How does light 'know' the shortest path?
1:16
YouTubeVeritasium
How does light 'know' the shortest path?
Light is the fastest thing in the universe. In order to be this fast it always needs to take the shortest path (as it's speed cannot change). So how does it always know what the shortest path is?
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American can’t believe simple technology in China In China, you’ll start to notice so many differences between this country and the rest of the world. Not only from how the people act but the types of stores the types of marketing basically everything it’s like going to a different world. That’s how I felt when I went to Japan for the first time however, China is a whole Nother level. And this time in China, I kept noticing that people were wearing these earrings that turned out to be headphones
2:02
American can’t believe simple technology in China In China, you’ll start to notice so many differences between this country and the rest of the world. Not only from how the people act but the types of stores the types of marketing basically everything it’s like going to a different world. That’s how I felt when I went to Japan for the first time however, China is a whole Nother level. And this time in China, I kept noticing that people were wearing these earrings that turned out to be headphones
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