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2. Waveguide (radio frequency) - Wikipedia

   en.wikipedia.org/wiki/Waveguide_(radio_frequency)

   In radio-frequency engineering and communications engineering, a waveguide is a hollow metal pipe used to carry radio waves. [1] This type of waveguide is used as a transmission line mostly at microwave frequencies, for such purposes as connecting microwave transmitters and receivers to their antennas, in equipment such as microwave ovens, radar sets, satellite communications, and microwave ...

3. Magnetic gear - Wikipedia

   en.wikipedia.org/wiki/Magnetic_Gear

   The magnetic gear is a magnetic coupling device that renders a mechanical ratio between two magnetically-coupled devices such that: They have a ratio of rotational or translational movement between input and output, which may be 1 in the case of a pure magnetic coupling or one of many gear ratios in a magnetic gearbox .

4. Electromagnetic shielding - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_shielding

   The best shape for magnetic shields is thus a closed container surrounding the shielded volume. The effectiveness of this type of shielding depends on the material's permeability, which generally drops off at both very low magnetic field strengths and high field strengths where the material becomes saturated. Therefore, to achieve low residual ...

5. Permeability (electromagnetism) - Wikipedia

   en.wikipedia.org/wiki/Permeability...

   Paramagnetic materials are attracted to magnetic fields, hence have a relative magnetic permeability greater than one (or, equivalently, a positive magnetic susceptibility). The magnetic moment induced by the applied field is linear in the field strength, and it is rather weak. It typically requires a sensitive analytical balance to detect the ...

6. Reed switch - Wikipedia

   en.wikipedia.org/wiki/Reed_switch

   3 - resilient magnetic member 4 - non-magnetic member 5 - conducting member 6 - magnetic member 7 - insulating piece. The most common type of reed switch contains a pair of magnetizable, flexible, metal reeds whose end portions are separated by a small gap when the switch is open. The reeds are hermetically sealed within a tubular glass envelope.

7. AOL Mail

   mail.aol.com/?icid=aol.com-nav

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Magnetic particle inspection - Wikipedia

   en.wikipedia.org/wiki/Magnetic_particle_inspection

   Magnetic yoke is a hand-held device that induces a magnetic field between two poles. Common applications are for outdoor use, remote locations, and weld inspection . The drawback of magnetic yokes is that they only induce a magnetic field between the poles, so large-scale inspections using the device can be time-consuming.

9. Controversial holding, pass interference calls in Bills ...

   www.aol.com/sports/controversial-holding-pass...

   Alas, the Bills were penalized 10 yards and faced second-and-21 at their own 43-yard line instead of third-and-3 at the Baltimore 39. They punted two downs later after failing to secure a first down.