tossandturn

Yes

"MSH-P/HC/NC/5/V/P/0 - 3% Volume Ethylene = 0.4V - 2.4V"

We built that into a custom SS body with a Delrin mounting insert, and ran the serial connections to a custom board that interfaced with up to 8x sensor locations (in conjunction with some other sensor elements). The elements were ~US$200/ea ~4.5 years ago.

These are fancy interpolated IR absorption sensors internally, so any gases of similar concentrations could throw off the readings; depends on the environment. Would be BEST to calibrate to local atmosphere conditions of the installation, but that's not really something you can sell. :P

I have developed custom Ethylene sensors in the past for customers, and Dynament (UK) is a manufacturer that I can definitely recommend if anyone wants to do this and go down the DIY electronics route without having to dig through a bunch of Chinese products to find the "right one". https://www.dynament.com/products/gas-sensors/standard-non-e...

On the other end of the spectrum (not testing specifications, but just simply "does it network?"), I have successfully ran a 100BASE-TX connection between industrial equipment using individual (not twisted) 24-AWG wires over 20ft.

Increased efficiency AND higher power density.

https://www.mouser.com/applications/advancing-power-GaN/ https://www.youtube.com/watch?v=sLuiGN3lNaA

I use path tracing for scientific/engineering studies of light propagation; in particular, I attempt to simulate monochromatic light sources and reflective/transmissive/absorptive material configurations (ranging from specular to diffusive, and everything in between) to determine the irradiance delivered to specific geometries. In the past I have used commercial packages like ASAP (APEX Solidworks add-in), Zemax, and FRED (in order of preference).

see Hawaiian "Puka Dog"s.

Prions are like gamma-induced bit flips, Viroids are like small code patches, and Viruses are self-deploying code patches.

Displays with relatively simple off-board processing are common, too; you can often run a big display pretty reasonably with a 16MHz Arduino: buydisplay.com

I started reading it, and I thought "this style seems very familiar". When I got to the first schematic, it clicked and I checked the header for the author's name; sure enough, Forrest Mims!

That precedent was already established with Credit companies.

they can't help themselves once they get a whiff of some new power

Semantics, but I don't think it is necessarily the "power", so much as it is a new vector to get the evidence they feel that they need to perform their job with less effort. It is a lazy method that circumvents the laws that stand in their way for good reasons.

Whatever happened to good-old two-part JB Weld? Is that just a regional product? I thought everyone knew about it.

Yeah, I was on 4chan as a 16yo-20yo regular lurker starting back in 2004; never an active poster, just commenting randomly and joining in conversations on various boards. It was a decent anonymous community, sometimes I'd wander over to /b/ and it would be like walking past an apartment building at night and seeing completely random (sometimes disturbing) things going on through all of the windows; lurking on /b/ was the online equivalent of being an active peeping tom in a neighborhood without curtains.

When moot sold the domain a few years ago to a former 2chan admin, I noticed it barely changed. But I haven't really visited much since 2009 or so...

...or during production (relatively speaking).

And given that it was in an old dusty bottle packed away deep, it may have concentrated over time due to evaporation.

I honestly wonder why. I developed a portable small-quantity project a few years ago and designed in a 20AH LiFePO4 battery pack; it seemed like the only sane choice. The cost was slightly higher and density was slightly lower, but the difference was less than 10%. Not having to be concerned with battery failure modes was a huge advantage. But those factors must be different at larger scales; the largest scale I can think of where density matters would be for a commercial electric 18-wheeler tractor; what chemistry do those use?

That analogy does not hold up when the CD you are observing from is in the same plane as all the others.

Obligatory reference to ice-nine: https://en.wikipedia.org/wiki/Ice-nine

We're almost there! EDIT: Oh wait, it does exist: https://en.wikipedia.org/wiki/Ice_IX

Ballistic missiles move very fast. Repost: http://www-users.math.umn.edu/~arnold/disasters/patriot.html

You are aware of the current U.S. President and the current EPA Administrator, right?

Worst place to ask this, I know, but... If I wanted to upgrade my old machine that currently has an HD 4770 (PCI Express 2.0 x16), where exactly could I find a worthwhile upgrade for less than $20?

I used the Melexis MLX90260/MLX90261 back in December 2014 for some sensors research at work, and they were not very helpful and the documentation was appallingly ambiguous for important parts of the programming; plus, it offloads all the mathematics (not insignificant amounts of floating point and statistics) to your processor (not a good deal for embedded work). The output, once processed, though, was very accurate and provided for additional processing to make more use of the information than similar offerings.

The Panasonic Grid-Eye offering was much easier to use, and did not require additional processing power just to make use of the information.

Isn't this why FTP had separate Binary and Text transfer modes?

Depends on how you do it, but some people just don't give up on someone "walking away". For example, Bill Ewasko - http://www.otherhand.org/home-page/search-and-rescue/searchi...

It's all yours, my friend.

Responding with "false" as the result seems logically incoherent, as it assumes that the first two lines of the the three-line program are "true" when there is no reason to assume that is the case.

Without any previous understanding of what computer programming is, what it does, or how it works, and relying solely on elementary mathematical learnings, is there a particular reason that one would assume that the first two lines are directives and the third line is what we are being asked to validate? I am too far down the rabbit hole to intuitively know if that is the case, can someone else suggest whether this is a plausible conjecture?