AT&T-MIT Conference, 1976. Arthur C Clarke gives an interesting view of the future.
When a team pours molten lava onto ice, the results are surprising.
Sweden is able to recycle 99% of their trash, some of which they burn. Why isn't this practiced in the United States?
The clip shows the layers of traffic associated with each of London’s 5 major airports. Each data layer builds over a 24 hour days, culminating with all layers combined together, along with flights passing over London, to make a web of incredible density.
There aren't many paternoster lifts left in the world: they're inaccessible, tough to maintain and a bit more dangerous than a regular lift. But some of them still exist: so if you're ever nearby, do stop by the University of Sheffield's Arts Tower and have a ride up and down. Just don't go over the top.