For a high-altitude weather balloon, the cost of helium depends heavily on volume (m³) and whether you buy party-grade cylinders vs industrial gas. Here’s a realistic UK/Europe 2025–2026 picture: 💰…
There are quite a few liquid cooling / temperature-controlled systems on eBay and similar marketplaces, ranging from simple DIY Peltier units to proper compressor-based chillers. Below are the most relevant…
On a Raspberry Pi (running Raspberry Pi OS or most Linux distros), you can reboot from the terminal with: Alternatives Notes
Recently I was asked whether I would recommemd the Stellarium planetarium app on the phone. I know little about Stellarium app although many people tell me it is good. This…
Here’s a practical, no-nonsense way to use that 16 V / 83 F supercapacitor module as a clean power buffer for radio / SDR work. 🔧 Basic idea You want…
Andy, You are correct that it is mostly an emphasis to your description but the points, although subtle, are I think of important general applicable engineering description in the design…
To make a Microsoft PowerPoint slideshow run automatically, you need to set timings and configure the show settings. Here’s the straightforward way: 1. Set slide timings (automatic advance) 👉 Alternatively:…
Dedispersion is a signal-processing technique used in radio astronomy to correct for the effect of interstellar dispersion—the way radio waves get “smeared out” as they travel through space. 🌌 What…
Got it — you mean the next size up from the Yaesu G-5500DC antenna rotator. Short answer: there is no direct “next model up” that is the same type. Moving…
The Yaesu G-5500DC doesn’t have a single simple “load capacity” like a crane or mount — Yaesu specifies it using several related limits. The key figures are: ✅ Primary load…
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