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@simon_brooke@mastodon.scot
2025-09-24 16:02:51

I'm still learning #OpenSCAD. This part, the lower knuckle for the four-bar linkage of the #Tricycle, isn't as smooth and aerodynamic as I'd like. But it's good enough, certainly for now.
The blue colour is just to make it easier to work with; the finished part will probably be c…

A CAD drawing of the lower knuckle of the four bar linkage. The body of the knuckle is an aerofoil teardrop in plan, with a radiused top and a rounded bottom. A boss on the outer (left) side surrounds the hole for the wheel axle. On the inner (right) side is an aerofoil stub to which the aerofoil section lower bar will be bonded. In the top of the knuckle is a radiused cavity in which the pivot on the lower end of the lateral bar will rotate. The part, which is coloured blue with yellowish-gre…
A view of the same part from in front. The hole for the shaft on which the lateral bar pivot will rotate can be seen.
The same part viewed from the lower front left.
The part in context. The lateral bar, wheel, and brake disk can all be seen, as can the lower bar, although this doesn't yet correctly join to the knuckle.
@primonatura@mstdn.social
2025-09-23 14:00:07

"Air pollution can affect how well we sleep, scientists discover"
#Pollution #AirPollution #Health

Air pollution can affect how well we sleep, scientists discover
Global metastudy finds long-term exposure to pollutants is linked to shorter or lower-quality rest

@benb@osintua.eu
2025-08-22 11:27:02

Ukraine hits Russian drone base at occupied Crimean airfield, Navy claims: benborges.xyz/2025/08/22/ukrai

Ukraine hits Russian drone base at occupied Crimean airfield, Navy claims - Tracking information about the Russian War against Ukraine
According to the Navy, Ukraine destroyed up to three Mohajer-6 drones and two Forpost drones at the Khersones airfield in the occupied peninsula.

@memeorandum@universeodon.com
2025-10-23 00:35:56

Trump Administration's Arrival on Bluesky Highlights Growing Pains for Open Networks (Erin Kissane/The Tech Policy Press Podcast)
techpolicy.press/trump-adminis
memeorandum.com/251022/p166#a2

@deabigt@universeodon.com
2025-09-23 20:13:50

Oddly, what gets me is the selling off of their belongings. Do they think they can take money but not stuff?
Christian TikTokers Are Quitting Their Jobs And Selling Their Cars Because They’re Convinced The Rapture Is Today ground.news/article/they-give-

@arXiv_physicsfludyn_bot@mastoxiv.page
2025-09-23 10:10:00

Compact representation of transonic airfoil buffet flows with observable-augmented machine learning
Kai Fukami, Yuta Iwatani, Soju Maejima, Hiroyuki Asada, Soshi Kawai
arxiv.org/abs/2509.17306 …

Compact representation of transonic airfoil buffet flows with observable-augmented machine learning
Transonic buffet presents time-dependent aerodynamic characteristics associated with shock, turbulent boundary layer, and their interactions. Despite strong nonlinearities and a large degree of freedom, there exists a dominant dynamic pattern of a buffet cycle, suggesting the low dimensionality of transonic buffet phenomena. This study seeks a low-dimensional representation of transonic airfoil buffet at a high Reynolds number with machine learning. Wall-modeled large-eddy simulations of flow o…

@NFL@darktundra.xyz
2025-09-21 16:09:32

Best of NFL Week 3's arrivals, featuring Adam Thielen's retro Randy Moss jersey espn.com/nfl/story/_/id/463063

NFL Week 3: Best team arrivals -- from Josh Allen to Tua - ESPN
The stars are back in the pregame tunnels strutting their stuff with fits tailored to their style.

@losttourist@social.chatty.monster
2025-09-23 13:37:44

I've no idea why everyone is so excited about the arrival of the raptures. They were the scariest dinosaurs in Jurassic Park if you ask me.
#rapture

@ukraine_live_tagesschau@mastodon.social
2025-09-23 08:06:02

Ukrainische Drohnen stören russischen Flugverkehr
Mehrere russische Flughäfen haben wegen ukrainischer Drohnenangriffe in der Nacht den Betrieb einschränken müssen. Aeroflot als größte Fluglinie Russlands teilte am Morgen mit, es werde noch den ganzen Tag dauern, bis sie auf ihrem Heimatflughafen Scheremetjewo in Moskau den Flugplan wieder einhalten könne, wie die Nachrichtenagentur Tass meldete.
Der größte Flughafen Russlan…
📑

Ukraine-Liveblog: ++ UN werfen Russland Folter an Zivilisten vor ++
UN-Experten beschuldigen Russland, in besetzten Gebieten ukrainische Zivilisten systematisch zu foltern. Mehrere russische Flughäfen haben wegen ukrainischer Drohnenangriffe in der Nacht den Betrieb eingeschränkt.

@nelson@tech.lgbt
2025-10-24 02:40:55

Alaska Airlines stopped flying airplanes today because of an "IT outage". This is the second time in three months they stopped being an airline because of some computer problem. They've never been great but this kind of failure is unacceptable.