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 head 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 photocathode which releases electrons
these electrons then hit a second layer called a microchannel plate which mult
mullies the electrons before they hit the phosphor screen why are these things
all so epic 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 dudes 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 detect
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 IR cameras produce images called
thermograms which sometimes look rainbow colored where the different colors
represent different temperatures thermograms are useful for everything
seemingly from medicine to construction but they're very specific 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 camera where you really
want to get a positive ID on that per that tried to steal your slushy
machine what a downer audible.com is the
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just go to audible.com techquickie and browse the over as I've already said 18
180,000 audio programs there might be some audio book 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 or 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 i' listen to I'd listen to Game of Thrones Audi book
speaking of things I'd 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 uh that analogy
sucked going to roll with it don't forget to go to Channel Super Fun they're pretty cool don't forget to
leave a suggestion down below if you're like wow you should probably have better
analogies and Segways 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 that's cool