Sunrise or Sunset
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Re: Sunrise or Sunset
Sunset from Cross Mountain Trail after climbing Gladstone.
- supranihilest
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Re: Sunrise or Sunset
La Sal Mountains from 9er Snipe Mountain on Sunday evening.
Re: Sunrise or Sunset
Solar flare near the winter solstice sunrise over Mesa Verde.
Last edited by osprey on Thu Oct 07, 2021 2:31 pm, edited 1 time in total.
"Rocks, mountains, snow and ice: what more do we desire?" - Reinhard Karl
“I breathed in the air on the summit and liked it better than the air below.”
“I breathed in the air on the summit and liked it better than the air below.”
Re: Sunrise or Sunset
From Mount Index, WA
Lone Peak Cirque, UT
Not mountainy, but on my way down from a hill. Komiza
Lone Peak Cirque, UT
Not mountainy, but on my way down from a hill. Komiza
"The road to alpine climbing is pocked and poorly marked, ending at an unexpectedly closed gate 5 miles from the trailhead." - MP user Beckerich
- WolverPete
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Re: Sunrise or Sunset
Last week took a hike up to a lookout point to catch the sunrise. Sunrise over Colorado Springs on the hike up. And then Pikes Peak.
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Re: Sunrise or Sunset
Washerwoman
Candlestick
Candlestick
"The road to alpine climbing is pocked and poorly marked, ending at an unexpectedly closed gate 5 miles from the trailhead." - MP user Beckerich
- Barnold41
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Re: Sunrise or Sunset
Dunno if it's been mentioned, but it's interesting that we still refer to sunrise and sunset as if we live in a geocentric society. We have long understood that this is not the case and yet we continue to pretend that the sun is "rising" in the east and "setting" in the west.
Re: Sunrise or Sunset
It’s called a “Frame of Reference” in physics. (See image below for an example) Of course we are a geocentric society since we are all on this geoid we call Earth which is moving/rotating through the vacuum of space. Since we can’t feel the Earth’s movement, from our frame of reference we are stationary and it is the Sun that is moving/rising/setting. This Scientific American webpage (https://www.scientificamerican.com/arti ... earth-mov/) states that:Barnold41 wrote: ↑Tue Oct 19, 2021 10:02 am Dunno if it's been mentioned, but it's interesting that we still refer to sunrise and sunset as if we live in a geocentric society. We have long understood that this is not the case and yet we continue to pretend that the sun is "rising" in the east and "setting" in the west.
- Earth Rotates at ~1000mph (at the equator),
- Earth orbits the Sun at ~67,000mph,
- Our solar system orbits the center of our galaxy at 490,000mph,
- Our galaxy is moving towards the "Great Attractor" at 1000km/s.
- The closest we can come to a "universal frame of reference" is the CBR (Cosmic Background Radiation), which permeates all space, and we are moving 390km/s with respect to it.
Last edited by geojed on Tue Oct 19, 2021 12:47 pm, edited 6 times in total.
• It's by getting away from life that we can see it most clearly... It's by depriving ourselves of the myriad of everyday experiences that we renew our appreciation for them...I've learned from my experiences in the mountains that I love life. — Dave Johnston
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• Mountains are not climbed merely to reach a geographical location — but as personal and spiritual challenges to the participants. — David Stein
- timewarp01
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Re: Sunrise or Sunset
I mean if you really want to get pedantic about it a heliocentric model has no intrinsic merit over a geocentric one as far as physics is concerned. You can construct a perfectly valid set of physical rules for a non-inertial reference frame if you want to, your kinematics equations will just have a few extra terms. It is mathematically impossible to prove that the Earth is not the center of the universe. You can read more about that here: https://en.wikipedia.org/wiki/Principle_of_relativityBarnold41 wrote: ↑Tue Oct 19, 2021 10:02 am Dunno if it's been mentioned, but it's interesting that we still refer to sunrise and sunset as if we live in a geocentric society. We have long understood that this is not the case and yet we continue to pretend that the sun is "rising" in the east and "setting" in the west.
- Barnold41
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Re: Sunrise or Sunset
geojed wrote: ↑Tue Oct 19, 2021 10:23 am Umm, it’s called a “Frame of Reference” in physics. (See image below for an example) Of course we are a geocentric society since we are all on this geoid we call Earth which is moving/rotating through the vacuum of space. Since we can’t feel the Earth’s movement, from our frame of reference we are stationary and it is the Sun that is moving/rising/setting.
074425AE-E216-446B-997E-FB043A3F375C.jpeg
This Scientific American webpage (https://www.scientificamerican.com/arti ... earth-mov/) states that:
- Earth Rotates at ~1000mph (at the equator),
- Earth orbits the Sun at ~67,000mph,
- Our solar system orbits the center of our galaxy at 490,000mph,
- Our galaxy is moving towards the "Great Attractor" at 1000km/s.
- The closest we can come to a "universal frame of reference" is the CBR (Cosmic Background Radiation), which permeates all space, and we are moving 390km/s with respect to it.
timewarp01 wrote: ↑Tue Oct 19, 2021 11:57 am I mean if you really want to get pedantic about it a heliocentric model has no intrinsic merit over a geocentric one as far as physics is concerned. You can construct a perfectly valid set of physical rules for a non-inertial reference frame if you want to, your kinematics equations will just have a few extra terms. It is mathematically impossible to prove that the Earth is not the center of the universe. You can read more about that here: https://en.wikipedia.org/wiki/Principle_of_relativity
I don't have much experience in physics, so thanks for sharing this information.
Re: Sunrise or Sunset
Both have their benefits! Keep the pics coming
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- Mark Curtis
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Re: Sunrise or Sunset
Ridgeline extending from Cumbres Pass by Mark Curtis, on Flickr
Final rays silhouettes by Mark Curtis, on Flickr
Final rays silhouettes by Mark Curtis, on Flickr
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