From zero to a billion electron volts in 3.3 centimeters
By comparison, SLAC, the Stanford Linear Accelerator Center, boosts electrons to 50 GeV over a distance of two miles (3.2 kilometers) with radiofrequency cavities whose accelerating electric fields are limited to about 20 million volts per meter.
Wireless Power Transfer Breakthrough: 5-Meter Distance Achieved in Republic of Korea
The notorious ugly spider’s web made of electrical cords connected to various devices in offices and homes may be a thing of the past following a demonstration of wireless power transfer for a 5-meter distance ... size of 3 m in length, 10 cm in width ...
How and Why 3 Blind Photographers Create Their Art
I’ve examined the stories and work of three blind shutterbugs to find the motivation behind ... victims of Hodgkin’s Disease and Ovarian Cancer. Unlike many other impaired photographers, she did not become a photographer until after her blindness ...
How many moons does Earth have?
How many moons do you see ... perhaps a meter or so wide, orbiting between 5 and 10 times the distance between Earth and the Moon. And there could be a thousand smaller ones as well, up to 10 centimeters wide. So if these moons are indeed out there ...
How Many People Would Work in the Death Star?
Basically, I calculate how many ATV ... per cubic meter. Also, this has a negative y-intercept of -16 people. I like the negative intercept. It says that if you want a ship for one person, it would need at least a volume of over 2000 m 3.