GlenTheMachine

11 ms·

61.
by GlenTheMachine 2y ago
In my case the interstate was put in 30 miles north of town before I was born. In the 1960s the town had been an active town due to being near the intersection of two major state roads, and actually had three large motel complexes at that i
62.
by GlenTheMachine 2y ago
I grew up in the poorest county in my state. It was an hour to anywhere. There were no bookstores, no movie theaters, no fast food restaurants, nothing but cows for miles. There wasn't even a public library. It might be true that in an
63.
by GlenTheMachine 2y ago
OK, so I admit I also washed my hands of C++ sometime around 2009 and I am being forced back into for <reasons>, and I had no idea what these auto and lambda keywords were. Can anyone point me to a learning reference that will let me
64.
by GlenTheMachine 2y ago
There are two very distinct types of cinnamon…
65.
by GlenTheMachine 2y ago
Correct. On the other hand, neither one is guaranteed to be optimal for continuous thrust maneuvers, which with electric prop are increasingly common.
66.
by GlenTheMachine 2y ago
The Hohmann transfer is formally the most fuel efficient two-burn transfer. Bi-elliptic transfers require three burns.
67.
by GlenTheMachine 2y ago
“ What if you take a function that has bounded support in the time domain, and then turn it into a periodic function?” When you perform a finite sample reconstruction, this is essentially the unstated approximation you’re making.
68.
by GlenTheMachine 2y ago
If you look at the Wikipedia entry on the Nyquist Sampling Theorem, you should note that the summations to reconstruct the original signal go from negative infinity to positive infinity. In other words, that sum requires an infinite number
69.
by GlenTheMachine 2y ago
Nyquist is a mathematical statement. As such, it has two commonly overlooked requirements: - the signal being sampled has to be stationary - you have an infinite number of samples In that case, a sampling frequency of 2N+epsilon will perfec
70.
by GlenTheMachine 2y ago
In my experience no research paper ever gets rejected, at least for reasons that have anything to do with their content. If your paper gets rejected, it is almost always because you failed to put the appropriate markings on the paper, or
71.
by GlenTheMachine 2y ago
Here's an example from my corner of the Defense Department: In order to publish a research paper, it has to be reviewed for suitability for public release. This process is more than a little silly, because it requires seven levels of r
72.
by GlenTheMachine 2y ago
I think this is exactly right, and I've been thinking that for some time before reading this article. I'm an ML researcher and a sheep farmer. My lambs are up on their feet, nursing, thirty minutes after birth. Once they have enou
73.
by GlenTheMachine 2y ago
No, unfortunately. QNX was itself not exactly open source, but at least used a “source code available for inspection” model and apparently had a fantastic user community. Then it got bought by RIM (BlackBerry). The source code went away and
74.
by GlenTheMachine 2y ago
vxWorks
75.
by GlenTheMachine 2y ago
This would be during formal testing, which is similar to what you might know as “acceptance testing”. The spacecraft doesn’t “enter safe mode” during development. If you’re paying two billion $ for something you become very very interested
76.
by GlenTheMachine 2y ago
Thee are a bunch of comments here asking why one would run Windows on a spacecraft. I am a spacecraft engineer. I don’t see anything in the linked article indicating that they are actually running Windows - the BSOD claim is tongue-in-cheek
77.
by GlenTheMachine 2y ago
VxWorks, usually
78.
by GlenTheMachine 2y ago
The alignment has to be better than half a wavelength. That's doable for RF, but for optical telescopes you're talking nanometers. That's not possible (currently or in the foreseeable future) for a spacecraft constellation.
79.
by GlenTheMachine 2y ago
This might be a dumb question, but how does this interact with dark matter observations? Do magnetic fields in any way help explain higher than expected galactic orbital rates?
80.
by GlenTheMachine 2y ago
Settings->Security->Face ID. Set to "on". By design, 1Password always makes you re-authenticate every time you lose focus on the app. But Face ID (or Touch ID) makes reauthenticating a lot less painful.
81.
by GlenTheMachine 2y ago
Farmer and roboticist here. There is a lot of discussion in a lot of threads about the design of the robot to water "from the top" by spraying the leaves instead of watering directly on the roots, and whether that's a good or
82.
by GlenTheMachine 2y ago
At this point you'd typically be managing a team of software developers. But yes.
83.
by GlenTheMachine 2y ago
"Most agencies are hiring new grads at GS-7 or GS-9 (in SF that's $61k to $75k to start) which is a joke." This has not been my experience, my agency hires new PhDs at the GS-13 level and BS/MS graduates at the GS-12 lev
84.
by GlenTheMachine 2y ago
Civil servants living in the DC or SF metro areas max out at about $195k not including benefits. The benefits include an actual pension, really good health insurance, and 1-1 salary matching into a 401(k)-like retirement fund (the TSP). Als
85.
by GlenTheMachine 2y ago
My group invented GPS.
86.
by GlenTheMachine 2y ago
I work for a government research lab. Our business model is that we don't receive government-budgeted money, we actually sell our services to other parts of the government. So in effect we have a bunch of researchers and engineers who
87.
by GlenTheMachine 2y ago
This right here. If you don’t pay for your service it doesn’t belong to you. This incident is exactly what precipitated my switch to Fastmail.
88.
by GlenTheMachine 2y ago
I set them up in 2003. At the time I don’t think there was any concept of a family account.
89.
by GlenTheMachine 2y ago
I did this for my son and my daughter for many years. Unfortunately, I did it by making them gmail accounts. Google without warning closed both accounts when my daughter was 12 for being under-age. I lost everything. I tried to appeal to ge
90.
by GlenTheMachine 2y ago
cd / (intending to cd ~) rm -rf * Yep; I actually did it. By mistake, as a junior in a CS research lab.

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