yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Flight at the Edge of the Ozone Layer | One Strange Rock


2m read
·Nov 11, 2024

NARRATOR: 30 years ago, we discovered man-made chemicals had punched a hole in the ozone layer. Is that hole here to stay, waiting around to kill us? Today, we're trying hard to find out. Morgan Sandercock is about to test an experimental plane, perfect for sampling ozone.

MAN: (ON RADIO) Copy that. So I felt pressure rising.

MORGAN SANDERCOCK: (VOICEOVER) We think we can go as high as 90,000 feet.

MAN: (ON RADIO) Jim, you ready to go?

JIM PAYNE: (ON RADIO) We're ready.

MORGAN SANDERCOCK: (VOICEOVER) That's the big boy territory. That's where things can go wrong very, very quickly. If we lose cabin pressure, then, the pilots could very easily pass out. And we don't have any automatic systems to recover from that.

WOMAN: (ON RADIO) Getting ready to roll.

NARRATOR: Now, a glider might sound like a dangerous choice so high up. But gliders don't have engines, which means they can't pollute the team's samples.

MAN: (ON RADIO) Confirm [inaudible] off.

WOMAN: (ON RADIO) [inaudible] is off. Wing wheel is off.

MAN: (ON RADIO) Been running at 11:32.

MAN: (ON RADIO) 11:32. Written down in GPS 5.

MAN: (ON RADIO) Airborne. [music playing]

NARRATOR: The Perlan glider uses air rising over the Southern Andes to reach extraordinary heights.

MAN: (ON RADIO) Airspeed, 70 knots. Looking beautiful.

MAN: (ON RADIO) Yeah?

MAN: (ON RADIO) Really high.

MAN: (ON RADIO) Traffic.

MAN: (ON RADIO) Yeah.

NARRATOR: 52,000 feet up makes this the highest glider flight ever. But you've got to get this high to get a great picture of the ozone layer. The good news is that thanks to a global ban on ozone-harming chemicals, it looks like the hole is healing up. Our shield is regenerating.

More Articles

View All
Example reflecting quadrilateral over x axis
We’re asked to plot the image of quadrilateral ABCD. So that’s this blue quadrilateral here under a reflection across the x-axis. So that’s the x-axis, and we have our little tool here on Khan Academy where we can construct a quadrilateral, and we need to…
How I learned to make more friends
I’ve been very blessed to have had some absolutely amazing friendships in my life. While many of them have come and gone—some of them got married, some of them moved towns, one of them became a priest, actually—but all the amazing friends in my life have …
“Goodbye REST? How Model Context Protocol (MCP) Is Revolutionizing Banking APIs with Gen AI”
Speaker: Welcome. Today we’re asking a provocative question. Is the model context protocol or MCP poised to replace traditional APIs? We’ll explore how this emerging pattern can reshape the way banking apps and many other systems talk to data. Speaker: W…
Analyzing related rates problems: equations (Pythagoras) | AP Calculus AB | Khan Academy
Two cars are driving towards an intersection from perpendicular directions. The first car’s velocity is 50 kilometers per hour, and the second car’s velocity is 90 kilometers per hour. At a certain instant ( t0 ), the first car is a distance ( X{t0} ) of …
Approximating limit from numeric table
This video we’re going to try to get a sense of what the limit as ( x ) approaches 3 of ( \frac{x^3 - 3x^2}{5x - 15} ) is. When I say get a sense, we’re going to do that by seeing what values for this expression we get as ( x ) gets closer and closer to t…
Did Apple Just Have Its Moat Blocked? (Epic Games Lawsuit)
So here on the channel, I love talking long-term Warren Buffett-style value investing, and that strategy largely boils down to four key points. There’s understanding the business, so you know what you’re getting yourself into. Then you find a competitive …