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From: Ahem A Rivet's Shot <steveo@eircom.net>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: Need help with PI PICO...
Date: Tue, 26 Mar 2024 18:16:22 +0000
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On Tue, 26 Mar 2024 17:33:50 +0000
Jim H <invalid@invalid.invalid> wrote:

> Assuming the "oil" you're talking about is kerosene/heating fuel, the
> speed of sound is 1330 m/sec so 0.5cm takes 3.76 micro-sec. 

	I would have thought it's measuring the distance to the surface of
the oil from above the oil so it would be the speed of sound in air that
matters 300m/s.

-- 
Steve O'Hara-Smith
Odds and Ends at http://www.sohara.org/
For forms of government let fools contest
Whate're is best administered is best - Alexander Pope