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matthew's picture

What's Really Going On Inside A Dying Lithium Battery

Warning: Science ahead! Close your eyes and turn away, you've been warned!

Many radio-control enthusiasts experience disappointment with the cycle life of their Lithium-based batteries in electric aircraft. Often this is because they're not entirely sure what's going on inside the battery, and choose a capacity or voltage that's inappropriate for their application. Ultimately, this manifests itself in "swelling" or "ballooning" of a Lithium battery. This editorial attempts to explain what's actually going on when this happens.

Chemically, there can be three causes for the swelling of a LiPo battery, and one exacerbating condition that makes it worse across the board. These occur in hard-shell Lithium Ion batteries, too, but the hard shell can withstand several atmospheres of pressure before expanding.

matthew's picture

Old 666

My brother Jay posted a great story we watched on Sunday: Old 666. Excerpt:

Zeamer and his misfit crew seized the plane, and worked to restore it and make it airworthy again. Not just restore it – they decided to customize it. They added nearly 50% more guns to the bird, including a forward-firing machinegun so Zeamer could also shoot, like a fighter pilot. They replaced the .30 caliber machine guns with bigger .50 caliber guns – or, in some cases, twin .50 caliber guns. When they were done, their aircraft – number 41-2666 (or 12666, depending on the account) was the most heavily armed bomber in the entire Pacific theater of World War II.

matthew's picture

Vuvuzelas considered harmful to carpets

Be careful about blowing your Vuvuzela at your dog in the house.

matthew's picture

The Tramadol Craze

I've recently begun doing some research into how I can improve traffic to my web site. Yeah, I know, long-term readers would say “Uh, dude, start writing again!” I hear you, and I'm working on it, starting today here & now.

One of the sites discussing driving traffic to blogs mentioned one of the basics is being aware of “hot keywords”, where advertisers pay top dollar for click-through ads. Now, a lot of these, I feel like I'd have to sell my soul to capitalize on them. I'm talking about the ads for cheap viagra & cialis, payday loans, debt consolidation, and Nutrisystem eating plans. Well, OK, Nutrisystem is just a diet plan under the hood – and a well-advertised and above-board one at that – so I guess I'd be OK about that, but the rest seem to be largely the province of people who constantly try to spam my site with comments to try to boost their ad revenue, offshore pharmacy, or extortionate loan scheme.

matthew's picture

Changed things a little bit...

Because I've started writing my soliloquies again, I've changed permissions again for new users. Anonymous users are allowed to post again, as are recently-authenticated users, but all posts are moderated unless you're part of the "Contributor", "Barnsons", or "Moderator" groups.

matthew's picture

The Lawsuit Against Health Care

Found this article in my local online rag this morning.
TALLAHASSEE, Fla. (AP) -- Attorneys general from 13 states -- including Utah Attorney General Mark Shurtleff -- sued the federal government Tuesday, claiming the landmark health care overhaul is unconstitutional just seven minutes after President Barack Obama signed it into law.
matthew's picture

The Tea Party: Yuck!

Until today, I have largely ignored the Tea Party. Decided to read some of their own literature today. After careful study, I've come to the conclusion that it's a mostly-male thinly-veiled white-supremacist organization hell-bent on eliminating religious freedom from the USA. Apparently some 11% of the USA sympathizes with them.

Timpane's picture

The Sh*t you don't give

So, I rarely post anything I heard at Church, but this is worth quoting.

True story:
A pastor went to a conference in the bible belt and when it was his turn to speak, he said: "40,000 people died of starvation today and you people don't give a shit". The conference drew in its collective breath and sat there slackjawed. He said: "I'll say it again, 40,000 people died of starvation today and you people don't give a shit.". There was rumbling in the crowd, and he looked at them, and pointed out what I think is the difference between happy, pretty, right-wing, Fox-News watching "Christianity" and the kind of Christianity I want to believe in.

He said, (and I paraphrase): "Which part of that sentence really bothered you?"

matthew's picture

Drupal update 6.15

Updated Drupal today to version 6.15 from 5.X. No issues at all, it went perfectly. Not entirely sure I want to re-enable all the old modules. But I am sure I want to start writing in this dang thing again. It's been months since I've posted due to some personal reasons. Yet the compulsion to write is hitting me again!

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