My bet is that a large part of the delay is due to deciding what's not there. A device that's present may respond right away, but how long do you wait before deciding that no answer means it's not there? If you don't wait long enough you miss a certain percentage of slow-responders and that's no good.
Until aircraft, nuclear submarines, nuclear icebreakers, and satellites were invented, nobody was able to say with certainty whether the Northwest Passage existed or not"
I assume you mean other than actually climbing in your boat and sailing it.
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My bet is that a large part of the delay is due to deciding what's not there. A device that's present may respond right away, but how long do you wait before deciding that no answer means it's not there? If you don't wait long enough you miss a certain percentage of slow-responders and that's no good.
Until aircraft, nuclear submarines, nuclear icebreakers, and satellites were invented, nobody was able to say with certainty whether the Northwest Passage existed or not"
I assume you mean other than actually climbing in your boat and sailing it.