New variable-pressure touchscreens harness quantum-mechanical phenomenon

from PopSci:

Tapping a principle of quantum mechanics and a medieval-looking nanoparticle, a UK firm has created a composite material that may soon deliver efficient, pressure-sensitive touchscreens to numerous devices.

[…] The composite works on an idea in quantum mechanics that if you shoot a tiny particle at a solid wall, there is a slim probability that it will pass straight through, based on an effect known as quantum tunneling.

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