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originally posted by: sadang
So GaryN keep your current way because you are close to the intimate nature of the Universe than most around here.
So many are not really knowing what is light,
In typical sun sensors, a thin slit at the top of a rectangular chamber allows a line of light to fall on an array of photodetector cells at the bottom of the chamber. A voltage is induced in these cells, which is registered electronically. By orienting two sensors perpendicular to each other, the direction of the sun can be fully determined.
The sun sensor is operated based on the entry of light into a thin slit on top of a rectangular chamber whose bottom part is lined with a group of light-sensitive cells. The chamber casts an image of a thin line on the chamber bottom. The cells at the bottom measure the distance of the image from a centerline and determine the refraction angle by using the chamber height.
The cells are operated based on the photoelectric effect. They convert the incoming photons into electrons and hence voltages which are in turn converted into a digital signal.
originally posted by: wildespace
That stars (or any other visible light) are invisible in space is a stupid "alternative theory", mostly propagated by Eric Dollard (and our own GaryN on ATS), and is based on misunderstanding and misrepresentation.
originally posted by: ConnectDots
Also helpful: The Description accompanying the YouTube video.
So it still needs photons of light to operate.
a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.
As for the mainstream scientists being aware that you cannot supposedly see light in space, how is it that this notion is completely absent from all educational, scientific and technological literature and papers?
Or do they have a secret education program and a secret set of science/techology papers that they base their work on?
originally posted by: GaryN
a reply to: wildespace
Photons are a 'catch all' term, again nobody really knows what a photon is.
The Sun sensors are fairly straightforward, but the size and accuracy of the slit or pinhole has to be so precise that you need to buy one from the manufacturers, you couldn't make one that would see anything in space.
The EM radiation from the Sun is not of the configuration that our eyes could detect, and the sensors involve science based on coherence and fourier transforms. Put simply, it is the slit/pinhole that creates the photons the sensor needs to operate. Without the slit/pinhole. the detector would see nothing.
It can not be admitted as all the models of astronomy will have to be thrown out. Most of what we are told are stars out there really are not stars. The instruments are likely detecting the radiant energy from the atmospheres or surfaces of planets or moons. The radiant energy reaches all the way up to gamma rays, which even the Moon produces. As the gamma rays interact with matter, the energy levels decrease due to repeated collisions, so then we have x-ray, EUV, far UV, and UV. Earths atmosphere is converting this solar radiation to visible light of the type our eyes can detect. Some of it is scattered back out into space, which is why it can be seen from space for a certain distance. Yes choos, the type of light our eyes see does travel in the vacuum, for a similar distance that it will travel within Earths atmosphere, but it will not be visible for ever as the wavefront becomes planar with distance, and our eyes can not focus it. No stars are visible from space because they are too far away. Only the coherent light from electronically created methods will travel great distances in the vacuum, it becomes self focusing. But, at the other end, you need an atmosphere or special instruments to convert that radiation back to visible light. Why nobody believes the astronauts I can't figure out. They say it is scarily black from Earth orbit when looking away from Earth, and the Apollo astronauts say nothing at all is visible from cislunar space and they are the only ones that know this.
Yes, and it is mostly classified, military eyes only, national security and all that. The only way to figure it all out is by examining what NASA does not tell or show us, such as a photograph of the Sun from clear space. Can't be done.