4 ms·

Could you please elaborate?

thombat 4y ago
Whatever the form of a demonstration, if potential fraud is a concern then you want somebody with expertise in fraud in that domain. So for a demonstration that is statistical, a hotshot statistician is needed. For a physical demonstration you want a hotshot manipulator of the physical world, such as a practical magician. Somebody who already knows a long list of techniques and trade secrets for appearing to defy known.
- gus_massa 4y ago
  Moreover, the demonstration is very indirect, like watching a curve in an oscilloscope, not a flying orb that can be seen directly. We worked with a high temperature (i.e. liquid nitrogen [1]) ambient pressure superconductor. The experiment was quite unimpressive. You put the small block inside liquid nitrogen, with enough wires [2] and a thermocouple to measure the temperature, and connect it to an oscilloscope. You watch how the temperature decrees in the thermocouple and hope the drawing in the oscilloscope does something weird. There is a lot of room to connect the wires to another device [3], or just show fake data in the oscilloscope. [4] [1] "high temperature" means more than −195.8 °C = −320 °F = 77 K, that is quite cold for most people [2] https://en.wikipedia.org/wiki/Four-terminal_sensing https://en.wikipedia.org/wiki/Four-terminal_sensing [3] For example, in the OP, they can have a fake ambient temperature superconductor, and connect that cables to a real liquid nitrogen temperature superconductor that is in another room and is put inside and outside the nitrogen by a hidden person. [4] We had some problems with our superconductor, and we wanted to repeat some measurements. It was sensitive to humidity, and it worked quite well until another student wanted have another stable temperature to compare, and put it in water with ice :( .
boxed 4y ago
https://en.wikipedia.org/wiki/Benveniste_affair https://en.wikipedia.org/wiki/Benveniste_affair

Whatever the form of a demonstration, if potential fraud is a concern then you want somebody with expertise in fraud in that domain. So for a demonstration that is statistical, a hotshot statistician is needed. For a physical demonstration you want a hotshot manipulator of the physical world, such as a practical magician. Somebody who already knows a long list of techniques and trade secrets for appearing to defy known.

gus_massa 4y ago
Moreover, the demonstration is very indirect, like watching a curve in an oscilloscope, not a flying orb that can be seen directly. We worked with a high temperature (i.e. liquid nitrogen [1]) ambient pressure superconductor. The experiment was quite unimpressive. You put the small block inside liquid nitrogen, with enough wires [2] and a thermocouple to measure the temperature, and connect it to an oscilloscope. You watch how the temperature decrees in the thermocouple and hope the drawing in the oscilloscope does something weird. There is a lot of room to connect the wires to another device [3], or just show fake data in the oscilloscope. [4] [1] "high temperature" means more than −195.8 °C = −320 °F = 77 K, that is quite cold for most people [2] https://en.wikipedia.org/wiki/Four-terminal_sensing https://en.wikipedia.org/wiki/Four-terminal_sensing [3] For example, in the OP, they can have a fake ambient temperature superconductor, and connect that cables to a real liquid nitrogen temperature superconductor that is in another room and is put inside and outside the nitrogen by a hidden person. [4] We had some problems with our superconductor, and we wanted to repeat some measurements. It was sensitive to humidity, and it worked quite well until another student wanted have another stable temperature to compare, and put it in water with ice :( .

boxed 4y ago

https://en.wikipedia.org/wiki/Benveniste_affair https://en.wikipedia.org/wiki/Benveniste_affair