Nanoscale engineering can now take advantage of a new ratchet device: it acts as a diode for superconducting vortices, but its directionality can be controlled and repeatedly reversed to become an ...

At Hackaday, we’re constantly impressed by the skill and technique that goes into soldering up some homebrew creations. We’re not just talking about hand-soldering 80-pin QFNs without a stencil, ...

[Tim] noticed recently that a large number of projects recreating discrete logic tend to do so with technology around 70 years old like resistor-transistor logic (RTL) or diode-transistor logic (DTL).

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