We've worked with very expensive famous brand Ethernet switches where the device management and settings were, by design, only available through an old fashioned serial port (only connected when setting up). Once such a switch is safely located in a secure room, the "exposed surface" gets very...
An inch in the UK over the years.
1895 - 25.399978 mm
1922 - 25.399956 mm
1932 - 25.399950 mm
1947 - 25.399931 mm
1959 - 25.4 mm exactly
Ref. NIST The Gauge Block Handbook
Link might be something like:
https://www.nist.gov/document/mono180pdf
Easier to google the title.
Probably below the...
A lab centrifuge for separating fluids for testing in a lab?
Look at the famous $1 Malaria Test. The centrifuge part is $0.20.
https://news.stanford.edu/2017/01/10/whirligig-toy-bioengineers-develop-20-cent-hand-powered-blood-centrifuge/
More practically, try eBay.
The safety issue can be this (an example):
A given boat has locally connected the Neutral and Ground (at their boat). One likely cause is their on-board inverter, where they switch off only the Hot when on Shore Power, leaving Neutral and Ground tied.
This in itself perhaps doesn't cause any...
If the Neutral to Ground connection was only at the shore transformer (at the associated service panel), and if every boat maintained strict isolation of their Neutral (not tied to Ground at their boat), then that should eliminate AC ground return currents.
Does that align with boat Shore Power...
Fresh or salt water?
Which location? Local electrical Codes and practices vary.
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Related to boats sharing a common ground, consider also marine galvanic isolator devices.
I recommend remedial viewing of "hacker" presentations on these topics as found on, for example, the CCC.de conferences. One need only to watch a few of such ~40m presentations to begin to see the topic in an entirely different light.
It's like having someone that denies the existence of...
When the spec sheet for an instrument states "0.025% span accuracy", they're obviously referring to the span of their instrument. (Obviously the instrument supplier wouldn't know anything about your intentions.)
If this is written in some other context, such as a contract specification, then...
How about using an IR LED to transmit the data? I assume you're only going a meter or several meters. The signal acquisition board would be redesigned to A/D, buffer the data, build packets, and intermittently IR blast them out once or twice using a suitable format (with some error correction)...
My house has about 24m2of glass facing essentially south (for passive solar gain), shaded by the roof overhang in summer (when the Sun is higher in the sky); so it comes with a roof that is naturally facing essentially south.
The south facing roof has 24-inch deep parallel chord roof trusses...
There doesn't seem to be a lack of basic info all over the 'net concerning 'Twin Annular Premixing Swirler' technology (if that's what you're referring to).
It's presumably patented, probably decades ago and likely expired by now. Obviously such patents are on-line, if you have time to find them.
Coolant-free engines are common. Air cooled VW, small engines, etc. Using fuel to carry away heat might result in cooked fuel. Better to stick to air.
Lubricant-free (sort of) engines are common in the form of two-strokes.
If you can point to an air-cooled, two-stroke diesel engine, it might...
It would be extremely challenging, but you've not provided enough information to be more specific than that.
Presumably it's presently wired? How does the cable relate to the 4g weight?
What distance to span? Does it need a power source (battery), or can RFID technology provide power?
As a...
My previous car (2008 MB E350, recently handed down) has an intake manifold with adjustable runners. Long runners up to just under 4000 RPM, and then redirected to short runners above that RPM.
Very noticeable effect.
For some reason, my brain picks out suspicious numbers.
Circa 1989, I was looking over the shoulder of the Structural Engineer that was using a CAD terminal (vector graphics CRT) to design the rather large (36 foot clear span, 28 inch deep) parallel chord roof trusses for my house.
I asked...
If the panels are installed parallel to the roof surface, then some of those load cases would be, very roughly, essentially unchanged (with or without panels).
