The Sun25d
Hypersonic ‘jumbo jet ROCKET’ hits 5,000mph in major step toward goal of flying passengers anywhere on Earth in 60mins
A ROCKET jet has hit a dizzying new speed of over 5,000mph - with hopes the project will one day be able to take passengers anywhere in the world in just 60 minutes. Scientists behind the Chinese ...
The New York Times4y
The Best Pepper Mill
That said, we’re not huge fans of electric pepper mills. They’re loud, they’re slow, and they’re top-heavy. And the internal parts are often made with cheap plastic that can break easily ...
Hackaday10y
Peculiar Radial Mill From Car Parts
Whether 3D printer, lasercutter, or mill, most CNC machines use human-friendly ... His design uses only about a dozen parts. Because automotive flywheels are made from cast iron the machine ...