New research published in Physical Review Letters suggests that superconducting magnets used in dark matter detection ...

Fentanyl has killed hundreds of thousands of people globally since 2015. Detection of the drugs during interdiction is ...

The parking garage where I work has an magnetic loop detector for vehicle detection. My mid-sized ‘sport touring’ motorcycle is not small as MCs go, but frequently it is not detected.

Passing a magnet through a conducting loop would register a signal: ... First Results from a Superconductive Detector for Moving Magnetic Monopoles, Physical Review Letters, 48 (20) 1378–1381.

Loop detectors work by skin effect, ... The idea of using an active device to create a magnetic field that mimics what a large metal object does to a loop sensor’s magnetic field sounds OK to me.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Tiny deviations: the new metal detector looks for minute disturbances in Earth’s magnetic field. (Courtesy: iStock/muffinmaker) A compact, low-cost and low-power metal detector that can identify the ...

In a DC SQUID, the external magnetic field induces a current in the superconducting loop, which is added to or subtracted from the bias current flowing through the Josephson junctions. This results in ...

Typically, a magnetic loop detector and underground burial loop are installed to ensure that the door or gate closes immediately after the vehicle has passed. Sensing the metal of a passing vehicle, ...

Metal detectors can count money through magnetic ink. It’s possible to count how many US banknotes a person is carrying by using a metal detector to scan their magnetic inks.

The Alpha Magnetic Spectrometer has served during the last six years as a silent witness to the formation of the universe, quietly collecting about 100 billion cosmic rays, particles, and nuclei ...