How to time travel in to the past?

Answer 1

i have an idea. If somebody launch a rocket in space and it has the system like fan.

i mean, according to newton first law , if anything get any amount of velocity then

it will go with same speed until any force affects on it. a fan can rotate with very

high speed. so if we stay in a vehicle and it attaches with the bled of the big fan

in space. we able to rotate the fan with speed of light for one moment and then

we launch our vehicle then it will get the speed of light for ever. But it is depended

on mathematical calculation. You have to stay alert if you do so.

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You have a very interesting plan. Here are some mathematical calculations to help you:

-- Send astronauts to build the fan in space.

The International Space Station is only 109 meters long, and it needed 115 space

missions to construct it. But money is not a problem for your plan, so you will send

enough material with your astronauts to build a fan that is 1,000 meters across it.

-- Tie your vehicle to the end of one fan blade.

-- There is a giant motor in the center of your fan. It will spin the blades, with

your vehicle tied to the end. Money is not a problem for your plan, so a huge

amount of fuel was sent with the astronauts, to operate the motor in the center.

-- The end of the blade is 500 meters from the center of the fan. How fast do you

spin the fan in order to move your vehicle at the speed of light ?

Circumference = 2 pi R = 1,000 pi meters

Rate of rotation = Speed of light / circumference = 300,000,000 / 1,000 pi =

95,500 revolutions per second.We know also that a force must pull the vehicle toward the center of its circular

motion; if there is not enough force to hold it in circular motion, then it will break

free and fly off in a straight line.

The amount of force needed to keep the vehicle on a 1-kilometer circle, at the

speed of light, is

F = m v2 / R = m (3 x 108)2 / 500 = 180,000,000,000,000 newtons (20,230,000,000 English tons)

for every kilogram of mass in the vehicle and its passengers.

So far in the mathematical calculation, you need to rotate a 1-kilometer structure

at a rate of more than 95,000- revolutions per second, with the mass of a vehicle

and its passengers mounted 500 meters out from the motor, and you need a

fan structure that can hold 20 billion tons of force for every kilogram without

disintegrating and flying to pieces.

But even this does not accomplish the job.

From the theory of relativity and thousands of experiments during the past hundred

years, we know that as the speed of the vehicle rises, its mass increases. So, as the

speed of the fan increases and the mass of the vehicle increases, the motor needs

more and more power to increase the speed of the fan even more.