Well, thank you!
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Well, thank you! đ
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Gli ultimi otto messaggi ricevuti dalla Federazione
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I have an AMA starting now on Reddit. https://www.reddit.com/r/SecurityCareerAdvice/comments/1otznp9/ama_ot_cybersecurity_jobs_training_ot_dfir_stories/
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Thanks to everyone who replied. I thought about this when I was at Costco earlier this week. There's a lot of different categories of products available, including packaged and fresh food, clothing, prescription and non-prescription drugs, and electronics. One thing I didn't see were a lot of home repair tools or supplies. I think for a while you could ignore small repair jobs, but eventually you're going to need to fix things. So, my response would be around six months.
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Time to Migrate by Tim Brey
Mastodon treasure @timbray just published what may be the best Mastodon pitch yet!
https://www.tbray.org/ongoing/When/202x/2025/11/03/Time-to-Migrate
"The simplest argument ¡ Have you noticed that social-media products, in the long term, canât seem to manage to stay fun and safe and useful? I have. But thereâs one huge exception... Iâm talking about email... Why does email stay reasonably healthy? Because nobody owns it... Mastodonâs like email that way. Plus it does all the...stuff that youâre used to."
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Challenge: finire di aggiornare velocemente Pignio prima che si faccia cosĂŹ tardi da finire per dormire pure stanotte solo 4 ore đť
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Il PC oggi sta di nuovo facendo i rumori infernali, ora siamo alla quinta volta stasera... Forse vuole dirmi di andare a dormire? Però ne dubito... credo che lui in primis voglia in realtĂ sopprimermi. đ¤§
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the new china is here
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What Do You Call an Ekranoplan With an Outboard Motor?
If thereâs one thing [rctestflight] likes, itâs⌠probably radio controlled test flights. If there are two things [rctestflights] likes, the second one is probably ground-effect vehicles, AKA Ekranoplans. Tired of having them flip over and crash, heâs trying an an innovative solution: stick a planing hull on it.
Ekranoplans have a stability problem because the center-of-pressure isnât static: as the wing gets closer to the ground, the high pressure cushion of air that creates the ground effect tends to put more lift rearwards. The net effect of that is to torque the vehicle nose-down, which is kind of a self-limiting problem at a fraction of a wingspanâs altitude. The opposite problem is more concerning: the higher the ekranoplan gets, the more it wants to nose up, and thereâs nothing to stop it. That leads to the vehicle flipping over.
In this video, [rctestflight] takes a few stabs at trying to solve the stability problemâ he starts with a flat planing hull on the nose, with the idea that the vehicle will be nose-heavy enough to ride serenely over the water. Water isnât actually flat, though, and the nose bumping over the waves wasnât able to do what he wanted. He then switches to a feeler that is to ride on-surface to adjust the pitch of the nose-mounted propellersâup if it pokes the water, down if it canâtâ to provide passive pitch stabilization. That does work at some airspeeds, but produces a predictable porpoising effect, even with an elastic band for damping. That design might show promise with more refinement, but if youâre using something to give altitude feedback, it might as well be lidar.
The next iteration of the design places a pair of hydro-screw propellers on the nose, for all the world like a pair of outboard motors. Weâre not even sure what to call the resulting vehicle, but âmore stableâ is unfortunately not it. It doesnât seem to fly any worse, mind you, but certainly not well enough to justify the complexity, especially once he goes down the rabbit hole of adding suspension to the motors.
Ultimately he ends up refining the planning hull into a V-shape, since a V-hull can cut the waves and give a smoother ride than a flat-bottomed boat. We canât help but agree with [rctestflight] that the standard configuration of a long hull and large horizontal stabilizer is likely the way to go, since the whole point of a ground-effect vehicle is to avoid the energy cost associated with skipping over waves. Still, itâs hard to deny that these prototypes are hacks, and we appreciate the brief lesson in aerodynamics he provides in the video.
Given some of the other projects heâs tackled, weâre kind of disappointed he didnât try a hydrofoil.
