Tootfinder

I made a #HamRadio antenna that I really like, and wanted to share the design and process so others can do it too. It's a carefully-tuned linked dipole that is light and has served me well for #POTA activations. It's now in its second iteration and so far I'm very happy with it.
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An older video essay from the great #PatrickHWillems about trains in movies. Why is it such an essential vehicle in so many movies since the brothers Lumière? It restricts space and moves the plot forwards - and both things are great for propelling the plot and forcing the scriptwriters to get creative. And have you noticed that the conductor is often invisible? It's the train who is …

Putting this in the context of decades of US imperialism is both appropriate and necessary. Look at this map: even just in the Americas, this US-instigated coup of a foreign country has a long and miserable series of precedents.
However…
https://mastodon.ie/@2legged/115830727173641772

Today's #HamRadio #POTA (Parks On The Air) adventure. Absolutely gorgeous, couldn't-be-better fall weather on a Saturday, so that it was a little surprising that we found parking space and that all the picnic tables were empty. Used my spiderbeam push-up mast to hold my inverted-v link…

Non-Gravitational Acceleration in 3I ATLAS: Constraints on Exotic Volatile Outgassing in Interstellar Comets
Florian Neukart
https://arxiv.org/abs/2511.07450 https://arxiv.org/pdf/2511.07450 https://arxiv.org/html/2511.07450
arXiv:2511.07450v1 Announce Type: new
Abstract: The interstellar comet 3I/ATLAS exhibited a measurable nongravitational acceleration similar in form to that of 1I/'Oumuamua but of smaller magnitude. Using thermophysical and Monte Carlo models, we show that this acceleration can be fully explained by anisotropic outgassing of conventional volatiles, primarily CO and CO2, under realistic surface and rotational conditions. The model includes diurnal and obliquity-averaged energy balance, empirical vapor-pressure relations, and collimated jet emission from localized active regions. Mixed CO-CO2 compositions reproduce both the magnitude and direction of the observed acceleration with physically plausible active fractions below one percent for nucleus radii between 0.5 and 3 km. Less volatile species such as NH3 and CH4 underproduce thrust at equilibrium temperatures near 1 AU. These results eliminate the need for nonphysical or exotic explanations and define thermophysical limits for natural acceleration mechanisms in interstellar comets.
toXiv_bot_toot

We had a surprise opportunity to go to the beach this weekend, near Southport NC. I have the weird preference to sling my hammock under the house, between the clotheslines, instead of sleeping indoors. Half camping? I use a big rubbermaid box as my "suitcase" and put my shoes on it overnight... It was cold at night, but an underquilt and reflecting bubble insulation in the hammock, with an inflatable mattress on top of my down sleeping bag, kept me cozy.
My wife and I went to …

🔊 #NowPlaying on #BBCRadio3:
#OperaOn3
- Janacek's The Makropulos Case
Ausrine Stundyte sings the title role in a new production from the Royal Opera House, conducted by Jakub Hrůša.
Relisten now 👇
https://www.bbc.co.uk/programmes/m002mkzl

I decided to try to participate just a little in this weekend's #HamRadio ARRL sweepstakes CW contest to stretch my tyro skills. In a busy contest, I decided to set up not1mm and configure my radio for sending from a contest logger to try to reduce wasting time with nervous keying failures. Took three really broken exchanges (the first ones hand-sent) that made me feel bad for the other…

Yea I can’t imagine why anyone thought this dipshit was defending rape…I mean aside from the over half a dozen posts where he defended rape as “not immoral”, literally said “No. In fact, the word "rape"…didn't even exist until the 1800s.” and arguing that being “owned”* wasn’t “horrific”
Complete mystery why people went after him, must be some weird BlueSky thing. 😂
JFC