Please create an account to participate in the Slashdot moderation system

 



Forgot your password?
typodupeerror
×

Comment Re:Black holes are real, we observe them all the t (Score 1) 356

No, the science isn't settled.

http://www.worldcat.org/title/...

But the metric being wrong means that black holes fail to satisfy conservation of energy. Assume that conservation of energy is satisfied and fix the metric -- you'll find that a cross term was dropped -- and it all works out.

Comment Re: This can only work a little bit... (Score 1) 249

Well, the mathematically sound system would be to pay real wages for real work, so that you couldn't hire shills at a dime-a-dozen. Not only because they had real pay, but also because they had more self respect than that. But that runs contrary to the American ideal (which is More for the Powerful, and the Powerless can dream of that which will never, trust me, never be). Which means that in an Amerika-run world (or EU... trust me, EU is the same only worse), it won't happen.

Comment Re: Mechanical stresses ... (Score 1) 198

windmill power goes something like the 4th power of the blade speed. As a result, your maximumepower is harvested at the windmill blade tips. To increase the efficiency, you want maximum possible tip speed, but wear is a function of shaft speed. so you want high tip speed, low shaft speed. Therefore you need a large area.

Or lets put it in terms of the disk plane. Harvestable wind is a function of the area of the intersected disk. If you double the radius, you quadruple the harvestable wind. Actually, you do better than that because you reach higher (with a higher wind speed), and farther from the tower (which slows the wind). So again, you want a large radius blade.And yes, long blades under extreme torsional and bending moments, at high speed IS a recipe for blade failure.

Comment Re: sorry (Score 1) 198

I wonder: alternating neodynium magnets and ferrous enhanced coils, with air gaps between. As the wave comes through, and changes the interveningcore material (Air/salt-water), I'd expect a current in the coils.

probably not practical.

Option 2: porcelain and plastic rockers, with magnetics inside.

Option 3: a float, a unidirectional clutch (like a bike), a drive belt, and a shaft to an unexposed generator.

I think there have been some good wave generators out there (IIRC, Scotland comes to mind). I'm inclined to believe it is the power transmission / distribution / production companies.

For that, I think the answer is to target specific industries, and set up near them. Provide your own power lines. For example, use your power to produce fresh water and brine; dry the brine to produce sea salt, and sell the water to water-rights states.

Comment Re: Wave power can work (Score 1) 198

Which regresses to the point that very few markets are actually free; most are very specific about who the priveleged are that can benefit. Fishing fleets, taxicab owners, rocket sales, X-prize contest (anyone could compete, the unfavored had to compete without fuel) also grocery store workers, teachers, medicine, and so on.

Don't forget that you don't have the right to trade your labor across 'free trade' borders; that right belongs to companies that you must pay for the privelege of having your products and services be traded.

And no, even with non-free markets, it feels lousy to be the slave who is sold.

oh, did I mention that as billionaires are unloading stocks, AND volume is at a low, company buybacks are at an all-time high?

And no, even with non-free markets, it feels terrible to be the slave who is sold.

Slashdot Top Deals

Scientists will study your brain to learn more about your distant cousin, Man.

Working...