A Super Sensor...
You read about these improvements in optics where they slow or even stop light, or entanglement, and about how neutrinos would go through a billion or more miles of lead without interacting with any of the lead atoms. Consider what might be achieved if we had a beam that was a combination or blend of light and a neutrino, it would conceivably be somewhere inbetween the light and the neutrino, it could go through more matter like the neutrino, but it would be sticky enough and more like the light to be controlled, in emission, combinations with the mass to be scanned, and also with enough substance to be received by sensors on the other side, but the machines to send and receive the beam wouldn't have to be so huge like in current physics machines.

This would be the sensor of all sensors. Because neutrinos go through all mass without much interaction, if the beam was made the right power for the focus (say to find people on the other side of the world for a census) all the information of the mass could be seen, even from one machine. This could have medical use and it would make a good 3d sensor for copies, and it would make exact census possible.

Another use would be for saving data. With a cyber crash the sensor would find all the information and use it to make a virtual machine that would simulate the complete machine, hard disk, wires, chips, "run" the machine and collect all the data, this would be good for old LP's and would completely solve hardware data saving problems. With no reader for a disc in 1000 years, if a virtual copy of the machine was saved the data would be saved. It may seem if the ray was of low power this would be a real IP and security problem; however for the beam to reach inside the machine to find the data from the outside would seem to always need a ray of about the same energy as the atoms and molecules of the machine in order to interact with it (an antenna of unlike wavelength to the source won't resonate with the beam) so this theoretical beam would be mostly shieldable and would only find atoms and molecules at close distance. It would find larger size masses of lower power without shielding, like a census.

This would also be like Einstein's low energy beam he conjured up to unify quantum foaminess, it was low in energy so it wouldn't change the observed matter much, but not so low no change would take place all would be unified so Conservation of Energy, the 1st Law, would be obeyed. For more about this, CLICK HERE.
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Thus small changes by modifying light and neutrinos might be of much import.

There are four possible ways this might be achieved;

Neutrinos might be blended with the heavier light;

They might be blended with many neutrinos, say 20 or 30, to add the adhesion which must exist or they would expand out without limit.

SOLITONS, known since the 1830's. This is about how waves have two types of internal forces, forces that cause expansion, and forces to cause implosion, both must be present for the wave by balance not to expand continually by implosion or expansion. The soliton use of waves that move at the right wavelength perhaps might be used. With solitons the wave component that would otherwise cause it to expand is instead replaced by the timing of motion of the wave so the force of adhesion wins out, using the same motif that's made calls to foreign lands low cost for long distance because the wave doesn't lose so much power over great distances, by this the neutrinos may perhaps be more adhesive, and so of worth to machines like sensors that could see the inside of say, the Earth or Mars.

If these methods were unfeasible, a fourth way to the machines like this could be via antilight. Light slows down through matter as it's heavier, anti light, being antimatter, speeds up as it's lighter and thus it would be a better beam for like medical use because it would be more like the neutrino, with lower and lower power it might go through more and more mass, with the interaction adjusted to more optimal energies, X rays without so much radiation and for other uses.
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