mturmon

21 ms·

181.
by mturmon 3y ago
Didn't downvote, don't entirely disagree, but maybe it would be OK to say that the leaks can be made more apparent: "The integral reverses the derivative" † ‡ * † Up to an arbitrary additive constant ‡ Provided the deri
182.
by mturmon 3y ago
The OP touches on the question of "why the focus on plumes and not on tundra or wetlands", and has a quote from Andrew Thorpe hinting at an answer. >> “These types of emissions are really, really important and very poorly un
183.
by mturmon 3y ago
Who wouldn’t love them both. But I’m partial to Miles from the Bitches Brew era as well. I really got hooked on the reissue of the “bootleg“ 1969 European concerts a few years back. It gave a whole new perspective on his style in those year
184.
by mturmon 3y ago
> ...he's quoting what someone described as a "fundamental tenet of numerical linear algebra" as "anything Jordan decomposition can do, Schur can do better"... I suspect a reason to keep this little slogan in min
185.
by mturmon 3y ago
Put in conduit and you can decide later, replace eventually, or change your mind.
186.
by mturmon 3y ago
Related to your parenting magazine comparison: the evergreen hoax, https://en.wikipedia.org/wiki/Grunge_speak#Grunge_speak_word... My bona fide Gen Z son does not allow me to use any of the words in OP, especially not
187.
by mturmon 3y ago
Yes. Besides “N”, another indicator you alluded to is the degree to which the aggrieved person is willing to take any responsibility for the outcome. Sometimes gifted people can negotiate problems with a nervous college dean or engineering
188.
by mturmon 3y ago
This essay is so weird to read. The author is extremely passionate, yet also claiming to be simply rational. He’s throwing terminology around (Dutch book, ZF) but seems unaware of the limits of the approach he advocates. There are so many c
189.
by mturmon 3y ago
You have given a nice clean answer that does not make any errors (such as talking about the likelihood as a density in parameters, which of course it is not). Thanks for writing it down. The only other thing worth adding to what you have wr
190.
by mturmon 3y ago
You don't really need a memory hole to make people forget about these leak events. The Aliso Canyon leak in LA in 2015 ( https://en.wikipedia.org/wiki/Aliso_Canyon_gas_leak ) was comparable size (~100,000 tonnes CH4
191.
by mturmon 3y ago
Yes, NASA (JPL) did some of the original work on remote-sensing measurements of methane emitters. The bulk of the methane emission events displayed on the (excellent) portal you linked come from EMIT, an imaging spectrometer on ISS. EMIT wa
192.
by mturmon 3y ago
Alas, I believe you two are not communicating! Marcia McNutt, the (now former) editor-in-chief of Science , was certainly talking about the News section of Science magazine, the magazine of the AAAS. That is, McNutt is talking about: ht
193.
by mturmon 3y ago
offal, I guess
194.
by mturmon 3y ago
The design problem is more complex than you are portraying. I don’t need my house to last for 200 years if it comes at the cost of not being able to modify it (walls, windows, openings, floor plan) as infrastructure needs change. Do you not
195.
by mturmon 3y ago
Not least, for the delightful characterization of that versatile word, "dynamic"!
196.
by mturmon 3y ago
Agree. Another use case for printf debugging is occasional or transient issues where there is a bug, but it only presents in an aggregate of many runs (or a lot of runtime). I debug scientific simulations in this way with printf's, bec
197.
by mturmon 3y ago
If you don’t know, you are in for a treat. Here is Bellman’s own description of how he came up with the term “dynamic programming “ — I spent the Fall quarter (of 1950) at RAND. My first task was to find a name for multistage decision proc
198.
by mturmon 3y ago
No. It's probably better to think of the multi-mission MSR "campaign" as being reformulated to be lower cost and complexity.
199.
by mturmon 3y ago
Yes. As you may know, recent safety regulations prompted by rollover incidents have meant that the "A" and "C" pillars connecting the body to the roof have been made wider. [See the first 2 paragraphs of the "Design
200.
by mturmon 3y ago
As I tried to clarify above, the helicopter was a tech demo ($90M) and not subject to the same risk rules as “very expensive projects like mars landers” (Perseverance: $2.4B). Your first sentence is trying to equate them. Heli was on board
201.
by mturmon 3y ago
One key differentiator is if the mission is competed or directed. Directed (in essence) means that the National Academies (NAS) decadal survey recommended that specific mission. (They specify the what but not too much about the how.) A dire
202.
by mturmon 3y ago
You are proposing an interesting thought experiment or hypothetical (“to what extent was the design team expecting a 10x longer lifetime?”). That’s worth pondering. Furthermore, you are answering it with a “they must have known!” I just d
203.
by mturmon 3y ago
That’s why we invented national labs, to keep those potential bad actors occupied with better goals.
204.
by mturmon 3y ago
Yes. And beyond this intuition (escape from local optima), the reason that annealing matters is that you can show that (under conditions) with the right annealing schedule (it's rather slow, T ~ 1/log(Nepoch) iirc?) you will conve
205.
by mturmon 3y ago
Agree. (I actually feel the same way about aliasing rm to “rm -i“). I depend on the out of box behavior of rm. I’ll run “rm *” in a directory that has subdirectories I want to preserve, but where I want to erase the files.
206.
by mturmon 3y ago
Flagrant? It doesn't seem that way: https://www.thecrimson.com/article/2023/12/12/allegations-pl... It seems more like Rufo, the NY Post, etc., are trying to stir the pot (which happens to have only
207.
by mturmon 3y ago
Such fun. I'm not a big solver of puzzles, but I enjoy the clues. I still remember the sample clue given in the brief 1-paragraph enticement, a short how-to guide for cryptics, written below the weekly cryptic on the back page of The
208.
by mturmon 3y ago
It may be worth adding that the planetary ephemeris are computed by NASA (JPL) by integrating the equations of motion forward in time numerically. Then the results (e.g. planet centroid as a function of time) are encoded in a file, as noted
209.
by mturmon 3y ago
This claim could use a fact check. I’ve seen old illustrations of the first Model T driving through a town, and the noise was shown as frightening to horses pulling carriages. This would imply there was a feeling on the part of the “horse c
210.
by mturmon 3y ago
Agree, and furthermore, the tech to detect these large point leaks is very available to those who care. Unlike diffuse sources, these concentrated leaks show up readily to ground, airborne or remote sensing instruments.

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