Search found 4 matches
- Sun Feb 05, 2017 6:12 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Galaxy distribution
- Replies: 2
- Views: 1393
Galaxy distribution
I haven't been able to find an answer, so need some guidance. As distance from the observer increases, the surface area of a sphere around the observer increases. A smooth distribution of objects would mean that a count of those objects would increase as the square of their distance. Thus my questio...
- Tue Mar 24, 2015 4:14 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Gravity Waves
- Replies: 4
- Views: 37862
Re: Gravity Waves
Thanks. My confusion is based on the interpretation of expanding space as causing the "stretching" of the CBR wavelength over time. If expanding space can stretch wavelength, I assumed a gravity (gravitational?) wave might do the same thing. If so, that could "hide" the varying d...
- Sat Mar 21, 2015 5:51 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Gravity Waves
- Replies: 4
- Views: 37862
Gravity Waves
Gravity wave interferometers are built to detect tiny distance changes between mirrors. Is this because it would take light more time to travel between them if the distance increases, or because the total number of wavelengths of light between them would change, with a passing gravity wave? I ask be...
- Tue Feb 24, 2015 5:19 am
- Forum: Starship Asterisk: Handbook
- Topic: What do you think the unusual plumes on Mars are?
- Replies: 76
- Views: 782142
Re: What do you think the unusual plumes on Mars are?
Meteorite impacts.