Y
HN Search
Hacker News Search
new
|
comments
|
top
|
jobs
jofer
searching PlanetScale…
1.
▲
2.
▲
3.
▲
4.
▲
5.
▲
6.
▲
11 ms
·
91.
▲
by
jofer
2y ago
I finally live somewhere where it's possible to grow hops (albeit it not ideal), and I _really_ want to experience brewing with hops straight off the vine! I've always been jealous of y'all in the Pacific NW in that regard (
92.
▲
by
jofer
2y ago
I agree, but to be fair, one of the largest roles water chemistry plays is accentuating hop bitterness or dialing it back. Gypsum (CaSO4) will accentuate hops. Calcium Chloride will not as much, but changes mouthfeel and emphasizes malts
93.
▲
by
jofer
2y ago
"Orthorectified" (i.e. on a map) means both. It's corrected to a perpendicular to the observer view _and_ also corrected for scale distortion due to elevation (the top of a mountain is closer to the sensor and therefore appea
94.
▲
by
jofer
2y ago
That's a point that far too few people in the remote sensing industry understand!! Put another way, try measuring the width of small objects in the scene. You'll find there's a minimum width things will appear regardless of h
95.
▲
by
jofer
2y ago
Quick geospatial note that's important for accurately geolocating these images: You need a DEM to use RPCs for geolocation. Running things through gdalwarp as was done here will assume no terrain and 0 elevation. That will lead to si
96.
▲
by
jofer
2y ago
You'd be amazed how bad hospitals can be at keeping track of fairly critical things. I had a cousin who voluntarily checked himself into the hospital related to severe withdrawal symptoms (and had bouts of psychosis related to said wit
97.
▲
by
jofer
2y ago
Yeah, I came across that earlier. Definitely impressive!! I completely agree with your general point (articulation matters a ton!) but I have to take a bit of issue with: > "The details of your AWD or 4WD system don't matter as
98.
▲
by
jofer
2y ago
Not by that definition, no.
99.
▲
by
jofer
2y ago
https://www.nps.gov/cany/learn/management/compendium.htm > High Clearance Four-Wheel-Drive (4WD) Vehicles > A Jeep, sport utility vehicle (SUV), or truck type with at least 15-inch tire rims and at leas
100.
▲
by
jofer
2y ago
NPS defines 4WD specifically as part time four wheel drive with a transfer case and low range, FWIW. Low range is a big part of it. And yes, their definition technically excludes higher end "full time 4WD" systems in some cases,
101.
▲
by
jofer
2y ago
AWD has come a long way in that regard in the last few years. It's still highly variable from manufacturer to manufacturer, but systems that use internal clutches alongside brakes (and not only brakes) to control wheel movement + tight
102.
▲
by
jofer
2y ago
Most stock pickups, actually. You'd be surprised how low the clearance is on a stock f150 without the various off-road packages. I.e. you can easily have a pickup with basic 4wd but only 8 inches of ground clearance. That's techni
103.
▲
by
jofer
2y ago
Yeah, I completely agree. I just meant that alerts you don't immediately respond to or are "noisy" aren't necessarily things you want to delete. Having low priority "noisy" alerts is not a bad thing.
104.
▲
by
jofer
2y ago
There is a lot to be said for "smoke test" metrics. Things you expect to have frequent false positives, but are sometimes early indicators of larger problems or indicators of where to look deeper if something else goes sideways.
105.
▲
by
jofer
2y ago
That's largely because it's a byproduct of common hydrocarbon refining techniques. It's a bit silly to throw that away once it's produced.
106.
▲
by
jofer
2y ago
There are lots of different types of hydrogen production, but many of them are "clean" (or at least as clean as solar, anyway). The main issue with hydrogen is storage and transport. It's not an unsolvable problem, by any me
107.
▲
by
jofer
2y ago
It's a blowout. That means what it sounds like. An explosion and a fire. To fix it, you have to put out the fire. Once you put out the fire, you're still releasing methane. Methane is flared instead of released under normal co
108.
▲
by
jofer
2y ago
Big oil arguably had some of the closest up until the past ~10 years. I think folks may not realize how large Exxon and Shell's pure R&D labs are/were. The other majors have cut much more heavily on pure R&D in the past 2
109.
▲
by
jofer
2y ago
Shell pops up in a ton of places even where it's not used directly. Build systems are a good example. I have yet to come across something that doesn't touch shell at some level unless it also doesn't touch an OS. But maybe th
110.
▲
by
jofer
2y ago
Can you seriously name something other than very low level embedded software that doesn't involve shell at some level? I certainly can't...
111.
▲
by
jofer
2y ago
Any time you're running lots of CLI utilities directly is a good start. Bash is very very good for that, and other than perl, most other things aren't particularly good at it.
112.
▲
by
jofer
2y ago
For anyone wondering whether or not you really need to know bash: Yes. Yes, you do. Somewhere in the middle of every stack is a bunch of bash and makefiles. Don't replace that or avoid it. Embrace it. It's not perfect, but it'
113.
▲
by
jofer
2y ago
You're not editing code in the CLI. You're editing code in your preferred editor/IDE. ipython + %edit works wonders. That's one of the main reasons to avoid notebooks and stick with CLI-based or similar tools. Jumping i
114.
▲
by
jofer
2y ago
So have I (not FAANG, though). I've been working in scientific python for over 20 years and long before notebooks came to the python world. (Yes, pre-numpy) And I've seen notebooks abused far more than used well. The same general
115.
▲
by
jofer
2y ago
Notebooks are primarily a _teaching_ tool, not code or an experimentation interface. I know that's not how they're used, but it's really bizarre to me that people use them for exploratory data analysis. They're great for
116.
▲
by
jofer
2y ago
Because volume expansion from a reaction wouldn't be that large. Things aren't burning/etc. Direct injection of large volumes of water (with those things in it) is more than enough to explain it. No need for reactions of any
117.
▲
by
jofer
2y ago
Ah, right, you mean _outside_ the memory block of the array! Sorry, my mind was just foggy this morning. That's not strictly possible, but "circular" references are with "stride tricks". Those can accomplish simil
118.
▲
by
jofer
2y ago
You actually can do the "offset by 2 bytes back" with a reshape + indexing + reshape back. But I suspect I'm still missing something. I need to read things in more depth and try it out locally. By "numbs" here, I&#x
119.
▲
by
jofer
2y ago
I'm confused on the need for cytpes/etc here. You can directly modify somearr.strides and somearr.shape. And if you need to set them both together, then there's numpy.lib.stride_tricks.as_strided. Unless I'm missing s
120.
▲
by
jofer
2y ago
It's also based on open and freely accessible data: Sentinel2. That's not to take anything away from what they're doing. They've done a very very nice job. But there's a precedent for folks expecting open data and p
More ›