Please read How small is an atom, Introduction to Quantum physics, Empty Space Is Not Empty and Matter is an illusion  before or in conjunction with this article.

8 unique features of Quantum world 

The quantum world is the world that is smaller than an atom. Things at this scale do not behave the same way as objects on the scale that we can see. This subatomic matter does not follow the same rules as objects that we can see, feel or hold. Let me tell you the top unique features of this world.

1-Quantum world: It is Almost empty

First, all quantum world is almost empty that is an atom is made of 99.99% empty space as I told you in detail in part 18. That’s why you can compress matter to tremendous extents. The whole human race can be compressed to the size of a sugar cube.

2-Quantum World: Particles or Waves

Second, sometimes they behave like clumps of matter sometimes like waves, but whenever we observe them directly, they appear to us as particles. This is already proved by double slit experiment according to which, if you observe which of two slits light passes through, you force it to behave like a particle. If you don’t and observe only where it lands on a screen behind the slits, it behaves like a wave. It seems that after interactions and observation their wave like nature collapse to a particle.

3-Quantum World: Wheeler’s delayed choice or quantum eraser

Third observing a particle now may change what happened to another one in the past. This is called Wheeler’s delayed choice or quantum eraser and it can be considered a modified version of the double slit experiment. In this case, if you wait for the particle to pass through the slit, and then observe which way it came through, it will retroactively force it to have passed through one or the other. In other words, causality is working backwards; the present is affecting the past.

4-Quantum World: Two places at the same time

Fourth a quantum particle can be considered to be at two places at the same time.

5-Quantum World: Existence out of nothingness

Fifth a particle can spontaneously come into existence out of nothingness, as well as disappear into nothingness. 

6-Quantum World: No cause of Radioactive decay

Sixth a radioactively decaying nucleus of an atom can spontaneously break down into other nuclei without any clue what causes the decay.

7-Quantum entanglement and teleportation

Seventh is quantum entanglement and teleportation by which particles may be entangled or connected even if they are separated by the expanse of the universe. Imagine that you and a friend had two coins with a magical connection. If one showed up heads, the other would always be tails. You each take your coins at different places and then flip them at the same time. If yours comes up heads, then at the exact same moment you know your friend’s coin has just come up tails. Entangled particles work like those coins. In the lab physicist have already entangled pairs of photons then send the pairs to a lab in a different city now the latest by Chinese scientists at a distance of 1200Km. When they measured something about the photon in their lab, the other one was affected immediately.

Applying quantum entanglement scientists have been able to teleport particles. In July 2017 Researchers in China have teleported a photon from the ground to a satellite orbiting more than 500 kilometers above. Whether in future we would be able to teleport heavier stuff e.g human beings is at the moment far from achievement. A single human being contains a huge amount of particles and that means an immense amount of data would need to be transferred for human teleportation. There are more particles in the human body than there are stars in this universe.

Human Teleportation

But in theory, it could be possible and for this, we need four chambers. Two chambers with particles entangled with each other and the 3rd one as a scanner at the place of departure and the 4th one at the place of arrival. In the scanner, we enter and it scans all our body particles get al