I have interconnected BRK smoke detectors and they needed to be updated. There's supposed to be a green light on when they have power, but none of them do. All my breakers are not-tripped, so I don't know how to figure out how to get power back.
No surface can be 100% reflective. If you shot, say a laser at the most reflective surface possible, the reflected light would be less than the original beam. There is no material that can allow light in and no light out. If you did create the sphere, you would need a little hole to aim a light source at, then you would have to close it quickly with the light source still shinning at the hole. Theoretically, with a 100% reflective surface and a vacuum inside the sphere, it would bounce around forever, until you broke it. A small flash would be seen, but the light energy would not compound and blow up.
This is one of those theoretical questions. You are asking if it is possible to trap photons- light particles. The true answer is probably way more complicated than the perfect box and mirror and probably will, if and when it happens, require some type of restraining field, either electrical or magnetic.
Ahbut if people can see into the room from the other side of the two way mirror, light must leak out. Hey - nice hat to the person above!
Well, if you had a perfect one way mirror that let light through one side but not the other, then yes, it's possible in theory. But then again, so are perpetual motion machines. It's a case where theory tells us that such a thing could happen, but in reality, we could never find a one way mirror that's perfectly reflective on the other side (it would let some light through, and absorb some light too). The only way to trap light is with a black hole. A black hole has an escape velocity that exceeds the speed of light. Basically, not even light can travel fast enough to escape the gravitational pull of a black hole (hence the black bit). Now what happens inside a black hole is anyone's guess. Hope this helps.
I agree with Johnny completely, I just wanted to throw in a tid bit about helmets. If you're going to spend any kind of chunk of change on any one item, make it your helmet. Dont shy away from pricier ones thinking its the brand or graphics thats causing the inflation (though yes you will pay more for graphics.. however that doesnt add up to much, usually a 10-50 dollar increase depending on which brand. For example, shoei helmets have their graphics hand applied) its all in how the helmet is made, and from what materials. Neck fatigue SUCKS, and the lighter your helmet physically is the less chance you have of experiencing that. What would you say your head is worth? Thats what you pay for a helmet. I dont know where you're at, the states? Cause holy, 750 for a set of riding gear thats pretty good. Youd be looking at closer to a grand here in Canada.
