Dr. Brian Keating

So that means a very small, a very large change in the distance in the Earth would change the building size dramatically, could reduce it to zero basically. But when you compare it to something that's close on the horizon, your brain has something visually to compare it to. When it's overhead, zenith or whatever, It doesn't have anything to compare it to, so you're just looking at it.

But you can always measure it, and you can prove to yourself it's always the same size. It's about the size of your pinky fingernail held at arm's length, same size as the sun. And interestingly enough, it's the same— You said one degree. It's half a degree. Half a degree. Half a degree, yeah.

But you can always measure it, and you can prove to yourself it's always the same size. It's about the size of your pinky fingernail held at arm's length, same size as the sun. And interestingly enough, it's the same— You said one degree. It's half a degree. Half a degree. Half a degree, yeah.

But you can always measure it, and you can prove to yourself it's always the same size. It's about the size of your pinky fingernail held at arm's length, same size as the sun. And interestingly enough, it's the same— You said one degree. It's half a degree. Half a degree. Half a degree, yeah.

Fun fact, which is bigger, the width of a rainbow or the width of the moon? And is a rainbow wider than a half a degree? You ever seen a rainbow?

Fun fact, which is bigger, the width of a rainbow or the width of the moon? And is a rainbow wider than a half a degree? You ever seen a rainbow?

Fun fact, which is bigger, the width of a rainbow or the width of the moon? And is a rainbow wider than a half a degree? You ever seen a rainbow?

Roy G. Biv, yeah.

Roy G. Biv, yeah.

Roy G. Biv, yeah.

It's the same size. Okay. It's the size of the sun. Okay. So it's a trick question. Exactly. That's right.

It's the same size. Okay. It's the size of the sun. Okay. So it's a trick question. Exactly. That's right.

It's the same size. Okay. It's the size of the sun. Okay. So it's a trick question. Exactly. That's right.

There you go. Professor Faust is the test.

There you go. Professor Faust is the test.

There you go. Professor Faust is the test.

Well, I'll tell you something really cool. If you go to the South Pole, which is oversubscribed by a factor of 10 to 1, 10 times as many people want to spend their nine months of their year minimum at the South Pole than we have room for to actually do work at the South Pole. Which means 10 people total, right? No, there's 45 people there. I'm just kidding. I'm just kidding.

Well, I'll tell you something really cool. If you go to the South Pole, which is oversubscribed by a factor of 10 to 1, 10 times as many people want to spend their nine months of their year minimum at the South Pole than we have room for to actually do work at the South Pole. Which means 10 people total, right? No, there's 45 people there. I'm just kidding. I'm just kidding.

Well, I'll tell you something really cool. If you go to the South Pole, which is oversubscribed by a factor of 10 to 1, 10 times as many people want to spend their nine months of their year minimum at the South Pole than we have room for to actually do work at the South Pole. Which means 10 people total, right? No, there's 45 people there. I'm just kidding. I'm just kidding.

And they're all listening to you. So when you want to go there, when you do go there, they actually don't know where the sun is going to set. Remember, the sun only rises and sets once a year, right? So it's one day and one night per year, six months long. where the sun sets is unknown. And actually, the days preceding it, the sun is making a big circle around your head.