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Comment E = (T2-T1) / T1 (Score 3, Informative) 174

E = (T2-T1) / T1

Everyone with an engineering degree knows this. Trying to extract much energy from low-grade heat at the output end of an engine is inefficient. This was figured out a long time ago. Here it is in The Manual of the Steam Engine. It's possible to increase steam engine efficiency by compounding, where the exhaust from each cylinder feeds a larger, lower pressure cylinder. This is cost-effective up to about 3 cylinders ("triple expansion"). Engines up to quintuple-expansion have been built, but the additional power from the last two cylinders in the chain isn't worth the trouble.

Comment Re:When will they gentrify the Tenderloin? (Score 1) 359

In 2005, this appeared in SF Weekly, about the gentrification of the Polk St. area of the Tenderloin:

Gay Shame calls the Lower Polk Neighbors Association a "brutal gentrification squad" of wealthy business owners, slumlords and bureaucrats.

"They are trying to transform Polk Street from the city's last remaining gathering place for marginalized queers and street culture into a hip destination for wealthy suburbanites," Mary said. "We want a safe place for marginalized people, and Polk Street has historically been that space.

"The neighborhood may soon be known more for green-apple mojitos and stretch Hummers than trannies and tweakers (methamphetamine users)."

That was back in 2005. Gentrification won.

User Journal

Journal Journal: Mars, Ho! Chapter Fifteen

Cargo
I started the long walk back to the pilot room wishing again for a bicycle or something.
A robot wheeled past. Hell, I should just flag down a robot. But, of course there was a reason for not having transportation; I remembered the climb up the boat when the whores locked me out and how tiring it was. A body needs exercise and the most I was going to get on a boat with two-thirds gravity was walking.

Comment Re:When will they gentrify the Tenderloin? (Score 3, Interesting) 359

It's happening. First, take a look at a map of the Tenderloin, from "Areas to Avoid, San Francisco." Twitter HQ is in that area, between 9th and 10th on Market, and the long-standing "mid-Market area" around there is rapidly being rebuilt. In fact, just about everything south of McAlliister has been gentrified, except for parts of 6th St and a small section around 7th and the north side of Market. Rebuilding is underway along the Van Ness corridor too, and has more or less chopped a block off the Tenderloin on the west side. That's the old "Polk Gulch" area, once a gay rent-boy hangout.

So the SF Tenderloin is about half the size it was a few years ago. Progress continues.

Comment It's a training program, not production (Score 1) 80

This is a training program, not a production process. They have a few people doing forging by hand, but not to make production parts. See the original article in the Japan Times. Toyota's process of continuous improvement of production requires that people working on assembly lines understand the process well enough to suggest improvements. They recognize that they've dumbed down the workforce too much.

Ford Motor funded the building of the Detroit TechShop for similar reasons. They need more people who have a good sense of how stuff is made. Who in the US gets a degree in production engineering any more?

Comment Re:there are also a shitload more f2p games that d (Score 1) 245

That did what? Not suck? Can you give us a list of 10 F2P games that did not suck and not include DOTA2?

And how much lower is the bar for F2P and why? Clearly, the teams making these games are trying to make money, and if they believe they can make money, apparently there is some value to having people play these games?

So what exactly is "free" as in "free to play"? Ain't nothing free.

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