Technology for Luddites
“The study found that predicted performance exceeded actual performance by a factor of 15 to 17. With the worst-performing systems, the electricity required to run the electronics exceeded the electricity production, so the wind turbines were net consumers of electricity”. Read.
Thanks, Brent Eubanks. Related: Small windmills put to the test / Urban Windmills harm the environment.
This unconventional sailing boat, named the SailRocket, reached a record speed of 47.35 knots (87.6 km/h or 54.43 mph), on average over a distance of 500 meters. During another run, the boat reached a speed of 52 knots before lifting off
for a spectacular in-the-air wipeout (also caught on video). More below.
Corn-grinding windmill, equipped with an auxiliary steam engine (Rotterdam, the Netherlands, circa 1900). Source: “Geschiedenis van de techniek in Nederland“.
Following kitesurfing, kite buggying, kite landboarding and snowkiting (no slope required); kiteboating:
Airplay Kitesailing, Kite For Sail, KiteCat, the pioneers.
Previously: kitesurfing for cargo vessels. Related: sailing at the touch of a button / Sailing Rockets.
No Tech Magazine hosts all mixed links and updates from Low-tech Magazine. All earlier mixed links and updates can be found here, here and here.
