-I won't elaborate on this but I can say with a high degree of confidence that space-based energy weapons are very real.
-Seems odd that President Mashed Potato brains would be read in on this technology. Makes zero sense that they'd share this with him. I would cautiously view this as another example of Patriots being in control of Biden (or whomever this is).
-I have yet to hear any kind of rationale for why the color of the roof would matter in relation to a directed energy weapon. One would expect the materials for the roofs in most areas to be identical, typically asphalt shingles. Different colors have different properties in terms of reflecting certain wavelengths of light of course, but I'm wondering if the roof color/type is more of a marker for whomever is controlling the weapon to avoid. However, that is pure speculation on my part.
Has anyone heard a proper, scientific-based rationale?
I was wondering the same thing. The material would be what blocks the attack not the color. Unless it is a signal to them to miss like you said. I was thinking a metal or ceramic roof might be good but I don't know what building materials are typical in Hawaii.
The roof/umbrella/whatever color reflects the energy since a laser is a single frequency. AFAIK, there are no laser diodes that can change their resonant frequency (except maybe a small tuning) , so they are stuck with a particular frequency once built and deployed. Large laser weapons are made up of many smaller laser diodes that have their beams combined, so this would complicate changing frequency even if possible.
Here's the problem. Suppose that a target surface was 90% reflective at whatever wavelength you care. 10% would still get through and heat up the material. If you are working only at the level of tens of watts, then, yes, the "reflective" panel will survive because the leakage is within its thermal tolerance. Get high enough for weapon effects and the leakage is high enough to degrade the reflectivity and the whole process destroys the target. We studied targets that were mirror-polished metal. At open-fire intensities of a hundred watts/cm2, the leakage was enough to destroy the reflectivity. We dreamed up the possibility of a "cleanly-degrading polymer" coating, and it worked out the same way. The CDP would just evaporate and expose the bare metal again. This was 50 years ago.
But if visible light lasers had been at work, people would have seen the light flashes. No such reports.
And, having been in the business of designing space-based DEWs, I can say with a high degree of confidence that there are none.
Biden was just free-associating a popular news item with the ruins. "Mr. President, be sure to mention the 'right roof color.' It will excite the crazy types and ruin their credibility."
The color of the roof would not matter at all. Color reflectance only works partially and would not be a barrier to a powerful beam. But in any case, available laser weapon technology is all based on infrared wavelengths, and to IR a blue roof would look black.
Also, laser weapons are clear-weather weapons. They will not penetrate clouds and smoke---and targets cannot be seen through clouds or smoke. The statistics for cloud-free line-of-sight from space to ground are generally poor. (I had occasion to research the subject for a system design.) Use as an incendiary weapon has long been understood, but equally well understood as a frivolous use of a valuable asset better applied to other targets. (Once you burn up your laser fuel or reactants, all you have left is expensive junk.)
Laser weapons from space do not project from all directions, as would be needed in order to melt automobile wheels on both sides of a car.
And that's why they don't. Once you find that the design is impracticable (can't be done, for technical, logistical, or financial reasons), you sigh and roll up the drawings and wait for time to change the circumstances or boundary conditions. Lasers are not magical contrivances; they require lots of heavy, expensive technology and plenty of power supply.
Do you really think that everything that has been designed has been built? There are various levels of design. And there are whole coffee table books about the advanced aircraft designed by the Third Reich which never were built. The U.S. has plenty of abandoned or down-selected designs that either were not built or only made it to the point of a mock-up or prototype.
A few things here:
-I won't elaborate on this but I can say with a high degree of confidence that space-based energy weapons are very real.
-Seems odd that President Mashed Potato brains would be read in on this technology. Makes zero sense that they'd share this with him. I would cautiously view this as another example of Patriots being in control of Biden (or whomever this is).
-I have yet to hear any kind of rationale for why the color of the roof would matter in relation to a directed energy weapon. One would expect the materials for the roofs in most areas to be identical, typically asphalt shingles. Different colors have different properties in terms of reflecting certain wavelengths of light of course, but I'm wondering if the roof color/type is more of a marker for whomever is controlling the weapon to avoid. However, that is pure speculation on my part.
Has anyone heard a proper, scientific-based rationale?
I was wondering the same thing. The material would be what blocks the attack not the color. Unless it is a signal to them to miss like you said. I was thinking a metal or ceramic roof might be good but I don't know what building materials are typical in Hawaii.
The roof/umbrella/whatever color reflects the energy since a laser is a single frequency. AFAIK, there are no laser diodes that can change their resonant frequency (except maybe a small tuning) , so they are stuck with a particular frequency once built and deployed. Large laser weapons are made up of many smaller laser diodes that have their beams combined, so this would complicate changing frequency even if possible.
Here's the problem. Suppose that a target surface was 90% reflective at whatever wavelength you care. 10% would still get through and heat up the material. If you are working only at the level of tens of watts, then, yes, the "reflective" panel will survive because the leakage is within its thermal tolerance. Get high enough for weapon effects and the leakage is high enough to degrade the reflectivity and the whole process destroys the target. We studied targets that were mirror-polished metal. At open-fire intensities of a hundred watts/cm2, the leakage was enough to destroy the reflectivity. We dreamed up the possibility of a "cleanly-degrading polymer" coating, and it worked out the same way. The CDP would just evaporate and expose the bare metal again. This was 50 years ago.
But if visible light lasers had been at work, people would have seen the light flashes. No such reports.
It's hard to see a laser beam during the day. You can see where it ends bur you usually can't see it's trajectory.
Also CNN would be all over this if anyone reported it. 🙄🤪
And, having been in the business of designing space-based DEWs, I can say with a high degree of confidence that there are none.
Biden was just free-associating a popular news item with the ruins. "Mr. President, be sure to mention the 'right roof color.' It will excite the crazy types and ruin their credibility."
The color of the roof would not matter at all. Color reflectance only works partially and would not be a barrier to a powerful beam. But in any case, available laser weapon technology is all based on infrared wavelengths, and to IR a blue roof would look black.
Also, laser weapons are clear-weather weapons. They will not penetrate clouds and smoke---and targets cannot be seen through clouds or smoke. The statistics for cloud-free line-of-sight from space to ground are generally poor. (I had occasion to research the subject for a system design.) Use as an incendiary weapon has long been understood, but equally well understood as a frivolous use of a valuable asset better applied to other targets. (Once you burn up your laser fuel or reactants, all you have left is expensive junk.)
Laser weapons from space do not project from all directions, as would be needed in order to melt automobile wheels on both sides of a car.
"I designed space based DEWs, but I can assure you they don't exist"
Kekkkkkkkk
And that's why they don't. Once you find that the design is impracticable (can't be done, for technical, logistical, or financial reasons), you sigh and roll up the drawings and wait for time to change the circumstances or boundary conditions. Lasers are not magical contrivances; they require lots of heavy, expensive technology and plenty of power supply.
Do you really think that everything that has been designed has been built? There are various levels of design. And there are whole coffee table books about the advanced aircraft designed by the Third Reich which never were built. The U.S. has plenty of abandoned or down-selected designs that either were not built or only made it to the point of a mock-up or prototype.
wasted career then.