gbrown

24 ms·

151.
by gbrown 6y ago
The launch termination system at least needs a receiver
152.
by gbrown 6y ago
Makes sense - it seems like this basically takes an idea that’s already applied frequently (fit a set of replicate models to prior predictive simulations) and adds a simple to apply comparison metric (data averaged posterior distribution to
153.
by gbrown 6y ago
I rewrote some stochastic simulation R code in Julia recently, and it sure feels like the future.
154.
by gbrown 6y ago
Cool, didn’t know that.
155.
by gbrown 6y ago
Obligatory: https://youtu.be/bkJZbyrfx-Q It’s really too bad that PBS canceled infinite series.
156.
by gbrown 6y ago
This is already a thing (tracking + derotator+ ccd in alt-az), but it’s super expensive and doesn’t work as well as just using an equatorial mount in the first place. More basic tracking dobs are used for planetary and lunar astronomy thoug
157.
by gbrown 6y ago
Your parenthetical is why I commented - astrophotography isn’t just more advanced visual astronomy, it’s really a separate hobby.
158.
by gbrown 6y ago
That might be true in general, but this is a forum full of highly technical people. At the end of the day, doing basic Astro is not rocket science, and if OP is into photography they might be more interested in buying a small tracking mount
159.
by gbrown 6y ago
Unless you want to image things, either for EAA or full blown astrophotography, in which case the question is more about the mount than the telescope.
160.
by gbrown 6y ago
Telescopes: depends on your use case. Check out the sticky on reddit.com/r/telescopes Books: Again, depends, but Turn Left at Orion and Cosmic Challenge are good ones.
161.
by gbrown 6y ago
I believe the fins are primarily radiators. Conduction, convection, radiation.
162.
by gbrown 6y ago
Yeah, you see a lot of penalized regression techniques applied in that field. With that said, identifying useful non-linearity might just require moar samples.
163.
by gbrown 6y ago
Don’t forget that we can put a lower bound on the size of the actual (ie, not just the observable) universe and it’s many times greater in size. It could even be infinite, but at the very least it’s larger than we can see.
164.
by gbrown 6y ago
Is this now considered correct/acceptable terminology? Back in my day optimization techniques weren’t the same thing as models. You can get point estimates for many completely different models using gradient descent. The article clarif
165.
by gbrown 6y ago
At least glass is basically perfectly recyclable though.
166.
by gbrown 6y ago
You’re revealing your ignorance of modern physics, as well as some pretty astonishing hubris. You’d compare dark mater, which has numerous possible explanations all of which are in search of empirical tests, to the panoply of human religion
167.
by gbrown 6y ago
Hmm, I’m not sure I understand your point. Scientists explicitly try to avoid positing magical things, and even when things get into the realm of untestability at our scale, it’s hedged: “Here’s a cosmological model that might be true given
168.
by gbrown 6y ago
That’s not a violation of thermodynamics at all, since the earth is not a closed system, and it’s also about averages. You can have local fluctuations.
169.
by gbrown 6y ago
I’ll try to look up details, but I’m fairly confident. I discovered it because I was installing packages on a server which was firewalled, and had the CRAN repository proxied.
170.
by gbrown 6y ago
Last time I checked, installing some of the tidyverse packages from CRAN resulted in other packages being directly cloned from github and installed in the process. That sort of behavior really shouldn’t be allowed.
171.
by gbrown 6y ago
In addition to the other objections, the polyurethane would likely disintegrate.
172.
by gbrown 6y ago
Oxygen deprivation
173.
by gbrown 6y ago
You can orally actually vaccinate the reservoir species (mice) in targeted areas as well to disrupt the enzootic cycle.
174.
by gbrown 6y ago
Most news articles these days will follow it with language like: "__ marked the hottest July on record. In fact, __ of the top ___ Julys have occurred in the last 10 years." Reputable news outlets are also good about including boi
175.
by gbrown 6y ago
Most discussions of temperature extremes I’ve seen focus on their change in frequency. That’s not a distortion at all, that’s a changing average (and corresponding increase in volatility).
176.
by gbrown 6y ago
> Which, it probably goes without saying, should scare the shit out of anyone who cares about the principles of the free Internet. I worry more about Google et. al. killing the free and open internet by creating centralized walled garden
177.
by gbrown 6y ago
Even worse, you might pick up regional terms which have different impact elsewhere. Mexican Spanish has some common swear terms that are super offensive elsewhere in the Spanish speaking world. Even within Mexico, it varies by region and co
178.
by gbrown 6y ago
There should really be a database of such devices.
179.
by gbrown 6y ago
This question would be super bizarre to anyone coming from a stats background. Others have commented on the role of inference/estimation, and prediction in small data or non-black-box contexts, so I’ll just add that there are deep theo
180.
by gbrown 6y ago
I imagine it depends on which algorithm you’re using - maybe with their VB functionality (I almost entirely use the souped up NUTS algorithm for full Bayesian inference). It also likely depends on how well conditioned your model is - even i

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