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  2. Resistance thermometer - Wikipedia

    en.wikipedia.org/wiki/Resistance_thermometer

    Many RTD elements consist of a length of fine wire wrapped around a heat-resistant ceramic or glass core but other constructions are also used. The RTD wire is a pure material, typically platinum (Pt), nickel (Ni), or copper (Cu). The material has an accurate resistance/temperature relationship which is used to provide an indication of temperature.

  3. Resonant-tunneling diode - Wikipedia

    en.wikipedia.org/wiki/Resonant-tunneling_diode

    Resonant tunneling of electrons through Si/SiGe heterojunctions was obtained later, with a limited peak-to-valley current ratio (PVCR) of 1.2 at room temperature. [14] Subsequent developments have realized Si/SiGe RTDs (electron tunneling) with a PVCR of 2.9 with a PCD of 4.3 kA/cm 2 [15] and a PVCR of 2.43 with a PCD of 282 kA/cm 2 at room ...

  4. Four-terminal sensing - Wikipedia

    en.wikipedia.org/wiki/Four-terminal_sensing

    Four-point measurement of resistance between voltage sense connections 2 and 3. Current is supplied via force connections 1 and 4. In electrical engineering, four-terminal sensing (4T sensing), 4-wire sensing, or 4-point probes method is an electrical impedance measuring technique that uses separate pairs of current-carrying and voltage-sensing electrodes to make more accurate measurements ...

  5. Wire wrap - Wikipedia

    en.wikipedia.org/wiki/Wire_wrap

    The hole in the center of the tool is placed over the post. The tool is rapidly twisted. The result is that 1.5 to 2 turns of insulated wire are wrapped around the post, and above that, 7 to 9 turns of bare wire are wrapped around the post. The post has room for three such connections, although usually only one or two are needed.

  6. Cheap and deadly: Why vehicle terror attacks like the Bourbon ...

    www.aol.com/cheap-deadly-why-vehicle-terror...

    Federal security experts have long warned about the risk from vehicle attacks and typically recommend a "layered" approach to preventing them during large gatherings like parades, concerts or ...

  7. RTD - Wikipedia

    en.wikipedia.org/wiki/RTD

    RTD may refer to: Science and technology. Real-time data; Residence time distribution; Resonant-tunneling diode; Round-trip delay time, in telecommunications;

  8. College Football Playoff: Notre Dame gets marquee Sugar Bowl ...

    www.aol.com/sports/college-football-playoff...

    Notre Dame has a postseason win over Georgia. And it can thank a one-minute stretch over the second and third quarters for the victory. The No. 7 Fighting Irish scored 17 points in 54 seconds ...

  9. The office “advances U.S. foreign policy on antisemitism” and has an annual budget of $1.75 million. In his first term Trump left the office vacant for two years, before finally naming ...