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Matthew Wright

@mcmwright.bsky.social

Acoustics, Folk Music, Disability, not necessarily at the same time. OHMI trustee.

181 Followers  |  123 Following  |  1,079 Posts  |  Joined: 20.09.2023  |  1.8804

Latest posts by mcmwright.bsky.social on Bluesky

Question for my fellow STEM educators: when we say "show your working" what do we mean? What distinguishes sufficient working from insufficient? Would using a symbol that's not in the question without saying, in words, what it represents cost marks?

07.08.2025 10:17 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Moths, that is

09.08.2025 13:35 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Heads up ladies, many of you will soon be on the receiving end of a bad poem and a hopeful expression

09.08.2025 11:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

We've got mint motha in the garden

09.08.2025 11:51 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Love that show! The real hero is the Mail Robot

07.08.2025 12:25 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Question for my fellow STEM educators: when we say "show your working" what do we mean? What distinguishes sufficient working from insufficient? Would using a symbol that's not in the question without saying, in words, what it represents cost marks?

07.08.2025 10:17 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Email, they should be using Teams instead [ducks]

07.08.2025 09:56 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

We have consumed our last kWh of gas!

06.08.2025 18:29 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Is that the one Flight of the Conchords used?

06.08.2025 16:39 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Putting your PhD to use!

06.08.2025 16:35 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Sausages and cheese, German supermarket

Sausages and cheese, German supermarket

the scenario we all feared

05.08.2025 18:33 β€” πŸ‘ 3675    πŸ” 947    πŸ’¬ 35    πŸ“Œ 22

A friend of mine who specialised in music hall songs sang it at his own funeral (via a recording) along with, obviously, Isn't it Grand to be Bloomin' Well Dead

05.08.2025 10:30 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Every time I'm tempted to moan about our building project I remind myself that it avoids having to move

05.08.2025 10:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Pro-natalists also called for more gooseberry bushes to be planted

05.08.2025 07:19 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

A rat done bit my sister Nell, with fission on the moon. Her arms and legs began to swell, with fission on the moon. I can't pay no doctor bills, but fission's on the moon. Ten years from now I'll be paying still, while fission's on the moon.

04.08.2025 21:15 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Don't have an ft subscription so I can't click through to find out whether he thinks "UK being left behind" is good or bad, given his track record...

04.08.2025 12:27 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

"We should guarantee that British soldiers can never recruit local translators ever again" is what NF is saying

04.08.2025 12:19 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Dublin taxi-driver, when asked about the changes, raving about wild rice: "Now, I thought I knew all about rice, but..."

04.08.2025 12:16 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Footnote 1 ftw

03.08.2025 21:29 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Tenor horn, surely

03.08.2025 13:26 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Five young people from Hampshire embark on international Scout adventure The group are taking part in the 16th World Scout Moot in Portugal and are among 500 UK Scouts attending the event.

Moot

02.08.2025 18:57 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

These predate the campaign to eliminate density (tm)

02.08.2025 15:29 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Slides for an acoustics lecture

Slides for an acoustics lecture

Behold my (hopefully) accessible slides! I spent an embarrassingly long time dithering between using colour or font to indicate the unknowns before the penny dropped and I realised I could use both

02.08.2025 15:15 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

"When the first of August came round, the Professor realized he had pleasantly trifled away nearly two months at a task which should have taken little more than a week."

--Willa Cather, 1925 and timeless

01.08.2025 12:17 β€” πŸ‘ 725    πŸ” 199    πŸ’¬ 15    πŸ“Œ 35

I've been awake for HOURS

01.08.2025 06:20 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Units of density (should you ever need it): rayl seconds per metre

01.08.2025 05:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Putting a zero subscript on c and z means, putting them on k, \lambda etc. Tempted to drop them all, were it not for wanting to have unadorned z for surface impedance and wanting to write \zeta = z/z_0

01.08.2025 05:03 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Why? Because:

01.08.2025 04:55 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

-\nabla p = \rho_0 \partial \mathbf{u} / \partial t

->

-c_0 \nabla p = z_0 \partial \mathbf{u} / \partial t

Also it's now called the Acoustic Momentum Equation (AME)

01.08.2025 04:48 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

The campaign to eliminate density from #Acoustics starts here

01.08.2025 04:41 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

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