Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror

Comment Re:The basic question is answered...but still... (Score 1) 467

1) Government funds your study and provides your grant
2) Government wants a particular result from your study
3) Government does not renew your grant when the study does not prove what they set out to prove

And...

1) Private industry funds your study and provides your grant
2) Private industry wants a particular result from your study
3) Private industry does not renew your grant when the study does not prove what they set out to prove
4) Private industry tries to censor any study that has results that embarrass private industry

Open Source

SourceForge Eliminates DevShare Program (sourceforge.net) 238

SourceForge has officially eliminated its DevShare program. The DevShare program delivered installer bundles as part of the download for participating projects. We want to restore our reputation as a trusted home for open source software, and this was a clear first step towards that. We are more interested in doing the right thing than making extra short-term profit. This is just the first step in a number of improvements we will outline in the coming weeks. SourceForge and Slashdot were acquired in late January by BIZX.

Comment Re:Huh? (Score 1) 61

3D printed objects aren't the strongest due to the way the layers are laminated together. I imagine the last place you'd want a weak join is on a 150+ foot long blade swishing through the air.

You betcha.

Especially since a spinning blade gets more efficient as it gets faster. Higher speed = lower torque for a given horsepower density, so a higher tip speed ratio (TSR) wastes less energy "twisting" the air downwind.

Efficient wind turbines run at a TSR of 6 or higher - which means that in windy conditions the tips are running at an appreciable fraction of the speed of sound.

If one of those puppies breaks off it's NOT the kind of baseball bat or boomerang you want coming toward you, whether flying or summersaulting along the ground. (Imagine a caber toss with giants and redwood logs.) Not to mention what the resulting unbalanced spinning does to the other blades and the pylon.

Comment Re:User error (Score 1) 328

Well, I'm also 6'7" and I certainly don't fit into the old beetle. I am still working to transition from my old W126 300SD to a D2 A8. Gets about the same mileage on the freeway, and I don't drive around town much. You might consider looking at Subarus though, I used to have a GC5 Impreza and I fit very well into that. Before that I had a S13 240SX Fastback, which had massive legroom but which was a little short on headroom.

Comment Re:Jeep? Not so much (Score 1) 328

There wasn't anything special about those older Jeeps that you mention. Yeah, they looked more rugged, but that was about it.

There was something special about older Jeeps. They were cheap to modify, and they had more flex. Leaf springs are heavy and have inferior ride, but they offer more suspension travel and they mounted them under the axles... so you could cheaply use a shackle flip kit to do a suspension lift. On the other hand, they typically didn't come with locking diffs. The modern vehicles use EBD to maintain traction while crawling at low speeds, which means they can actually traverse things that the older stock vehicles can't. On the gripping hand, who goes off-road with an old Jeep without getting at least one locker?

The problem now is just finding donors for modification, though. At this point it might actually be cheaper to buy a tube frame. There are a few tube buggy frames under 5k...

Comment Re:Jeep? Not so much (Score 1) 328

As a result, you can't get anything to play off-road in unless you spend an additional bucket of cash in the aftermarket. Shame, but that is how the market works.

Luckily there are absolute shitloads of trucks just lying around waiting to be hopped up, and available for little to no money. You can get OBS F-Body trucks literally all day... out here in California they're even close enough to "no rust" as makes no difference. How many do you want? You're going to rip out the powertrain anyway, right?

Comment Re:User error (Score 1) 328

Bullshit. The automatic can't read your mind, hence it's always trying to catch up with what you want. They are good for straight lines.

Bullshit. The automatics all support a manual mode now, whether it's implemented in your car or not. A very fast human driver can shift in maybe 250ms, average is maybe 500ms and in most vehicles closer to 1s. A mediocre automatic transmission shifts in 400ms (the good ones from the nineties will manage this) while a very good one will do it in 200ms. But about since the same time they went to five-speed, they also became dynamically controlled. While typically retaining a classic limp mode, such transmissions also dual-engage gears while shifting, making most shifts basically imperceptible. A driver can make a tiptronic shift while under power in a corner without upsetting the balance of the vehicle, something you can't do even by heel-toe shifting.

A good automatic transmission is better than even an expert human with any manual short of a dogbox. Even a SMG is faster than a dogbox. A DCT is an order of magnitude faster than a SMG. There is nothing faster than a DCT... which can be fully automated. The latest ones are even said to be fairly smooth when they do that.

Comment Re:User error (Score 1) 328

However, if you are doing highway driving, the manual wins, every time.

To some extent this ended with the ZF8 and it is well and truly over with the ZF9. They give the ZF9 four overdrives, the lowest one is 0.48:1. The automatic now kicks the manual's ass. It's also over with the new crop of CVTs; they don't manage the same kind of mileage as the ZF 9HP because they can't quite manage the same deep ratio, but they're still better than a normal automatic.

Slashdot Top Deals

10.0 times 0.1 is hardly ever 1.0.

Working...