An anonymous reader pipes up: "Here's some cool news about actually using the jet stream to generate power." Nutshell: aircraft-mounted windmills that lounge in the jet stream. I'm imagining a huge area populated by these aircraft, each held up with a 4.5km electrified tether, and staying on North America for a while.
In the sciences, we are now uniquely priviledged to sit side by side with
the giants on whose shoulders we stand.
-- Gerald Holton