jofer

23 ms·

241.
by jofer 6y ago
Have a look at solubility trapping: https://www.co2captureproject.org/co2_trapping.html The others apply as well.
242.
by jofer 6y ago
From a purely thermodynamic standpoint, you actually _can_ be net-energy-positive. You're gaining a lot of energy going from CH4/etc + O2 to H2O + CO2. You're then directly sequestering CO2 (usually in solution in a deep brin
243.
by jofer 6y ago
There are multiple mechanisms. One of the most common is membrane separation, where C02 is selectively allowed to pass through in a relatively high-pressure, C02-rich source such as a literal smokestack. Others are vaguely analogous to th
244.
by jofer 6y ago
You're badly misunderstanding the process. With current CCS you're taking high concentration stream of CO2 from combustion and injecting it into deep subsurface waters that you know will remain isolated. (I'm a geologist - we
245.
by jofer 6y ago
As someone with a PhD in a different field who's made that switch, I actually have to disagree with most of the advice here. This is a bit too bitter and jaded (I'm not quite this pessimistic), but I think it needs to be said to c
246.
by jofer 6y ago
In my experience, most of burnout is being held responsible for things you don't have control over. That may not be true for everyone, but it's been consistently true for me. As a result, the "work more efficiently" com
247.
by jofer 6y ago
Exactly! Also, this broad approach of learning noise vs signal during interpolation is well known in the geostats world. There, you typically accomplish it by allowing a non zero "nugget" when you fit the variogram. However, folk
248.
by jofer 6y ago
This is a great description of scientific computing in a nutshell. It's rarely getting an algorithmic speedup. It's far more often stepping back and solving a simplified or reformulated problem. It's often more complex in pra
249.
by jofer 6y ago
Yes, but that's harder to implement. Spherical kmeans is much simpler. A simple cos distance between vectors.
250.
by jofer 6y ago
This doesn't stress the datum point quite enough. If you have an arbitrarily precise lat long, you still don't know where you are very well. If you don't know the datum of a lat long, you only know the location to within abou
251.
by jofer 6y ago
Spherical kmeans is your friend there. It's overkill in a lot of cases, but perfect for that one.
252.
by jofer 6y ago
By "eviction" here, I mean permanently not being able to return to your home, regardless of the exact mechanism. Historically, the evictions are eminent domain. There's no returning. The local government simply forces you off
253.
by jofer 6y ago
Yeah, but the original was _very_ much targeted at a specific region. First off, the idea that this entire area is all in a floodplain or is repeatedly being rebuilt is just plain false. It ain't. End of story. The bigotry comment is d
254.
by jofer 6y ago
And you assume we're all the same? All the cities in Texas are solidly democratic, fwiw. State politics are controlled by rural counties, similar to the US as a whole.
255.
by jofer 6y ago
By the logic you'd have to use to claim all of this area is "in a flood plain and uninhabitable", you'd have to apply the same to virtually every other city in the US. The flood plains mostly aren't inhabited here.
256.
by jofer 6y ago
Given the comments I've repeatedly received due to my accent, I'd disagree. I'm a bit sick of being called an "ignorant hick" or a "fucking stupid redneck" just because everyone can tell where I grew up if
257.
by jofer 6y ago
Seriously?? Are you that ignorant and bigoted? Have you ever lived here? It's clear you have _zero_ knowledge of the area. What about SF or Seattle? The bay area is non-stop superfund sites, and unlike the gulf coast, there's _
258.
by jofer 6y ago
That would be counter-productive. The risk from hurricanes in this area (i.e. relatively inland western gulf coast) isn't wind. It's water. Build on stilts, not concrete. There's a reason we build the way we do here. We&#x
259.
New partnership brings high-resolution satellite imagery of the tropics to all(news.mongabay.com)
1 points by jofer 6y ago|0 comments
260.
by jofer 6y ago
And to be fair, that was the context of the comment. It was meant to be harsh but true advice. It was quite arguably, at the time, worthless in the context of advancing my career. It turned into my career, eventually, but that wasn't t
261.
by jofer 6y ago
It's very true that it's not scientific research. (And I actually generally agree with the premise behind "methods shouldn't be publishable -- they're for appendixes, not papers".) However, there's increas
262.
by jofer 6y ago
Don't underestimate the impact this has on getting funding or even just tenure/etc recognition for working on numpy. I'm in industry these days, but coming from the academic side, it's _really_ hard to get recognized fo
263.
by jofer 6y ago
This is the normal approach in a lot of other fields. I'm still floored it's not more common in tech. I've done a lot of both traditional interviews (presentation on research or previous work followed by 1:1) and "tech&q
264.
The Commercial Satellite Imagery Business Model Is Broken(medium.com)
5 points by jofer 6y ago|9 comments
265.
by jofer 6y ago
Don't forget that there are zircon grains around today that are nearly as old as the Earth. There are zircon grains dated at over 4.4 billion years old. They've survived _a lot_. These are zircon grains that have survived everyt
266.
by jofer 6y ago
I'm a bit fan of usually wrapping at 80, but not requiring it in a linter. Do what makes the most sense for readability, but often lines significantly over 80 characters are more readable as two lines. I typically work with multiple ho
267.
by jofer 6y ago
Yes, any well must be able to be shut in. I phrased that poorly. What I meant was that not all wells respond to a shut in in the same way. It's not uncommon for things to take months to recover to the same production levels after a s
268.
by jofer 6y ago
What does that have do the ability to shut in a well? A shut in isn't stopping something that's leaking or stopping a blowout. It's the ability to deliberately and temporarily stop production. A loss of containment is very
269.
by jofer 6y ago
Actually, deep water wells are usually quite easy to shut in by design. They frequently need to be shut in due to hurricanes or infrastructure maintenance. You don't drill a $100 million deepwater well without all the bells and whist
270.
by jofer 6y ago
I've used inkscape regularly for large print scientific posters for many years. It definitely used to struggle in that regard. It's gotten significantly better about handling high resolution figures and using many layers in recen

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