All right, in this T-Rex talk, we're going to be talking about an intro to thermal imaging.

Thermal cameras, thermal sites, different types of thermal optics.

And this is going to be a very introductory talk.

I don't have a huge amount of deep experience with thermal devices, but I do have a lot of wide experience with thermal devices, industrial

ones, commercial ones, drone ones, several different things, and, but I feel like an introduction

would be good, because everybody on the internet is talking about thermal right now, and I blame

grand thumb. In his urban survival video that I mentioned in the last podcast, he said this.

If you look at any of the conflicts going on right now, everybody's using thermal.

If you don't have thermal, you're going to die to somebody who does use thermal.

Which is actually a really good thing.

I'm really glad that that is happening, that it's getting the attention that it needs and deserves. And this is a really basic

introduction to what it is, how it works, different types, etc. And one of the main things

that I see on the internet is people arguing over terms, people saying thermal imagers are seeing an IR, and

other people say, no, that's what night vision does. And unfortunately, both sides are actually

right. As you know, visible light goes from about 400 nanometers to 700 nanometers. Those shorter

wavelengths are your ultraviolet, indigo, blue,

and then your longer wavelengths are, you know, your red.

And then beyond that, you get your infrared.

So your regular night vision, your image intensifier tubes,

are going to see up into about 1,000 nanometers of what they call

near infrared. And those near infrared photons act a lot like visible photons. They act like light.

They come from light sources and bounce off of stuff, just like regular light does. It's just light

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