hamiltonkibbe

15 ms·

91.
by hamiltonkibbe 11y ago
Yes, but obviously they don't work if your signal is already aliased. The most common example would be when decimating a signal, e.g using a digital filter with a cutoff at 22khz before down sampling from 192kHz to 44.1kHz. This is oft
92.
by hamiltonkibbe 11y ago
Intermodulation creates both sum and difference frequencies, the latter can certainly fall into the audible spectrum, assuming the ultrasonic frequencies are within the passband of your recording medium. The sum component can also alias bac
93.
by hamiltonkibbe 11y ago
What happens when when 52MWh (~216 tons of lithium iron batteries) goes into thermal runaway?
94.
by hamiltonkibbe 11y ago
Given that cigarettes kill orders of magnitude more people annually than have ever died from nuclear power, I would posit that it is far more dangerous. And the fact that the people who are most likely to smoke are likely to be relying on t
95.
by hamiltonkibbe 11y ago
Just like the bribes required to force the taxpayer to allow the sale of cigarettes, right?
96.
by hamiltonkibbe 11y ago
"Don't worry, the spec'd dose rate from this Therac-25 is way below Denver background levels... No need for a dosimeter here..."
97.
by hamiltonkibbe 11y ago
Yes
98.
by hamiltonkibbe 11y ago
> If so, they will also have to think about a quick way to deploy security fixes remotely. One way could be working with connectivity solutions for Embedded Systems (e.g. SigFox). Something tells me giving the car's immobilization s
99.
by hamiltonkibbe 11y ago
This was my reaction too. "Early dirt roads followed strikingly similar paths to today's paved highways..."
100.
by hamiltonkibbe 11y ago
My first thought was "Hey this is HN, and that's exactly what PCA is for!" Followed shortly thereafter by "I wonder where you get/how you generate a dataset of the vital signs of drowning children..."
101.
by hamiltonkibbe 11y ago
Survey equipment. RTK GPS for position reference and heading on the surface, and lasers. Lots of lasers. see e.g. http://www.leica-geosystems.us/en/Tunnel-surveys_1693.htm
102.
by hamiltonkibbe 11y ago
Which is presumably one of Universal's machines in this case... Better be safe and take down all universalpictures.com properties
103.
by hamiltonkibbe 11y ago
I'd imagine the feeling is similar to the first day back in the RC after watching K-19.
104.
by hamiltonkibbe 11y ago
assumong 330m/s for the speed of sound, you can get 1 inch of precision at a sample rate of just under 13kHz. With 3 channels of 12-bit accelerometer data that's ~ 58kBps with no compression which doesn't seem too out there.
105.
Show HN: Pycdef – Generate C Constant Definitions from Python Arrays(github.com)
3 points by hamiltonkibbe 11y ago|0 comments
106.
by hamiltonkibbe 11y ago
An Erlang is a unit of load on a cell tower (or more generally in any telephony circuit). Edit: Not sure if this is what the parent was referring to, but if the tower software was written in Erlang, it's certainly an interesting coinci
107.
by hamiltonkibbe 11y ago
The dose rate on contact (assuming someone is handling it) or at the location in which that person would be working is easily measured. Radiation workers have an annual dose limit, and it is trivial to determine how long they can work somew
108.
by hamiltonkibbe 11y ago
I don't know that it's possible to have a realtime application running in an interpreter (which makes no realtime guarantees as far as I know) running on top of a soft-at-best-realtime OS.
109.
by hamiltonkibbe 11y ago
It is unfortunate. In most cases you can assume until proven otherwise that when someone says "realtime" they mean "really really soft soft-realtime" (sometimes referred to as "flaccidtime") rather than hard- o
110.
by hamiltonkibbe 11y ago
Using only a compass and the knowledge that you were somewhere on the planet earth, could you determine the shortest route from your locations to Chicago?
111.
by hamiltonkibbe 11y ago
you don't need an initial heading measurement but you still need to know where you are
112.
by hamiltonkibbe 11y ago
https://xkcd.com/1185/
113.
by hamiltonkibbe 11y ago
You still need a way of determining the initial position/pose
114.
by hamiltonkibbe 11y ago
Drums > Space
115.
by hamiltonkibbe 11y ago
It would probably not be practical just because you'd need extremely long Fourier transform windows. At 100bom and 44.1khz, downbeats are 26000+ samples between downbeats. It may work with shorter windows for music that is rhythmically
116.
Show HN: Cdef – Generate C Constant Definitions from Matlab Vectors(github.com)
12 points by hamiltonkibbe 11y ago|0 comments
117.
by hamiltonkibbe 11y ago
The whole fallacy with articles like this is that they all too often show why a language is unsuited for some subset of tasks and then proclaim "death to $LANGUAGE." There's a time and place for C, and while writing a web fra
118.
by hamiltonkibbe 12y ago
I'd been wondering how to do this... https://github.com/mahmoud/boltons/blob/master/boltons/easte...
119.
by hamiltonkibbe 12y ago
Not sure why this was downvoted, sugar was likely the first example of the commodification of drugs, and the beginning of a global drug trade....
120.
by hamiltonkibbe 12y ago
The point I was making about turning the guitar up halfway was that you need to design amplifier gain stages so that there is not so much gain that the amplifier hits the rails with a reasonable input signal. E.g. If your preamp stage has a

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