- Can an atom die?
- Can time be divided infinitely?
- Can you go infinitely small?
- What is infinitely small?
- Is one infinitely more than zero?
- Was the Universe smaller than an atom?
- Does Infinity exist in reality?
- Does the universe end?
- What was before the universe?
- Can the universe be infinite?
- How big is the entire universe?
- Why can’t we see past the observable universe?
- Is infinitely small equal to zero?
- What’s the smallest thing in the universe?
- What is outside the universe?

## Can an atom die?

Since an atom has a finite number of protons and neutrons, it will generally emit particles until it gets to a point where its half-life is so long, it is effectively stable.

…

It undergoes something known as “alpha decay,” and it’s half-life is over a billion times longer than the current estimated age of the universe..

## Can time be divided infinitely?

Physical space is often regarded as infinitely divisible: it is thought that any region in space, no matter how small, could be further split. Time is similarly considered as infinitely divisible.

## Can you go infinitely small?

In physical reality – no. Anything infinitely small does not exist although some objects act as if they are point-like. In mathematical Real numbers – no. The set of Real numbers , , is defined to have the Archimedean property .

## What is infinitely small?

Hence, when used as an adjective in mathematical use, “infinitesimal” means “infinitely small,” or smaller than any standard real number. To give it a meaning, infinitesimals are often compared to other infinitesimals of similar size (as in a derivative).

## Is one infinitely more than zero?

There is no way you could get from 0 to 1 using multiplication. Therefore, it is undefined. However, from a philosophical standpoint, 1 could be infinitely larger than 0. But then that applies to any number larger than 0, including 0.000000000000000001.

## Was the Universe smaller than an atom?

Most physicists, he begins, agree on the big-bang theory, which says that 14 billion years ago the entire observable universe was “roughly a million billion billion times smaller than a single atom” and has been expanding ever since, to its current size of something like 100 billion galaxies.

## Does Infinity exist in reality?

Great mathematicians, like Gauss or Pointcaré, said that actual infinity does not exist. What it is called infinity is only an endless process. By contrast, Cantor believes that actual infinity exists. Any argument for or against the actual infinity will be welcome.

## Does the universe end?

Theories about the end of the universe. The fate of the universe is determined by its density. The preponderance of evidence to date, based on measurements of the rate of expansion and the mass density, favors a universe that will continue to expand indefinitely, resulting in the “Big Freeze” scenario below.

## What was before the universe?

The initial singularity is a gravitational singularity predicted by general relativity to have existed before the Big Bang and thought to have contained all the energy and spacetime of the Universe.

## Can the universe be infinite?

If the universe is infinite, it has always been infinite. At the Big Bang, it was infinitely dense. Since then it has just been getting less dense as space has expanded. … In the infinite case, you wouldn’t have enough curvature for spacetime to form the hypersphere.

## How big is the entire universe?

The proper distance—the distance as would be measured at a specific time, including the present—between Earth and the edge of the observable universe is 46 billion light-years (14 billion parsecs), making the diameter of the observable universe about 93 billion light-years (28 billion parsecs).

## Why can’t we see past the observable universe?

Because no signals can travel faster than light, any object farther away from us than light could travel in the age of the universe (estimated as of 2015 around 13.799±0.021 billion years) simply cannot be detected, as the signals could not have reached us yet.

## Is infinitely small equal to zero?

The generally accepted mathematical answer is that, if you are using the Real Number Systems (aka “Reals”), there is no difference between 0 and “infinitely small”. We say the limit of x, as x approaches 0, is equal to zero. … As soon as you say, “infinitely close to 1”, then you are effectively saying “1”.

## What’s the smallest thing in the universe?

But the atom is not the smallest unit of matter. Experiments found that each atom has a tiny, dense nucleus, surrounded by a cloud of even tinier electrons. The electron is, as far as we know, one of the fundamental, indivisible building blocks of the universe. It was the first Standard Model particle ever discovered.

## What is outside the universe?

Encountering the Unknown Despite its strangeness, this first idea is one of the easiest to digest. Astronomers think space outside of the observable universe might be an infinite expanse of what we see in the cosmos around us, distributed pretty much the same as it is in the observable universe.