The ability to record signals from neurons is centered around the electrical current flow through the neuron.
The basis of single-unit recordings relies on the ability to record electrical signals from neurons.
Ochoa et al. recorded intraneural signals in subjects with post-ischaemic paraesthesiae.
They had taken the string galvanometer and adapted it to record signals from microphones onto photographic film.
A complete instrument package that records seismic signals is called a seismograph.
Also in 1989, a Russian satellite and a French satellite appeared to record similar signals from other quakes.
The previous technology generally used an instrumentation device that recorded signals onto a tape.
By the end of the 19 century, pen registers were widely used to record pulsed electrical signals in many contexts.
Gordon went back and estimated the times when he or Cooper had recorded signals.
Instead of recording magnetic signals on tape, these camcorders burn video information directly onto small discs.