The magnetic moment is a vector— it has a magnitude and a direction. It's related to both the magnetic field strength and the torque that the field exerts. A whole magnet's magnetic moments come from the moments of all of its atoms. In metals like iron, the orbital magnetic moment ...
Books on the subject tend to be expensive, but two well-known texts include "Aircraft Gas Turbine Engine Technology" and ""Elements of Gas Turbine Propulsion." There is a surprising amount of activity in the home-built gas-turbine arena, and you can find other people interested in the same...
We're going to find out how crumple zones redistribute the forces involved in a crash, what crumple zones are made out of and learn about a few other advanced safety systems that are being tested right now. We'll also find out how crumple zones have been incorporated intorace cars, and ...
In this article, we'll find out which plane has the distinction of "biggest plane in the world" and how experts determine that honor. It's not easy to find universal criteria for ranking aircraft, but there is one way in which many experts can agree: maximum takeoff weight. And there i...
Things naturally want to keep going. If a car is speeding along at 50 miles per hour, inertia wants to keep it going 50 mph in one direction. Air resistance and friction with the road are constantly slowing it down, but the engine's power compensates for this energy loss. Anything that...
This neat unit comes with a high powered motor that can offer grinding action of up to 2,600 RPM. The resulting torque is sufficient enough to grind down all types of sink wastes in a very short span of time. The unit is also very easy to install and fits well into small areas. An...
Typical screws loosen by turning to the left. The less common left-handed drill bit has flutes that twist in a counterclockwise direction. The torque applied by a left-handed drill bit can be more effective than a right-handed bit at loosening a stripped screw. For it to work, however, ...
Imagine this: You need to unscrew a bolt from a wooden plank. You find the correctly sized wrench and secure it to the bolt. In order to begin to loosen the wrench, you need to hold the handle and pull or push in a direction that is perpendicular to the handle of the wrench. Pushin...
To find out more about the parts on a remote-control circuit board, check out Inside a TV Remote Control. On the component side, the infrared receiver sits on the front of the device where it can easily see the signal coming from the remote control. You've probably noticed that some rem...
If you can’t fix it, you remove a few links from your chain and turn your bike into a single-speeder until you get to the next city, where you check into the local hostel to find another cycle tourist awaiting the return of their Rohloff hub or Pinion gearbox from Germany. You find...