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Comment Amazon's big screw-up - missed kickstarter.com (Score 1) 405

Amazon big screw-up with the Kindle was completely missing the big takeoff of crowdfinding sites like kickstarter.com.

http://www.pbs.org/mediashift/...

"Authors are choosing to crowdfund their work, and there are now options for them on which platform to use. The question is: Kickstarter, Indiegogo or Pubslush? To explore the pros and cons of those platforms, I interviewed a successful author from each of them to find out why they chose it and how they succeeded....

Amazon Kindle & DRM strategy needed to end up with authors completely dependent on the Amazon for their income. Amazon either missed the birth or takeoff of crowdfunding sites for as a new important revenue source for creative occupations.

Comment Re:Putting people in an autonomous car (Score 1) 301

Well, if the cars only went on special roads, you'd be right, and just like the elevator, the people who are responsible for maintaining the roads are responsible for any accidents. But normal elevators don't pop off their rails and walk you to some arbitrary location on your chosen floor. My point is that autonomous cars should be considered like an airplane with a super-duper autopilot. Sure, the pilot just pushes a button and the plane does its thing, but the pilot is still responsible for a visual inspection and preflight check every single time.

Comment Re:Putting people in an autonomous car (Score 2) 301

Well, yes and no. If you're going to let autonomous cars drive in the same environments where you let people drive cars right now, as opposed to separated lanes on a few specially designed and maintained roads, the human ultimately should be responsible. Like if the car crashes because you didn't clean the bird-shit off the camera, or you didn't notice that the radar antenna in the front got dinged by a shopping cart and is about to fall off, it is your fault when it falls off and the car crashes.

Comment Re:diesel-electric? (Score 1) 160

Jet engines themselves are a step back from high bypass turbofans and turboprops. One of the rules of thumb for aircraft engines is that a bigger fan spinning slower is more effecient than a smaller fan spinning way faster. But the the prospect of having basically all fan driven electrically without an obstruction from compressor, fuel handling, etc may swing the balance in favor of diesel electric (ie one turboshaft driving a generator running the fans) in some cases.

Comment Re:Flight time 1 hour (Score 5, Interesting) 160

Which is why battery-powered planes are stupid. But not necessarily electric propulsion. If you can actually fly an electric engine, you can get experience and improve on it, so that if and when you come up with a better way of providing electrical power (electrochemical fuel cells, fission reactor, Mr. Fusion, very long tether, microwave death ray), you will be able to mate it to a mature technology. I say kudos!

Comment feed myself w/ knowledge & history of steelmak (Score 1) 737

...When Bessemer went to push them into the ladle, he found that they were steel shells: the hot air alone had converted the outsides of the iron pieces to steel. This crucial discovery led him to completely redesign his furnace so that it would force high-pressure air through the molten iron using special air pumps. Intuitively this would seem to be folly because it would cool the iron. Instead, the oxygen in the forced air ignited silicon and carbon impurities in the iron, starting a positive feedback loop. As the iron became hotter, more impurities burned off, making the iron even hotter and burning off more impurities, producing a batch of hotter, purer, molten iron, which converts to steel more easily....He realised that the technical problem was due to impurities in the iron and concluded that the solution lay in knowing when to turn off the flow of air in his process so that the impurities were burned off but just the right amount of carbon remained. However, despite spending tens of thousands of pounds on experiments, he could not find the answer.[7] Certain grades of steel are sensitive to the 78% nitrogen which was part of the air blast passing through the steel.

I don't know precise formulas for 19th century steelmaking, but I know right where to look in a library. There's was a PhD in the family for metallurgical engineering. Now materials science. I'd feed myself, won't freeze to death.

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