Questions tagged [clock]
Questions regarding devices used to track and display the current time.
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Always orient a sundial towards polar north?
I had a horizontal sundial made specially for my latitude (approx. 38° N). The default correct way to orient a sundial (in the northern hemisphere) is with the gnomon pointing towards polar north. The ...
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How can I build a gear-based mechanism to calculate solstices, equinoxes, and cross-quarter dates?
I realize there are boundless amounts of information as to the formulas to calculate solstices, equinoxes, and cross-quarter days, but I would like to design a gear-based mechanical solution for the ...
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Parker Solar Probe and clock correction
Due to the dynamic changes in speed and the value of the gravitational field in which the Parker Solar Probe stays, the clocks should have the errors due to relativistic effects.
https://physics....
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Pendulum clock correction
I'm trying to solve this task:
The pendulum clock was transported from the Earth's equator to Antarctica (in the vicinity of the southern geopole) for scientific experiments. Estimate the pendulum ...
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Can I use the Tokyo Skytree as clock?
After my observation today at the Skytree in Tokyo, I am wondering if this building could be used as a giant sundial?
As an aside, it would be interesting to consider how the Skytree might be used ...
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Sundial (solar clock) in a binary star system
What would a sundial look like in a binary star system? What is the path drawn by the shadows?
It probably depends on the system, the sizes of the stars, their distance... If you know a binary star ...
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Is it possible to create a traditional clock solar system?
Is it possible to create the following system of satellites?:
Place a satellite that orbits the some object X, once per day. Call it D.
Place a satellite that orbits D, once per hour. Call it H
Place ...
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what is the time mentioned after date (1962-07-03+02:00) the +02:00? [closed]
i was retrieving a some personalities birthday date through computer programming
when i retrieve a person's birthday the result was
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Hour angle sunrise calculation problem
I am trying to program a sunrise/sunset calculator using this formula tutorial.
If you follow the steps, eventually you get to this formula for "H" (the "hour angle"):
$H = \arccos( [\sin(-0.83) - \...
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How would the pocket cellular clock work?
In a museum in Lviv, I saw a pocket cellular clock. I don't have a photo, but it was a small disc that had 2 or 3 filaments in it which were pointed at the stars (one of them was Andromeda, I think). ...
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