21 Wrenches: Snap On, SK Tools, MAC Tools, FACOM, Sunex, Gedore, Proto, Wright Tools, Matco, GearWrench, Williams, Klein Tools, Kobalt, Crescent, Tekton, Craftsman, Performance Tool, GearWrench 6 point and 12 point, Pittsburgh and a vintage S K wrench. The box end of the combination wrenches are compared for performance on a rusty fastener with limited contact area and on ½ inch low and high carbon steel with full box end contact.. The open end of the wrench is compared for performance on a low carbon steel fastener as well as on high carbon steel.

• Slipping torque on rusty bolt head: https://youtu.be/LtrgSOnGoCI?t=398
  ** Snap On, Mac Tools, Husky (USA, Taiwan)
• Open end slip torque: https://youtu.be/LtrgSOnGoCI?t=512
  ** Mac Tools, Snap On... (USA, Taiwan)

As a minimalist, I can easily fit everything I need into one carry-on bag. Here’s how I do it.

For decades, the general aviation industry has struggled with finding a replacement for leaded avgas without success. The biggest driver of this failure is that there’s no reason to do so because the industry has been given an exemption to continue using lead. In this two-part series, AVweb’s Paul Bertorelli explains how industry inertia and bureaucratic foot dragging killed efforts to eliminate lead from aviation fuel. See Part 2 here.

The batteries tested include the Duracell, Energizer, Amazon Basics, Harbor Freight Thunderbolt, Duracell Quantum, Dollar Store, Rayovac, Eveready, and Energizer Lithium.

Energizer Lithium = 3300mAH @ 300mA
Energizer = 1800mAH @ 300mA

mAH per penny = Amazon Basics 1st, Energizer, Rayovac & Eveready Silver 2nd

Software containers are taking modern business and broadcast infrastructure to the next level. Register for upcoming industry-leading learning sessions or view past sessions on-demand. Designed to educate and empower broadcast engineers, Container University is your hub to learn about this proven reliable technology and hear how it’s exactly right for broadcast operations.

Young, skilled workers can be free, financially and intellectually, in a way that indebted and indoctrinated former college students aren’t.

Invasive species can damage the ecosystems they wind up in. But in parts of the world, endangered predators make hearty meals out of them.

I made this monstrosity and it's mostly useless.

I have a few boxes of old optical media that I've been wanting to transfer to my NAS for years. I've dreaded the labor it takes to transfer so many disks so I had an idea to make a big stack of super cheap upcycled CD/DVD/BR drives connected to a 16x powered USB3.0 hub. My naive theory was that parallelizing this task would make it easier.

Boy I was wrong! It turns out that it does not reduce the labor involved, quite the opposite actually. I have no idea which drive is which and disk reading fails frequently due to disk damage. I dunno maybe some drives are busted too. It's pure chaos. Moreover, these drives are pretty fast when the ripping process works I don't have the time to use more 5-6 drives simultaneously. I guess I was expecting it to take much much longer.

So I don't know what to do with this contraption now.

Edit: yes, that is duct tape.

10 brands of rechargeable batteries tested for nearly a year. Additional set of rechargeable batteries tested for shelf life (battery self-discharge) after nearly a year. Initial voltage, internal resistance, and milliamp hour capacity tested. Brands: Panasonic Eneloop, Amazon Basics Silver and Black, EBL, Rayovac, PowerEx, Harbor Freight Thunderbolt, IKEA LADDA, Duracell, and Energizer.

mAh after 300 charge/discharge cycles:

• IKEA Ladda 2450 = 2017 mAh
• Duracell 2450 = 2007 mAh
• Silver Amazon Basics 2400 = 1864 mAh
• Black Amazon Basics 1900 = 1526 mAh
• Eneloop 1900 = 1400 mAh

Internal Resistance:

• IKEA Ladda = 70u Ohms
• Duracall = 71
• Eneloop = 78

IKEA Ladda: https://amzn.to/3j43iz6

Charger/Tester: Powerex MH-C9000
Testing internal resistance: Opus BT-C3400 Charger

The calculations show that a 100 percent renewable electricity grid is affordable. At current costs, it’s slightly more than 8 cents per kilowatt-hour. The results also show that achieving 100 percent renewable energy using battery storage is significantly more expensive than using power-to-gas technology.

One of my friends participated in a nuclear air burst test in Nevada. He was flying an instrumented T-33 jet at about 40,000 feet, some miles away. He wrote: “I was flying the plane … I had put a patch over my left eye and was to be looking down, with my head down, into the cockpit. I can remember that I was holding my breath as I heard 5, 4, 3, 2, and 1! Then, everything went white. I mean it was so bright that you could not see the floor of the plane. Then a very odd thing happened, I could actually see through the floor of the cockpit and see the ground below us! Yes, I could see the ground THROUGH the floor of the plane. I could see a bright light even in the eye over which I had put the patch. I find it hard to describe the brightness of the bomb blast. It was not like anything I had ever seen. It was much like how I had envisioned the brightness one would experience if in the presence of God.” //

He told me that during debriefing he reported being able to see through the floor of the airplane. They told him that several other people had reported the same phenomena.’

Gordon concludes;

‘I think this may be related to the “Livermore Light” that has been reported — but only in a few cases, because not many people have been looking anywhere near the fireball. In the book, “You must be joking, Mr. Fineman”, he was at a nuclear test in the Pacific. He had misplaced his dark glasses, so he just looked away from the blast – at all the other people who were wearing the very dark glasses. He said he could see them as skeletons, with the bones showing. I think there is a lot more to the Livermore Light than we know now….’