Here's one way to look at it, as a photon jumping from some virtual particles to others.
The jumping time is zero! Also this paper calculates free space permeability and permittivity.
https://www.epj.org/images/stories/news/2013/epj_d_2a-03-13.pdf
The jumping time is zero! Also this paper calculates free space permeability and permittivity.
https://www.epj.org/images/stories/news/2013/epj_d_2a-03-13.pdf
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Photons propagate in a "leapfrog" fashion, with instantaneous leaps between ephemeral fermion-antifermion pairs which exist in the quantum vacuum?
Well that certainly clears up the mystery of the propagation of light! 🙄
Perhaps I'll curb my enthusiasm until the promised experimental test of this prediction!
Well that certainly clears up the mystery of the propagation of light! 🙄
Perhaps I'll curb my enthusiasm until the promised experimental test of this prediction!
I’ll have a read of that paper - thanks for posting.
(So much stuff to read - so little time. Grass has to be cut, dog walked, PCB’s to be assembled . . . The list is endless 🙂 )
(So much stuff to read - so little time. Grass has to be cut, dog walked, PCB’s to be assembled . . . The list is endless 🙂 )
Yes, thanks rayma!
I tried to edit in a 🙂 to counterbalance my 🙄, but I was too late!
Who knows where the study of the quantum nature of a vacuum may lead us.
I tried to edit in a 🙂 to counterbalance my 🙄, but I was too late!
Who knows where the study of the quantum nature of a vacuum may lead us.
All this stuff on the frontiers of physics is highly speculative, but still interesting. Physicists think about
such things when they have the time, but don't publish much of it. The Higgs was such a speculation
for many years, so some do bear fruit eventually.
such things when they have the time, but don't publish much of it. The Higgs was such a speculation
for many years, so some do bear fruit eventually.
In the spirit of keeping this thread alive:
All systems are go for the first UK spaceport to be located on the A'Mhoine Peninsula in Sutherland, in the far north of Scotland.
Scottish court rejects billionaire's challenge against UK spaceport | Space
All systems are go for the first UK spaceport to be located on the A'Mhoine Peninsula in Sutherland, in the far north of Scotland.
Scottish court rejects billionaire's challenge against UK spaceport | Space
It is intended that a new generation of small, vertical launch rockets will fly micro-communication and Earth observation satellites into orbit.
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This looks like, little sense to me.
The most effective launching locations, cost wise, are close to the equator. Less fuel, less dead weight, launching to the East.
The most effective launching locations, cost wise, are close to the equator. Less fuel, less dead weight, launching to the East.
It's an ideal location for launching satellites into the polar orbits required for Earth observation.
Ah - makes sense! I was also wondering why it was not at the equator - for earth observation you if course want to orbit longitudinally.
Also, you will be aware that the geosynchronous orbit long used for communications is overcrowded.
A sophisticated system of inter-communicating, polar orbiting satellites can solve that problem.
A sophisticated system of inter-communicating, polar orbiting satellites can solve that problem.
That link provides comprehensive information about satellite numbers - quite staggering!
And, no matter where humankind ventures, we always leave our rubbish behind! 🙁
And, no matter where humankind ventures, we always leave our rubbish behind! 🙁
With an apocalyptic threat: A debris chain reaction, turning near space into a junkyard.
Imagine some debris hitting hard a satellite to explode into many debris, then many of these debris hitting other satellites and so on.
All satellites destroyed.
Mankind trapped on Earth bound with high speed junk preventing any escape.
Imagine some debris hitting hard a satellite to explode into many debris, then many of these debris hitting other satellites and so on.
All satellites destroyed.
Mankind trapped on Earth bound with high speed junk preventing any escape.
Mankind trapped on Earth!
At least the Alien Intelligencies out there will be thankful for that! 😉
At least the Alien Intelligencies out there will be thankful for that! 😉
Elon Musk hasn’t helped by launching dozens of satellites for internet coverage as well as a Tesla car.
On both counts, quite objectionable IMV.
On both counts, quite objectionable IMV.
In the attached computer generated image, our planet is almost obscured by dots representing individual pieces of debris in low Earth orbit.
95% of the objects in the illustration are orbital debris i.e. not functional satellites. Note the clearly defined geosynchronous ring.
See more images, including debris damage to the Hubble Space Telescope, here: ARES | Orbital Debris Program Office Photo Gallery
95% of the objects in the illustration are orbital debris i.e. not functional satellites. Note the clearly defined geosynchronous ring.
See more images, including debris damage to the Hubble Space Telescope, here: ARES | Orbital Debris Program Office Photo Gallery
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If there’s so much garbage in space, why don’t we see an orbital landfill circling our planet in actual photographs of the Earth?
It's to do with perspective - the things that humans build are tiny compared to the vastness of our planet.
If Earth's orbit is so crowded, why don't we see space junk in photos of the Earth?
It's to do with perspective - the things that humans build are tiny compared to the vastness of our planet.
If Earth's orbit is so crowded, why don't we see space junk in photos of the Earth?
When we look at the Great Pacific Garbage Patch (GPGP), we can only hang our heads in shame.
Great Pacific Garbage Patch
| National Geographic Society
At least we are trying to clean up the plastic waste in the Pacific.
Perhaps we'll fire it into space! 😱
Great Pacific Garbage Patch
| National Geographic Society
At least we are trying to clean up the plastic waste in the Pacific.
Perhaps we'll fire it into space! 😱
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