 44th floor of a high-rise in Manhattan, they would fall at the same time.

The same principle holds true even for all objects regardless of their mass, according to the principle of gravity in Einstein's theory of relativity. This is called the Strong Equivalence Principle, which states that all objects fall at the same rate notwithstanding their mass or composition.

This has long been proven in heavenly objects in the solar system. The Earth and Jupiter, for example, both "fall" at the same rate toward the sun even though they have very different masses. Astronomer Dave Scott famously demonstrated this with a hammer and feather falling at the same rate on the moon.

Even in the most extreme conditions, the principle stands. This has been proven by a team of international researchers after rigorous observations of the behavior of a rare star system just 4,200 light-years away from Earth.

More:
https://www.techtimes.com/articles/231753/20180705/neutron-star-4-200-light-years-away-proves-einstein-s-gravity-principle-is-correct.htm

[mr_lebowski]

1. Wow ... such egregious errors for a science article ...

If one drops a marble and a bowling ball from the 44th floor of a high-rise in Manhattan, they would fall at the same time.

Verb-tense issues aside, no, they'd fall at the same SPEED. You'd drop them at the same time.

Astronomer Dave Scott

Uhhh ... pretty sure we didn't send any astronomers to the Moon.

of a rare star system

We have no idea whether any 'star system' possesses 'rare' qualities, and its totally irrelevant to this discussion to begin with.

[Judi Lynn]

2. Einstein's Theory of Gravity Passes Toughest Test to Date

By Mike Wall, Space.com Senior Writer | July 5, 2018 09:25am ET

Einstein's theory of general relativity has passed its toughest-ever test with flying colors, a new study reports.

General relativity, which the great physicist proposed in 1916, holds that gravity is a consequence of space-time's inherent flexibility: Massive objects distort the cosmic fabric, creating a sort of well around which other bodies orbit.

Like all scientific theories, general relativity makes testable predictions. One of the most important is the "equivalence principle" — the notion that all objects fall in the same way, no matter how big they are or what they're made of. [Einstein's Theory of Relativity Explained (Infographic)]

Researchers have confirmed the equivalence principle many times on Earth — and, famously, on the moon. In 1971, Apollo 15 astronaut David Scott dropped a feather and a hammer simultaneously; the two hit the gray lunar dirt at the same time. (On Earth, of course, the feather would flutter to the ground much later than the hammer, having been held up by our atmosphere.)

More:
https://www.livescience.com/62993-einstein-general-relativity-survives-test.html