Can we travel at the speed of light?

Having the ability to travel at the speed of light would lead to so many advantages, like travelling throughout our universe increasing our understanding of the chemistry, the makings and life beyond our planet. Plus we would have the ability to outlive our normal lifespan and have the opportunity to time travel into the future.

Science behind the speed of light: 5 need to know facts!


Below are five interesting fun facts that may not be practical but are still interesting to think about!

1. What is the speed of light:

The speed of light is 299 792 458 m / s, but to get a general idea in mph is 670,616,629 mph, yes that fast. It is thought that travelling at this speed for 1 second would circle the earth 7.5 times, wow that is insanely fast.

2. Who am I?

Due to a photon being matter-less, travelling at the speed of light, therefore being time, means that a photon doesn't actually know that it exists.

3. Slowing the speed of light down:

The speed of light can also seem slow. For light to travel from one end to the other of our galaxy, it would take as long as 100,000 years, but what about the observable universe. For light to travel the length of the observable universe it would take a massive 100 billion years. Also, considering the universe is 14 billion years old and still expanding, kind of explains why not all of the light in the universe is visible.

4. Time travel:

Travelling just 90% of the speed of light would kind of allow you to speed to the future. For example, travelling at this speed for just 10 minutes would be 20 minutes on earth, but 1 week at light speed would be 100 earth years, but you would of only aged for the amount of time travelled.

5. It's getting really heavy:

Finally, I hate to break it to you, but due to Einstein’s famous theory E = mc², describes that as an object moves faster, the more its mass increases, for example moving around 90% would see the mass as double. However, travelling at the speed of light would equate to an infinite mass and that of the energy, resulting in the fact that mass cant travels faster than light.

Time to think:

  • If you travelled to the shop at the speed of light, would you be back before you left for the shop?

  • If you were driving in a car at the speed of light and turned your headlights on would they work?



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