Recent content by thecow99

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    Had an, oh, that's how moment - Slingshot manuever

    Thank you both. Why, oh why, do I think about problems involving the word 'relative'? Tweaks my brain a bit but, at least, it forces me to flex it. I'm going to have to do the math now as my explanation seemed perfectly reasonable. Give me a bit, possibly a couple days, I'm no student and this...
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    Had an, oh, that's how moment - Slingshot manuever

    Had an, "oh, that's how" moment - Slingshot manuever So I've pondered on this off and on, could never see how it was possible, suddenly it just hit me.. tell me if I'm correct. In order to gain speed the object is using the orbital (or simply directional) trajectory of another. It allows...
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    Why did we stop at 46.5 billion light years?

    I've not learned much about particle interaction, but I'm gleaning that this pre 380,000 year interaction made the photons of the time undetectable. What would this area of study be called so I can look into it? A google search for "Photon interaction with charged particles" produces a myriad of...
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    Why did we stop at 46.5 billion light years?

    Thanks for stating the obvious.
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    Why did we stop at 46.5 billion light years?

    It's been bugging me. We've looked 13.5 billion years into the past, supposedly only about 500 million years short of the big bang, at objects 46.5 billion light years away. What were the limiting factors? What stops us so close from the finish line from peeking into the very beginning? If it's...
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    What is the equation that determines the speed of light "c"?

    c = \frac{1}{\sqrt{\varepsilon \mu}} I'm not familiar with all the symbols. I was looking into why the speed of light is "c". Why not faster or slower? What are the determining factors behind it's value?
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    Length contraction or Lorentz Contraction

    Eh, my stupid brain... The meter stick doesn't contract in it's own frame of reference. Should have guessed that! I kind of get it now. So when time dilation occurs, the moving object experiences less space traveled because in it's frame it "time" was constant. Wait.. is that why you can't...
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    Length contraction or Lorentz Contraction

    As I understand it, Lorentz Contraction states an object "contracts" relative to it's velocity to an observer. So at a high velocity of speed, the meter stick (carried by the object moving relative to the observer) appears to contract (to the observer) and the observer measures less distance...
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    Electromagnetic Radiation and Heat Transfer

    Because red is hot and blue is cold! Everyone knows that... J/K, I just couldn't resist.
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    Could Jupiter Be Ignited for Fusion?

    Lots of natural gas, no oxygen. Natural gas does not ignite on it's own. Once the "very little oxygen" was consumed the combustion would stop.
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    Two Parallel Beams of Light Pass Each Other At What Speed?

    Aha, I did a bit of looking and I see that there is quite a bit of discussion about "rest frame" from something moving at C and there is a problem with it. I didn't understand you're statement at first but I see what you are trying to say. Sooo... Change the values a bit... a stationary...
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    Why Do We Appear to Lean Left on a Curved Bus Ride?

    I had to think about it, but you're right. If you leaned to the left, wouldn't you fall outta your seat?
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    Two Parallel Beams of Light Pass Each Other At What Speed?

    Ok, from the Rest Frame of a stationary observer Photon A and Photon B are closing the gap between them at 2c. From the Rest Frame of Photon A OR Photon B they are approaching each other at c. I may be a little off on the exact wording but this is how I thought it worked. I just got done...
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    Two Parallel Beams of Light Pass Each Other At What Speed?

    You use Galilean Relativity if you are observing the interaction. If you are observing from the perspective of one of the beams of light, I learned not too long ago, you use Lorentzian Relativity which uses "relativistic velocity addition" v_{13} = \frac{v_{12} + v_{23}}{1 +...
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    Observable Boundary of Expanding Universe: Is There a Limit?

    I wanted to find out in a frozen frame what the maximum distance we could detect electromagnetic waves from, the "observable" boundary. With your help I was able to calculate ~13.9Bly. However, you were also correct that the boundary is not set due to a deceleration in the expansion rate which I...
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