1. Do you like travelling?
2. What’s the best place you’ve ever been to?
3. Where do you want to travel to before you die?
4. Can travel be an education?
5. Would you like to travel in space or to the moon?
6. Would you like to go travelling for a few years non-stop?
7. What different kinds of travelling are there?
8. What are the good and bad things about travelling?
The Chinese New Year is the world’s single biggest human migration of people: over 200 million travel to celebrate with family – many of them on the country’s advanced bullet train network.
You’re on an airplane when you feel a sudden jolt. Outside your window nothing seems to be happening, yet the plane continues to rattle you and your fellow passengers as it passes through turbulent air in the atmosphere. What exactly is turbulence, and why does it happen? Tomás Chor dives into one of the prevailing mysteries of physics: the complex phenomenon of turbulence.
Lesson by Tomás Chor, directed by Biljana Labovic.
Maps are flat representations of our spherical planet. Johnny Harris cut open a plastic globe to understand
His struggle to make a flat map out of the plastic globe is indicative of a challenge mapmakers have faced for centuries: It is mathematically impossible to translate the surface of a sphere onto a plane without some form of distortion.
To solve this problem, mathematicians and cartographers have developed a huge library of representations of the globe, each distorting a certain attribute and preserving others.
For instance, the Mercator projection preserves the shape of countries while distorting the size, especially near the north and south pole.
For a more accurate view of land area look at the Gall-Peters projection, which preserves area while distorting shape.
In the end, there’s not “right” map projection. Each comes with trade-offs, and cartographers make projection decisions based on the particular tasks at hand. But if you are interested in seeing an accurate depiction of the planet, it’s best to stick with a globe.