We just moved into a new house and we have a hardwired smoke detector chirping incessantly. I know that means the battery backup isn't present/working, except that adding a battery never stops the chirping.However, right next to the chirping smoke detector is a newer, *working* smoke detector. My guess is that the previous owner couldn't fix the hardwired smoke detector either and decided to just live with the incessant chirping and installed a second one right next to it.So, skipping the caveats of the potential safety hazards of disconnecting a hard-wired smoke detector, what to I have to do to make the chirping stop? How can I disconnect this now-redundant, loud smoke detector?
thermal vision works by detecting radiated heat, so if you reflect the heat away from the camera/detector the camera will not be able to see you. You can reflect heat using a reflective surface e.g tin foil, but this would also reflect heat towards the camera. The best way to appear invisible is to coat one side of the shiny material with a black material (this absorbs radiated heat) and wear the thing with the shiny surface facing inwards, so the black surface is on the outside. This will stop radiated heat getting to the camera.
whenever i would just use an old projector i would just shoot the image on a white wall
