@ghostnshell_ retweeted
Dipole Antenna Linear Arrays:
A sinusoidally-excited dipole antenna radiates equally in all directions perpendicular to its axis. The xz view is the "side view" which shows the length of the antenna, and the xy view is the "top view" which looks down along the antenna axis.
@ghostnshell_ retweeted
Thank you for the feedback. The antenna calculator now includes several improvements, new antenna types, and balun designs for shortwave antennas, complete with construction instructions.
antennenrechner.boscolab.de
#hamradio #amateurfunk
@ghostnshell_ retweeted
2026年10月17日午前4時ごろ、オリオン座流星群と思われる明るい火球が、オリオン座の隣を流れました。流星痕も残っており、別の流れ星が同じ位置を流れました。
SONY α7SII
SONY FE50mm F1.4 GM
@ghostnshell_ retweeted
Distance doesn't just dilute; it scatters power across the geometry of space.
As distance r doubles, intensity drops by 1 / r² because a sphere's surface area expands quadratically.
This law governs everything from gravity to light, revealing how math shapes physical reality.
@ghostnshell_ retweeted
Strata's file operations just got a major efficiency upgrade. Moves, copies and renames are now faster and smarter across network shares, USB sticks, NTFS drives and more, with Strata adapting to each filesystem to do the least work possible.
Much faster on slow drives. In our tests, copying 2,000 small files to a FAT USB stick took 26s instead of 208s, and an sshfs share took 2–12s instead of ~100s.
Far less wear on USB drives. A 300-file move to an exFAT or NTFS stick went from ~300 device flushes to just 2.
Parallel moves. Moving lots of files to another disk now runs up to 8 at a time.
Tested across 14 filesystems: ext4, btrfs, XFS, NFS, SMB, sshfs, FAT, exFAT, NTFS and more.
Over 400 commits with more to come in the next releases to keep improving.
Get Strata to try it out on Omarchy now: github.com/lgse/strata
@ghostnshell_ retweeted
Why is the empty set a subset of every set, including itself?
These symbols form the alphabet of precise thought. ∈ means belongs, ⊂ proper subset, ∅ the null set, ∀ for all. Together they describe collections and logical links.
In databases, sets power queries. In machine learning, they define feature spaces and classes. Every algorithm relies on these foundations.
The language that lets computers reason is written in sets.
Which symbol here do you use most in your work?
@ghostnshell_ retweeted
A few workflow tips if you're using Gemini 4 Argon in Antigravity CLI:
1. Right-size reasoning effort (/effort)
Argon thinks deeply—which is great for architecture & gnarly bugs, but overkill for mechanical edits. Keep it on medium by default, bump to high when planning/debugging, and drop to low for quick refactors.
2. One-shot model consults (/model )
You don't need to stay on your heaviest model all session. Run a single prompt on Argon to diagnose a tricky bug or review a design, then automatically drop back to your faster default model.
3. Delegate to subagents & follow up with @
Offload repo exploration or test writing to subagents (coder / tester / reviewer) so your main Argon thread stays focused—type @ to message a subagent directly, or press Ctrl+K when a subagent surfaces a question (new in v1.3.6).
4. Side questions without polluting context (/btw)
Need a quick syntax check mid-task? /btw answers in a side overlay without adding a single token to your main trajectory.
5. Inspect changes in-terminal (/diff)
v1.3.5–1.3.6 adds a file tree, change stats, commit-message copy, and a highlighted commit tree view right in /diff.
@ghostnshell_ retweeted
A CEITEC sempre demonstrou a competência técnica de sua equipe, entregando todos os projetos dentro do prazo, com qualidade e a custos competitivos.
O que falta é entender que os semicondutores são uma questão de Estado, e não de governos.
O Brasil precisa parar de desperdiçar sua própria capacidade tecnológica!
#Tecnologia
#Soberania
#Semicondutores
@ghostnshell_ retweeted
Open CAD Studio supports some dynamic block functionality, even though you can not create dynamic blocks in it.
#OpenCADStudio is a free, open-source DWG authoring tool developed under the OpenAEC Foundation umbrella. Check it out at: opencadstudio.com/
#SPBProduction
@ghostnshell_ retweeted
Pele is a fast, beautiful, open source renderer for Mermaid diagrams we created for the next version of Obsidian.
You can already try it in the Pele playground and integrate it into your own apps.
This is Pele, my new rendering library for diagrams and charts, compatible with the latest Mermaid syntax.
- 100-500× faster than mermaid.js
- 6× smaller bundle
- No dependencies
- Easy to theme
- Responsive to device width
In pursuit of making Obsidian insanely fast and cohesively designed, I always found the Mermaid library to be too big, too slow, and too hard to theme. Pele will be the new renderer in the next version of Obsidian, but you can start using it now.
Pele [ˈpɛlɛ] is named after the goddess of volcanoes and fire. It's open source under the MIT license. Try the playground!
