To make a time machine or a replica of 1 that's not a TARDIS or holly hop machine what can you make?

Answer 1

I will answer scientifically here:

Time travel in reality is a theoretical possibility. To travel into the future all you have to do is move very fast (close to a speed of light), to travel back in time you have to move even faster (faster than the speed of light). So any fast spaceship is automatically a time machine. The problem is that you can not accelerate a spaceship that fast in reality, but scientists have a design for a real time machine that would still work in theory. It looks like an symmetrical egg which rotates very quickly and so its outer sides move faster than the speed of light (warps space-time). The machines that you see in most movies (stationary in a laboratory) are not realistic.

Actually we have physical proof of time travel to a certain extent Example: A Russian astronaut that was in an satellite orbiting earth actually aged 1 second slower than other humans on earth. Increase the speed of travel, and the time shift become greater.

Although scientists are agreed that travel into the future is at least theoretically possible, there is a general agreement that travel to the past is probably not possible. However, the great thinkers and scientists of the day such as Professor Stephen Hawkings and his colleagues around him are not saying that is is impossible either. History is full of scientists and academics announcing that something would never be possible, only to be proved wrong. The clever scientists are wise to avoid the word "impossible".