4 ms·
that's exactly how it works, apparently: "the optical detector in the detector van uses a large lens to collect that light and focus it on to an especially sen
by woodrowbarlow 7y ago
that's exactly how it works, apparently:
"the optical detector in the detector van uses a large lens to collect that light and focus it on to an especially sensitive device, which converts fluctuating light signals into electrical signals, which can be electronically analysed"