Recent content by physicsguy13
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Physics The Fields of Particle Physics and Astrophysics/Cosmology
Really, I would like to know both, but career outlook is more important to me.- physicsguy13
- Post #3
- Forum: STEM Career Guidance
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Undergrad How can scientists measure the speed of light?
Thank you Tiny-Tim! I believe I understand it now!- physicsguy13
- Post #17
- Forum: Optics
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Physics The Fields of Particle Physics and Astrophysics/Cosmology
I still have a long time to decide, but I am interested in the fields of particle physics, astrophysics, and cosmology. Here are my questions about them: 1. What field has the best outlook for the future? 2. Is there a degree that provides flexiblitiy in the choice? 3.What fields have the most...- physicsguy13
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- Fields Particle Particle physics Physics
- Replies: 5
- Forum: STEM Career Guidance
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Undergrad How can scientists measure the speed of light?
Also, I changed my mind. I will only post questions.- physicsguy13
- Post #12
- Forum: Optics
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Undergrad How can scientists measure the speed of light?
If light is not affected by time dilation, are there any "light clocks" to measure time exactly without the effects of time dilation? Or am I still getting the concept wrong?- physicsguy13
- Post #11
- Forum: Optics
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Undergrad How can scientists measure the speed of light?
I require more clarification. If I am not actually moving at 99% of c, is it because the frame of reference is moving at 99% of c? If so, would the frame of reference would see me as moving slower than c?- physicsguy13
- Post #7
- Forum: Optics
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Undergrad How can scientists measure the speed of light?
I think I will come back to physics forum when I am older. For now I will only look at posts, not post myself or reply. Thank you for clearing up my question, though.- physicsguy13
- Post #5
- Forum: Optics
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Undergrad How can scientists measure the speed of light?
Is it because time dillation only affects objects with mass, and photons do not?- physicsguy13
- Post #4
- Forum: Optics
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Undergrad How can scientists measure the speed of light?
Please explain this to me Drakkith. I'm only 12 years old.- physicsguy13
- Post #3
- Forum: Optics
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Undergrad Why are the centers of galaxies so bright?
What did I say wrong then?- physicsguy13
- Post #7
- Forum: Astronomy and Astrophysics
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Undergrad How can scientists measure the speed of light?
I know the textbooks say light travels 186,282.4 mps, but if time slows for a very fast object, how do scientists really know the speed of a photon?- physicsguy13
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- Light Measure Speed Speed of light
- Replies: 20
- Forum: Optics
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Undergrad Why are the centers of galaxies so bright?
I'm sorry, I mispoke. Unless the star is very close to the black hole, it is likely that some of the light will come in our direction.- physicsguy13
- Post #5
- Forum: Astronomy and Astrophysics
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Graduate Julian Barbour on does time exist
If time did not exsist, what would prevent everything from happening at once?- physicsguy13
- Post #138
- Forum: Beyond the Standard Models