question

Question: Speed of Light???

Life is full of mysteries that leave us wondering and scratching our heads. Lice can also do this. But if you have a question about life, or even about lice, this is your chance to ask it. Just shoot me an email, at TippyGnu [at] gmx.com. Or, if you don’t feel like shooting me, you can ask the question in a comment.


Colin Chappell, famed author of the book about his dog, Who Said I Was Up For Adoption? and celebrated co-author of the novel The Odessa Chronicles, and beloved owner of the semi-dormant blog A Dog’s Life . . . and mine . . . and yours! has an important question to get the gears in our heads grinding.

Just remember, there are no stupid questions. So here’s Colin’s:

Based on the speed of light, and acknowledging the huge distance that some stars are from us, we know that some stars we see no longer exist. i.e. the light has only just reached us, but the star disintegrated years ago…….. so ……….

Given that what we see is governed by the speed of light, then if we travel to the moon and back at twice the speed of light, then a quick trip to a telescope upon our return should show our landing on the moon. Takingย  that one-step further, if we go to the moon and back at four times the speed of light, then (upon our return) we should see ourselves taking off from earth. What is wrong with this picture?

Categories: question

67 replies »

  1. What is wrong with the picture is that you can’t exceed the speed of light. This is because the object traveling the speed of light is traveling at infinite speed in its own reference frame. As you approach the speed of light, time slows to a near stop and you instantly travel from your starting point to your destination from your perspective. But from the perspective of the stationary observer, you were traveling the speed of light (300Mm/s). You can blame Einstein for all of this.

    So, if you took off at the speed of light and traveled to a place 4 light years away, you would be there in an instant from your perspective, but it would have taken you 4 years from someone else’s perspective.

    Liked by 2 people

  2. This conversation is brilliant…if only it could travel at the speed of light; but then if it did, I’d probably have missed it. Or I wouldn’t have had the opportunity to witness it…yet. So back on planet earth, where only light is traveling that fast…yeah…I got nothing.

    Liked by 2 people

  3. Oh gosh, I see I am late to the party! If I had known that you wanted difficult questions I would have asked why the sky is blue and why is the grass green?
    Now I will delve into the comments, because I am crazy! Would probably be better for my head not too.

    Liked by 1 person

  4. isn’t Elon Musk working on something that will transport people between NYC and San Fran at faster than the speed of light? and what would be the implications for Twitter of such a creation?

    Liked by 3 people

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