Quotation

Rust

the Longest War
If you stacked up all of the aluminum beverage cans produced in a year, the stack would be 13.5 million miles long. That’s long enough to make a tower that reaches the moon and to have enough cans leftover to make fifty-five more such towers. Of course, since an empty can is only capable of supporting 250 pounds, and each can weighs about a half ounce, you couldn’t stack up more than 7,353 cans before their own weight would crush the bottommost can, toppling the whole thing. So, practically, you’re limited to building a tower 2,757 feet tall, which is 40 feet taller than Dubai’s Burj Khalifa, the world’s tallest skyscraper. With all those cans we pump out every year, you could make 20 million such towers, which means you’d have to build more than 50,000 of the highest man-made structures ever built every day just to keep up with production.