Iam a Microbiologist, not an expert in math and relativity. I have a simple question.(adsbygoogle = window.adsbygoogle || []).push({});

Assumption

Mr 'X' travells to the star 'S'

In earth reference the star is 5 light years ie 9,500,000,000,000 x 5 Kms from earth

Mr X travels @ 80% of lights speed (80% speed from leaving and reaching back; Immediate acceleration)

In earths time Mr X returns after 12.5 (6.25x2) years travelling 9.5^13 Kms

In Mr ' X' clock, Assume, he has returned to earth in 9 years due to time dilation.

As per Mr 'X' clock, he has traveled only 8.55^13 (9 Years X 9,500,000,000,000 kms)

Question is

1. How can it be?Whether Distance is also relative as time?

2. If Distance is relative, then how can be the speed of light is a constant?

I guess, i have made you to understand my point

Please No mathematics and calculations, Biologists are fools to understand numbers, so use simple terms like "Time runs slow @ higher speed" to explain.

With Regards

Merwyn

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# A time dilation question as a biologist

Tags:

Loading...

Similar Threads for dilation question biologist |
---|

I How does gravitational time dilation work? |

A General relativity: time dilation and speed of light |

B Is it really not possible to tell which object is moving? |

B Speed of light, Time Dilation Question. |

B Question about time dilation |

**Physics Forums | Science Articles, Homework Help, Discussion**