Tag Archives: Planck constant
Using superconductors to measure electric current
Simply place two superconductors very close to each other, separated by a small gap, and you’ll have taken a big step towards an important piece of technology called a Josephson junction. When the two superconductors are close to each other … Continue reading
Posted in Scicomm
Tagged Bloch oscillation, Josephson junction, Josephson voltage standard, metrology triangle, National Institute of Standards and Technology, Ohm's law, Planck constant, quantum Hall effect, Shapiro steps, SQUID, superconducting quantum interference device, superconductors, thermal noise
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The strange beauty of Planck units
What does it mean to say that the speed of light is 1? We know the speed of light in the vacuum of space to be 299,792,458 m/s – or about 300,000 km/s. It’s a quantity of speed that’s very … Continue reading
Posted in Analysis, Scicomm
Tagged Boltzmann constant, Hagedorn temperature, Planck constant, Planck scale, Planck temperature, Planck units, quantum gravity, SI units, speed of light
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