Matthew Wright 👨🏼‍🦼
banner
mcmwright.bsky.social
Matthew Wright 👨🏼‍🦼
@mcmwright.bsky.social
Acoustics, Folk Music, Disability, not necessarily at the same time. OHMI trustee.
November 9, 2025 at 8:12 PM
Look how they massacred my La-Z-Boy
October 10, 2025 at 12:39 PM
Decibel addition made easy #Acoustics
October 4, 2025 at 5:27 PM
"I was full porky pigging it in a drafty dome" - Colleen Rafferty
September 7, 2025 at 4:14 PM
Here's the same field with just dots, more closely spaced
September 7, 2025 at 3:23 PM
Heard that arbitrary gifs could now be posted, so here's an acoustic dipole with path-lines
September 7, 2025 at 3:10 PM
From The King's English (1998):
September 2, 2025 at 11:52 PM
But in the subsonic, evanescent case they follow elliptical paths, isn't that cool?
August 31, 2025 at 2:05 PM
These are fairly standard animations, but what I worked out how to do today, and am feeling unbearably smug about, is to include the path-lines followed by the fluid elements as they vibrate. For the supersonic case they just move back and forth in the direction of propagation
August 31, 2025 at 2:05 PM
What if the bending wave travels subsonically? Then there's nothing left for a horizontal wavelength and instead the amplitude rapidly diminishes with distance from the wall - the jargon is that it evanesces in that direction
August 31, 2025 at 2:05 PM
Before I switch to the new preferred colourmap, here's a couple of animations I made for a short course I'm teaching on that use bwr for consistency with the rest of the slides (sorry).

So, I present a solution of the 'wavy wall' problem in acoustics
August 31, 2025 at 2:05 PM
Up against it, under the same conditions is SBVe, where the negative pressure is represented by sky-blue rather than regular blue
August 31, 2025 at 8:48 AM
Thanks for all your comments, here and elsewhere. BuVe (blue-white-vermillion) seems to be the winner on accessibility so far, so it goes through to the next round, in which the dots are suppressed
August 31, 2025 at 8:48 AM
And SBOr, ibid
August 30, 2025 at 12:48 PM
BuVe from the same set (which is based on the Okade & Ito colour-set)
August 30, 2025 at 12:48 PM
Late entry: BurP from Nathan Sanders CBcm
August 30, 2025 at 10:58 AM
Lastly, for now, here's broc from the same collection
August 30, 2025 at 9:45 AM
And here's vik from F Crameri's scientific-colour-maps
August 30, 2025 at 9:45 AM
Next is the shifted version of the twilight map, which is grey, rather than white at the centre
August 30, 2025 at 9:45 AM
Here's pyplot's seismic, which is more intense but I'm not sure that makes it more accessible
August 30, 2025 at 9:45 AM
Testing colour-maps for acoustic-wave visualisations; grateful for any feedback anyone has

First up is pyplot's bwr, which I've been using so far, but isn't great
August 30, 2025 at 9:45 AM
"It's really cool when the academic consensus on a topic changes. Unless it's those woke humanities people, then it's just stupid. Agenda, what agenda?"
August 28, 2025 at 9:11 AM
Apparently it's OK for the consensus to change in other disciplines
August 28, 2025 at 8:47 AM
I was saying " "=""> in the world" loooong before him
August 23, 2025 at 1:03 PM
Just as Turing foretold (check the sum)
August 21, 2025 at 8:09 AM