mrgriscom

6 ms·

1.
by mrgriscom 18d ago
I made a "first person" perspective rendering of this: https://mrgris.com/img/landfall/longest.png
2.
by mrgriscom 1mo ago
Self-experimentation allows one to conduct science without the imprimatur of the IRB. IRBs, in the name of ethics, fashion themselves as the sole arbiter of what science may be done. Ergo, any loophole that circumvents their authority is pr
3.
by mrgriscom 3mo ago
He should add these concept displays from Posy https://www.youtube.com/watch?v=RTB5XhjbgZA
4.
by mrgriscom 8mo ago
The circuit breaker from the restoring power scene is real too: https://www.google.com/search?q=westinghouse+spb-100&udm=2
5.
by mrgriscom 9mo ago
This is plainly false though. You're saying beats can't be localized to less than one second of precision (regardless of track length, which already smells suspect). Humans can localize a beat to within 50ms.
6.
by mrgriscom 10mo ago
There's a concrete ship wrecked just offshore of Cape May Point in NJ. It has been deteriorating for many years and soon nothing will remain above the waterline.
7.
by mrgriscom 10mo ago
I did raise eyebrows once of the person in the row behind me. I said I was listening to ATC and that seemed to placate him. I do believe most airlines have a blanket ban on radio equipment, even receive only. Some even ban using GPS!
8.
by mrgriscom 11mo ago
None of the founding fathers were US citizens at birth because the US didn't exist yet.
9.
by mrgriscom 1y ago
A photodiode (BPV23NF iirc) connected straight to the dongle's SMA connector. Yes, I believe it would be operating in photovoltaic mode, where the incident IR light from the remote control will induce a small voltage. Yes, I had direct
10.
by mrgriscom 1y ago
SDR is amazing! Here are some more things you can do with your RTL-SDR after the first 50: Meteor weather satellite reception (Russian counterpart of the NOAA satellites, but digital, so higher res and in color) Digital Radio Mondiale -- di
11.
by mrgriscom 1y ago
This question ate away at me too, and I also scratched the itch: https://mrgris.com/projects/landfall/ Specifically mine deals with what you'd hit looking across the ocean from a coast. I had long wanted to
12.
by mrgriscom 3y ago
This is why you don't travel back in time and kill Hitler
13.
by mrgriscom 3y ago
Ah yes, I have seen those before (quite rare). IIRC they don't have holes for the grounding prong, which should prevent plugging in any modern 240V appliance.
14.
by mrgriscom 3y ago
I think you're confusing a NEMA 5-20 (120V, 20A) and NEMA 6-20 (240V, 20A). Each has one blade sideways but they're mirror images of each other. T-slot varieties of both outlets are common, which can accept both 15A and 20A versio
15.
by mrgriscom 4y ago
I just had some fraudulent withdrawals on my bank account pretending to be paypal. They did the two sub-$1 authorization transactions, then took out $400 then "reversed" it by putting it back into my account... maybe to attract le
16.
by mrgriscom 4y ago
Always a classic: http://harmful.cat-v.org/software/xml/s-exp_vs_XML
17.
by mrgriscom 4y ago
In my dabblings with SDR, playing around with analog video was one of the highlights. Something about this technology that was such a prominent yet opaque feature of my youth and now being able to control it from the inside out felt extreme
18.
by mrgriscom 4y ago
Residents of the US territories are US citizens with the exception of American Samoa
19.
by mrgriscom 4y ago
A walk down memory lane for sure... I loved my Eee PC 901 and still have it. I used it to build a 'carputer' / navigation system before I had a smartphone. http://mrgris.com/projects/birdseye/ I rem
20.
by mrgriscom 4y ago
It is quite difficult to visualize and it took me a long time to "get it". The path of the sun's annual motion relative to the stars is determined solely by my physical progress in orbit around the sun. A planet's axial
21.
by mrgriscom 4y ago
It's a misconception that the figure-8 shape is due to the eccentricity of the Earth's orbit. Most of the variation in the sun's horizontal apparent motion is also due to Earth's axial tilt. Orbital eccentricity only con
22.
by mrgriscom 4y ago
This is incorrect. The analemma would still be a figure-8 even with a circular orbit, but it would be symmetric -- the orbital eccentricity only adds the asymmetry we see in Earth's analemma. This is because the sun on an axial-tilted
23.
by mrgriscom 5y ago
I used the typical GDAL tools -- gdalwarp, gdaldem, with some associated scripts of my own. I recall not using GDAL's image pyramid builder as I ran into some issues with wrapping at the int'l date line and in general wanted more
24.
by mrgriscom 5y ago
Author here. To provide some context, my main impetus for creating this map was to facilitate my interest in topographic prominence [ https://en.wikipedia.org/wiki/Topographic_prominence ]. Prominence requires finding a
25.
by mrgriscom 5y ago
I've actually been here: http://mrgris.com/travel/blog/labrador/2/ Quite a weird place, though definitely not 50m tall.
26.
by mrgriscom 5y ago
"The provisions of this Agreement requiring disclosure and assignment of Inventions to Google do not apply to any invention that I have developed entirely on my own time without using any of Google Property (as defined below) or Google
27.
by mrgriscom 5y ago
Are there any teletext systems still in use that you could receive over-the-air with an SDR?
28.
by mrgriscom 6y ago
I'm quite interested in the subject matter here but jesus that was long-winded...
29.
by mrgriscom 8y ago
Should include a warning: cheap addressable LEDs from aliexpress are extremely addictive... https://photos.google.com/share/AF1QipOOcHCF-EgPoRngivJNbxA_...
30.
by mrgriscom 8y ago
Allow deferral of excess property tax payments until the property is sold. Simple as that. Furthermore, landlords shouldn't be able to raise rent faster than their property taxes go up.

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