Abstract: Several essential services, such as cellular phones, the Internet, television, navigation, weather prediction, and remote sensing, rely on satellites in low-Earth orbits, the technology for ...

Learn why Linux often doesn't need extra optimization tools and how simple, built-in utilities can keep your system running smoothly.

An old book about an even older operating system.

Garage door openers: Don’t leave home without one. Unless, of course, you don’t have a garage. These remotes can be used again and again and reprogrammed as often as you need. You can also buy ...

What's great for programming pros is good enough for beginners.

PROBLEM mechanical MESH box.msh T(x,y,z) = sqrt(x^2 + y^2) + z # non-trivial temperature distribution E = 200e3 * (1-T(x,y,z)/300) # temperature-dependent Young modulus nu = 0.3 BC left fixed # left ...