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Telescopes. Nate Walsh. The reason I chose telescopes.

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Telescopes

Telescopes

Nate Walsh


The reason i chose telescopes
The reason I chose telescopes

  • Even with the most powerful telescopes imaginable, there’s a limit to how far we can see into space: In a universe that is 14 billion years old, we cannot possible see anything more than 14 billion light-years away. Beyond that-say, at a distance of 15 billion light years-we’d be looking back to a time before the universe existed, which means there’s nothing to see.


I don’t think that quite makes sense, even though our light will only be 14 billions light years away. Anything out side of that parameter would still have its light traveling toward the earth before it existed.


  • The light from the other galaxies doesn’t wait for the earth until it starts to send off it’s light. So wouldn’t it’s light already be on its way in this direction before the earth existed. Unless, they are suggesting that the earth was the first planet. So it seems to make more sense that telescopes can only see so far.



  • But that doesn’t make sense either. It doesn’t seem there wouldn’t be enough matter in one explosion to create all those other galaxies. And if there is already galaxies over 14 billion light years away. That would mean their matter would’ve had to travel faster then the speed of light.


  • What there wouldn’t be enough matter in one explosion to create all those other galaxies. And if there is already galaxies over 14 billion light years away. That would mean their matter would’ve had to travel faster then the speed of light.

    are

    the

    different

    types

    of

    telescopes.


Refracting telescopes
Refracting telescopes there wouldn’t be enough matter in one explosion to create all those other galaxies. And if there is already galaxies over 14 billion light years away. That would mean their matter would’ve had to travel faster then the speed of light.

  • Refracting telescope operates much like an eye, using transparent glass lenses to collect and focus light.


Reflecting telescope
Reflecting Telescope there wouldn’t be enough matter in one explosion to create all those other galaxies. And if there is already galaxies over 14 billion light years away. That would mean their matter would’ve had to travel faster then the speed of light.

  • Reflecting telescopes uses a precisely curved primary mirror to gather light. This mirror reflects the gathered light to a secondary mirror that lies in front of it. The secondary mirror then reflects it.


  • Which type is more powerful? there wouldn’t be enough matter in one explosion to create all those other galaxies. And if there is already galaxies over 14 billion light years away. That would mean their matter would’ve had to travel faster then the speed of light.


Reflectors
Reflectors there wouldn’t be enough matter in one explosion to create all those other galaxies. And if there is already galaxies over 14 billion light years away. That would mean their matter would’ve had to travel faster then the speed of light.

  • Nearly all telescopes used in current astronomical research are reflectors.







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