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  1. Vor einem Tag · There is also a lot of humor. In this video Marc delves into the circuitry of the Phase-Locked Loop. I didn't know that the PLL circuitry has its origins in the space program. NASA needed a circuit that would permit very narrow band reception of a signal that was undergoing the kind of Doppler shift that spacecraft produce. Viola! Enter the PLL.

  2. en.wikipedia.org › wiki › PhotonPhoton - Wikipedia

    Vor 2 Tagen · In the prevailing Standard Model of physics, the photon is one of four gauge bosons in the electroweak interaction; the other three are denoted W +, W − and Z 0 and are responsible for the weak interaction. Unlike the photon, these gauge bosons have mass, owing to a mechanism that breaks their SU (2) gauge symmetry.

    • Stable
    • 0, < 1×10−35 e
    • γ
    • 0 (theoretical value), < 1×10−18 eV/c² (experimental limit)
  3. Vor 3 Tagen · Key to its effectiveness is that the specific virus regions the vaccine targets also appear in many related coronaviruses. By training the immune system to attack these regions, it gives protection against other coronaviruses not represented in the vaccine – including ones that haven’t even been identified yet.

  4. Vor 4 Tagen · Christopher Gilbert and his buddy and co-worker, Cassidy Holland, were just joking around when she pushed him into the water, he said. Courtesy of Christopher Gilbert. “I took my keys, wallet ...

  5. Vor 3 Tagen · Knopf joined us, and Tony said, “Alfred, this is John McPhee.”. In that exact instant, seemingly cued by my name, Alfred Knopf’s eyes narrowed to a stare, and his arms stiffened at his sides ...

  6. Vor 3 Tagen · Nuclear Physicist buffs out radiation damage for your weapons, however, most enemies in the game are immune to radiation, such as ghouls, super mutants, and robots, so this perk is not worth picking up.

  7. Vor 2 Tagen · Broad Areas of Virtual Labs. Electronics & Communications. Computer Science & Engineering. Electrical Engineering. Mechanical Engineering. Chemical Engineering. Biotechnology and Biomedical Engineering. Civil Engineering. Physical Sciences.