Gadgetory

there aren't actually too many more things more difficult than trying to see your surroundings in a pitch-black room and while you can always feel your way around and hope that you don't trip ahead first into the toilet there are times that actually being able to see in the dark is a must fortunately night vision isn't just a thing in your favorite first-person shooter it's present in everything from surveillance cameras to military periscopes to ordinary smartphones in fact part of the reason night-vision has so many applications is because it's not just one specific piece of technology rather it comes in several different forms that can be deployed depending on use case but what many people think of when they hear the words night vision is something called image intensification or image enhancement this is that stereotypical green form of night vision that you might associate with the military or what you see in action movies speaking of which that green color is used on purpose because your eyes are more sensitive to green than other colors image enhancement works by being able to detect low levels of light and then amplify it when photons the tiny particles that make up light enter an image enhancer they first hit a special layer called a photo cathode which releases electrons these electrons then hit a second layer called a microchannel plate which multiplies the electrons before they hit the phosphorous Crean why are these things also epic well that then converts them back into light because there are now so many more electrons you get a brighter image so you'll have an easier time getting into someone's base and killing all their nudes but hold on a second what if there isn't enough light for thermal enhancers to see at all this is where thermal imaging comes in instead of detecting light thermal cameras detects heat coming off of different objects since they can see infrared light you see heat causes things to emit photons in the infrared or IR spectrum and although humans can't see infrared light these special cameras take advantage of it in a number of different ways they are cameras produce images called thermo grams which sometimes look rainbow-colored where the different colors represent different temperatures Therma grams are useful for everything seemingly from medicine to construction but they're very specifically handy for night-vision since it's really easy to pick out different objects such as people or animals due to their different colors standing out on the screen thermal cameras often can't achieve the same level of detail as their image enhancing counterparts but they have a big advantage of being able to pick out things that might be hard to see with a normal image enhancer for example a firefighter trying to locate people that need to be rescued in a burning building a hunter picking out prey deep in the woods hiding behind foliage or cops trying to locate that hiding fugitive and speaking of thermal imaging some cameras can even create their own infrared light in a process called active illumination where they actually light up their surroundings with IR radiation because this additional infrared energy reflects off of whatever the camera is pointed at this strategy can result in much higher resolution images great for things like surveillance cameras where you really want to get a positive ID on that perp that tried to steal your slushie machine what a downer audible.com is the leading provider of audiobooks with more than 180,000 downloadable titles across all types of literature including fiction nonfiction and periodicals audiobooks are great to listen to when you're doing whatever programming playing games going to school working out doesn't matter basically anywhere you have your smart phone for our audience members audible is offering a free 30-day trial just go to audible.com slash tech quickie and browse the over as I've already said 180,000 audio programs there might be some audiobook about stealing a portable slushie machine but I've been listening to Game of Thrones it's absolutely fantastic no spoilers the current movies are the current show is kind of running right now so there's a lot of spoilers online too so just a heads up to avoid those but yeah if you're like old enough I I'd listen to I'd listen to Game of Thrones audiobook speaking of things I do like the video or you know dislike the video if you want to like be the other side in a game of Thrones war you know that analogy sucked gonna roll with it don't forget to go to channel superfund they're pretty cool don't forget to leave it on below if you're like wow you should probably have better analogies and segues that would also be fine or you could be like here's an idea for another video that would be even more fine and yeah if you want to see more just come back it's cool