Dr. Brian Keating

Put a pencil in a clear glass of water, same phenomenon will happen. That's refraction. It's the bending of light by what's called a dielectric or just a medium that's transparent or translucent. And you can do that in a way that you shape the wave of light coming in that will be magnified. And that's in fact what a telescope does. Tele means distance, scope means viewer.

Put a pencil in a clear glass of water, same phenomenon will happen. That's refraction. It's the bending of light by what's called a dielectric or just a medium that's transparent or translucent. And you can do that in a way that you shape the wave of light coming in that will be magnified. And that's in fact what a telescope does. Tele means distance, scope means viewer.

So a telescope really means distance viewer. A microscope means small thing viewer. And so this was kind of revolutionary to use it for scientific purposes. Galileo did other things. We just take these for granted. We got all these cool cameras here. These are all refracting telescopes. You can see the lens in one. You can see that it's on a tripod. Galileo invented the tripod.

So a telescope really means distance viewer. A microscope means small thing viewer. And so this was kind of revolutionary to use it for scientific purposes. Galileo did other things. We just take these for granted. We got all these cool cameras here. These are all refracting telescopes. You can see the lens in one. You can see that it's on a tripod. Galileo invented the tripod.

So a telescope really means distance viewer. A microscope means small thing viewer. And so this was kind of revolutionary to use it for scientific purposes. Galileo did other things. We just take these for granted. We got all these cool cameras here. These are all refracting telescopes. You can see the lens in one. You can see that it's on a tripod. Galileo invented the tripod.

We take these things for granted, but people didn't realize that.

We take these things for granted, but people didn't realize that.

We take these things for granted, but people didn't realize that.

Yeah.

Yeah.

Yeah.

I think that they were extremely, as they are now, I have great colleagues that are from the Netherlands, they were obsessed with high quality, as Germans are. You know, they're very similar to Germans, into very precise instrumentation and high quality.

I think that they were extremely, as they are now, I have great colleagues that are from the Netherlands, they were obsessed with high quality, as Germans are. You know, they're very similar to Germans, into very precise instrumentation and high quality.

I think that they were extremely, as they are now, I have great colleagues that are from the Netherlands, they were obsessed with high quality, as Germans are. You know, they're very similar to Germans, into very precise instrumentation and high quality.

It's interesting to note that glasses were only really invented in some sense because of the fact that there was an existing standard for human visual acuity. Okay, so we all know we go to the eye doctor.

It's interesting to note that glasses were only really invented in some sense because of the fact that there was an existing standard for human visual acuity. Okay, so we all know we go to the eye doctor.

It's interesting to note that glasses were only really invented in some sense because of the fact that there was an existing standard for human visual acuity. Okay, so we all know we go to the eye doctor.

Eyeglasses, yeah. So we know today that when you go to the eye doctor, there's an eye chart, right?

Eyeglasses, yeah. So we know today that when you go to the eye doctor, there's an eye chart, right?

Eyeglasses, yeah. So we know today that when you go to the eye doctor, there's an eye chart, right?