Relativity tells us that **the same laws of nature hold true everywhere in the universe**. This equivalence principle also confirms that two bodies fall through a gravitational field at the same rate regardless of their mass. All of which brings us to Einstein’s talk at the Prussian Academy.

Then, How did Einstein come up with relativity?

Einstein then wondered how light would behave in the accelerating room. … In his four papers, published in November 1915, Einstein laid the foundation of the theory. In the third in particular he used general relativity **to explain the precession of the perihelion of Mercury**.

But also, Did Einstein think the universe was static?

Albert Einstein accepted the modern cosmological view that the universe is expanding long after his contemporaries, new study shows. **Until 1931, physicist Albert Einstein believed that the universe was static**.. … The change in Einstein’s viewpoint, in fact, resulted from a tortuous thought process.

Why is a black hole black? A black hole is a region of spacetime where **gravity is so strong** that nothing — no particles or even electromagnetic radiation such as light — can escape from it. … In many ways, a black hole acts like an ideal black body, as it reflects no light.

Similarly, What did Einstein mean by time is relative?

In the Special Theory of Relativity, Einstein determined that time is relative—in other words, **the rate at which time passes depends on your frame of reference**. … The effect of time slowing down is negligible at speeds of everyday life, but it becomes very pronounced at speeds approaching that of light.

**Who proved Einstein’s theory?**

Albert Einstein published the theory of special relativity in 1905, building on many theoretical results and empirical findings obtained by **Albert A.** **Michelson, Hendrik Lorentz, Henri Poincaré** and others. Max Planck, Hermann Minkowski and others did subsequent work.

**What did Einstein special theory of relativity?**

Special relativity is **an explanation of how speed affects mass, time and space**. … As an object approaches the speed of light, the object’s mass becomes infinite and so does the energy required to move it. That means it is impossible for any matter to go faster than light travels.

**Who convinced Einstein the universe was expanding?**

“Two months with **Hubble** were enough to pry him loose from his attachment to the cosmological constant” is just one example of such statements [Topper 2013]. There are variations of the theme, but the essence remains the same: Hubble personally convinced Einstein that the universe was in a state of expansion.

**Did Einstein say the universe was eternal?**

It was a prejudice of the time that the universe was constant and eternal, forever unchanging — at least on the largest levels. This led Einstein to add a term to his initial equations in 1917. … That is, the universe was **not static**.

**Where does space end?**

Interplanetary space extends to the heliopause, whereupon the solar wind gives way to the winds of the interstellar medium. Interstellar space then continues to the edges of the galaxy, where it fades into **the intergalactic void**.

**Can a wormhole exist?**

In the early days of research on black holes, before they even had that name, physicists did not yet know if these bizarre objects existed in the real world. The original idea of a wormhole came from physicists Albert Einstein and Nathan Rosen. …

**What is Stephen Hawking’s black hole theory?**

In 1971, Stephen Hawking proposed the area theorem, which set off a series of fundamental insights about black hole mechanics. The theorem **predicts that the total area of a black hole’s event horizon — and all black holes in the universe, for that matter — should never decrease**.

**Do you age slower in space?**

We all measure our experience in space-time differently. That’s because space-time isn’t flat — it’s curved, and it can be warped by matter and energy. … And for astronauts on the International Space Station, that means they get to **age just a tiny bit slower than people on Earth**. That’s because of time-dilation effects.

**Is it possible to travel back in time?**

**Time travel is possible based on the laws of physics**, according to new calculations from researchers at the University of Queensland. But time-travelers wouldn’t be able to alter the past in a measurable way, they say — the future would stay the same.

**Is time real or an illusion?**

According to theoretical physicist Carlo Rovelli, **time is an illusion**: our naive perception of its flow doesn’t correspond to physical reality. Indeed, as Rovelli argues in The Order of Time, much more is illusory, including Isaac Newton’s picture of a universally ticking clock.

**Is time Travelling possible?**

In Summary: Yes, time travel is indeed a real thing. But it’s not quite what you’ve probably seen in the movies. Under certain conditions, it is possible to experience time passing at a different rate than 1 second per second.

**At what age did Einstein pass away?**

After suffering an abdominal aortic aneurysm rupture several days before, Albert Einstein died on April 18, 1955, at age **76**.

**When did Einstein divorce his first wife?**

Mileva and Einstein divorced on **February 14, 1919**. After the divorce, Mileva spent a great deal of her life taking care of Eduard. In 1947, her health began to deteriorate. The next year, she suffered a stroke that left her paralyzed on one side of the body.

**Did Einstein believe in black holes?**

Over a century ago, **Albert Einstein predicted that the gravitational pull of black holes were so strong that they should bend light right around them**. Black holes don’t emit light, they trap it; and ordinarily, you can’t see anything behind a black hole.

**Did Einstein think the universe was finite?**

Assuming a universe that was static in time, and possessed of a uniform distribution of matter on the largest scales, **Einstein was led to a finite**, static universe of spherical spatial curvature. …

**What was Einstein’s big mistake?**

To remain in accordance with the idea of a static universe, Einstein introduced a cosmological constant into his equations, which froze the state of the universe. His intuition led him astray: in 1929, when **Hubble demonstrated that the universe is expanding**, Einstein admitted that he had made “his biggest mistake”.

**What was Einstein IQ?**

A score of 135 or above puts a person in the 99th percentile of the population. News articles often put Einstein’s IQ at **160**, though it’s unclear what that estimate is based upon. … “Of course Einstein was the greatest theoretical physicist of the 20th century, so he must have had a superlative IQ.”

**Did Einstein know his phone number?**

Einstein’s memory was notoriously poor. He was unable to remember dates and **could not remember his own phone number**.

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