chris_va

12 ms·

121.
by chris_va 3y ago
(disclaimer I work on climate/methane mapping) Companies do survey from the ground, and for large facilities there is often permanent monitoring. Detecting methane from the ground still requires an expensive instrument, and it covers a
122.
by chris_va 3y ago
https://wapo.st/3V1cfiQ
123.
by chris_va 3y ago
Now I am curious For 20Hz noise, are there too many reflections to use an oscilloscope with 3 mics on a 25ft baseline to triangulate it (you'd have to elevate the mics)?
124.
by chris_va 3y ago
You probably want kWh_e (electric) instead of kWh_t (thermal), and probably should include the weight of the engine/transmission. Diesel is better still, but not quite the same gap.
125.
by chris_va 3y ago
It's also possible that the A&P looked at it and decided it could wait, but then after the passengers noticed someone higher up decided it was not worth the brand risk. If the fastener is called out in part 21.31, then it would be
126.
by chris_va 3y ago
I am not going to defend execs/board members, but that seems ill advised. If you had a death penalty for execs, most competent people would refuse the job, and you'd end up in a worse situation.
127.
by chris_va 3y ago
I'm just waiting for this: https://idlewords.com/2007/04/the_alameda_weehawken_burrito_...
128.
by chris_va 3y ago
I also fly a bit in the bay area ... ATC is supposed to accommodate to the best of their ability. Accommodating here could have been just waiting for a natural gap (which is what I think happened), but I think ATC should have just called Oa
129.
by chris_va 3y ago
You have to appreciate the jokes in the complaint: In short, the VectoIQ Board simply failed to look under the hood at Nikola—both figuratively and literally—completely abdicating their responsibilities to VectoIQ’s stockholders.
130.
by chris_va 3y ago
I have heard Freud described as someone who asked all the right questions and got all the wrong answers.
131.
by chris_va 3y ago
They brought me in here to do a job, they asked me to stir the damned tanks, and I stirred the tanks!
132.
by chris_va 3y ago
Mostly slave ships, in this era of Venice :/
133.
by chris_va 3y ago
Seems like it's only in-plane motion, so the wheel can't tilt/turn? I assume that means they still need a CV joint for the front wheels regardless, and that it gains no camber when cornering.
134.
by chris_va 3y ago
Since this is presumably for interplanetary, and not heavy lift, I'm not sure why you'd use this over just having thin-film solar + pulsed plasma thruster (which can do anything from 1km/s to 3000km/s exhaust velocity).
135.
by chris_va 3y ago
Very simplified (ocean-centric) homeostat: The surface of the ocean is in equilibrium with the atmosphere, so increasing atmospheric ppm increase the ppm of CO2 in the mix layer (think of it as a gas sponge). The ocean buffers that co2 (car
136.
by chris_va 3y ago
Agreed, the variation in the chart is pretty small. Though, if you near a large CO2 source (e.g. a city) it can be 100ppm+ higher (just staring at some CO2 meters right now).
137.
by chris_va 3y ago
The sensor they plot is in Hawaii, here's 2006 from NASA: https://climate.nasa.gov/climate_resources/142/video-super-h... (I assume it has to do with prevailing wind and weather in Hawaii more than AC)
138.
by chris_va 3y ago
Yes (usually drying, less so fermenting), which varies a lot country to country. Still, mostly it should end up in the shell that is removed.
139.
by chris_va 3y ago
Most tiny makers do single origin from distributors like Uncommon, but you'd have to ask. Most chocolate you see in a store, though, yes :(
140.
by chris_va 3y ago
Not to my knowledge :/
141.
by chris_va 3y ago
An example: https://static1.squarespace.com/static/5ab9229aa9e0287fbf927...
142.
by chris_va 3y ago
https://spinnakerchocolate.com/
143.
by chris_va 3y ago
(from experience) Most local chocolatiers (e.g. truffle makers, etc) use bulk chocolate already produced from companies like Valrhona, so it may have the same issues. Most local chocolate makers use distributors to source their cacao beans,
144.
by chris_va 3y ago
(disclaimer: I make bean-to-bar chocolate) As background, food often concentrates whatever is in the soil, and cacao perhaps more so. The shell around the cacao bean is a big filter, and tends to accumulate stuff. This concentration isn&#x2
145.
by chris_va 3y ago
There is this story: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2477708/ The conventional approach for radiation protection is based on the ICRP's linear, no threshold (LNT) model of radiation carcino
146.
by chris_va 3y ago
Saltwater
147.
by chris_va 3y ago
Liming is pretty common in agriculture already. If you need 10um particles it'll be a problem. If 100um is ok, then it's not a big deal (and transport dominates).
148.
by chris_va 3y ago
I imagine the temperature gradient across the car might be +/- 3degC, ignoring the actual sensor.
149.
by chris_va 3y ago
Not really weighing in one way or another, but I do not see scatter plots in the paper other than one PCA plot (which was not LDA... not sure why they chose PCA, so no strong reason to expect point separation there, though I do not know the
150.
by chris_va 3y ago
From the statistical analysis section of the paper ( https://www.pnas.org/doi/10.1073/pnas.2218679120 ), the title of this article seems like it overstates the evidence. I would take this more as infrasound intensit

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