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Comment Re:store and release energy? (Score 1) 315

Conservation of energy doesn't prevent this from working. After all, with a turbine powering the wheels, a cart can travel faster than windspeed into the wind anyway.

In this case, a plain sailcart (with no propellor) reduces the velocity of the mass of air that is pushing it by a bit --> reduces the wind's kinetic energy. This enables the cart to move forward (the energy is transferred to the cart) until it's almost at windspeed, where it has a negligible effect on the velocity of the wind.

If a fan is then added at windspeed, it starts to push air back, reducing the air's kinetic energy again. This energy has to go somewhere, either as heat or the kinetic energy of the cart. Since most propulsion systems are not 0% efficient, I'd bet on the cart accelerating (to a speed faster than the wind).

So you see we're not getting free energy from anywhere. Kinetic energy is proportional to the mass involved, and there's a very large supply of moving air available.

Comment If you speak overmuch of the Way (Score 1) 395

you will not attain it?

The primary thing when you take a sword in your hands is your intention to cut the enemy, whatever the means. Whenever you parry, hit, spring, strike or touch the enemy's cutting sword, you must cut the enemy in the same movement. It is essential to attain this. If you think only of hitting, springing, striking or touching the enemy, you will not be able actually to cut him.

— Miyamoto Musashi (The Book of Five Rings)

Comment Re:Lethal Weapon VII (Score 1) 448

If the point was that a pile of DVDs ought to have a lesser total sentence than robbing a store at knifepoint, then I don't see how it matters that you can break the sentence into 20 "counts". The point stands that 60 years is too much. 20 three year counts is just explaining how the situation came about.

Comment Re:Lethal Weapon VII (Score 1) 448

"Paying for it or trading for it"

Did you know you can download things on the internet for free? Apparently it costs music producers a trillion dollars a year in lost sales. Maybe if we got everyone to pirate every child porn video on the internet at once, we could put these people out of business!

Comment Oh god (Score 3, Funny) 271

Here we go again, implying that AIs won't work until they have feelings.

You might fairly refute the "emotionless reason" of Mr Spock, but I don't think that means you need emotions in order to think. It just means you don't have to lack emotions. There's a difference. Emotions give us (humans) goals. A machine's goals can be programmed in (by humans, who have goals). A machine doesn't have to "feel sad" for the suffering of people to take action to prevent said suffering - it just needs a goal system that says "suffering: bad". 'S why we call them machines.

Comment Re:authoritative, but incomprehensible (Score 1) 355

allows some else to steal my stuff

What? It's just a wikipedia article. It really matters that much to you? And how does one "steal" stuff from a public web site anyway? Look, the point of wikipeda isn't to get your own awesome article published so people can see what a good writer you are (even if it is awesome). The point is to enable people to educate themselves, to disseminate knowledge. If people take what you've written and use it somewhere else then good, mission accomplished. I think that's really the most useful way to feel about this. Even if people do take what you've written, pass it off as their own, and sell it in books, that's not actually preventing our goal (people being able to read it) from being reached, so I wouldn't worry about it.

As for the issue of doofuses putting false stuff in articles.. well, that's a problem and I have no answer to that. I just want to talk about the issue of "ownership".

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