Question

what is wormhole ? is it exist

Answer 1

Wormhole in simple language is a space time distortion ....it means that it will take to a place instantly that would take u millions of years to go ...
By bending the space to create a way. :)

Answer 2

first we will discuss about what is wormhole.

actually there are 10 dimensions in our universe but we can see upto 3dimensions only.

lets take an example

suppose you are moving in. a car

if you are travelling straight then thats 1st dimension.

if you move left and right too thats 2nd dimension

if there is a mountain and you go through mountain then Thats 3rd dimension.

means.

0D means a point

1D means having length

2D means having length and breadth too

and.

3D means having length, breadth and height.

but there is also type of length which we can't see thats the length of time.

thats called four dimensional space time.

now come to the topic.

as we know nothing is totally smooth in this universe means all the things are rough means there will be hole in everything.

and we know time is also a physical quantity .

means time have also some holes

that holes called wormhole.

and if any object travel through wormhole they can go in past.

but they are too small even then quark and bosons.

and if any one will do time travel to past then there will be the situation called

(virodhawas)

means

suppose you travelled in past and

you killed yourself.

but you died in past so how can you be in present.

and who killed you because you died in past.

thats called paradox (virodhabas)