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Comment: Lead Acid (Score 4, Interesting) 298

by Bob9113 (#49608367) Attached to: Tesla's Household Battery: Costs, Prices, and Tradeoffs

Lead acid batteries are still about half the price per kWh (look near the bottom, at the 48v x 400Ah bank), and come with the same 10 year warranty. Cars care about weight, houses don't.

The new thing here isn't battery storage of solar power, it's lithium-ion batteries instead of lead acid. The price performance for lithium-ion can't compete with lead acid yet, when weight isn't a factor.

Comment: Re:This again? (Score 1) 471

by Bruce Perens (#49598949) Attached to: New Test Supports NASA's Controversial EM Drive

OK, I will try to restate in my baby talk since I don't remember this correctly.

Given that you are accelerating, the appearance to you is that you are doing so linearly, and time dilation is happening to you. It could appear to you that you reach your destination in a very short time, much shorter than light would allow. To the outside observer, however, time passes at a different rate and you never achieve light speed.

Comment: Where we need to get to call this real (Score 1) 471

by Bruce Perens (#49596461) Attached to: New Test Supports NASA's Controversial EM Drive

Before we call this real, we need to put one on some object in orbit, leave it in continuous operation, and use it to raise the orbit by a measurable amount large enough that there would not be argument regarding where it came from. The Space Station would be just fine. It has power for experiments that is probably sufficient and it has a continuing problem of needing to raise its orbit.

And believe me, if this raises the orbit of the Space Station they aren't going to want to disconnect it after the experiment. We spend a tremendous amount of money to get additional Delta-V to that thing, and it comes down if we don't.

+ - UMG v Grooveshark settled, no money judgment against individuals

Submitted by NewYorkCountryLawyer
NewYorkCountryLawyer writes: UMG's case against Grooveshark, which was scheduled to go to trial Monday, has been settled. Under the terms of the settlement (PDF), (a) a $50 million judgment is being entered against Grooveshark, (b) the company is shutting down operations, and (c) no money judgment at all is being entered against the individual defendants.

Comment: Re:The problem isn't the FBI ... (Score 5, Interesting) 172

by Bob9113 (#49590377) Attached to: FBI Slammed On Capitol Hill For "Stupid" Ideas About Encryption

Whistleblowers have been coming forward, the people have been loudly criticizing it, we elected the Presidential candidate who was most opposed to it in both of the last two elections (the second guy was distinctly more of a "lesser of two evils" than the first), and we've been taking them to court.

So, to recap, that's soap box, ballot box, and jury box that we've been using. To claim that we're letting them get away with it is to betray your ignorance of the facts. Short of revolution, we have done everything we can. This is the oligarchy ignoring the law and the will of the people.

Comment: Re: Elon Musk (Score 1) 108

by Bruce Perens (#49582987) Attached to: Russian Cargo Spacehip Declared Lost

Obviously I am missing something, then. Please fill me in on your better information sources. Email to bruce at perens dot com if you don't want to put them on Slashdot.

It's time to start planning another trip to Lompoc. The Motel 6 was sort of yukky last time. Maybe I'll try something else. There was an official visitor observation site that I found and got into last time, but that was for the Delta, and it was on Pad 4 if I remember correctly. This one is all the way on the other side of the base on Pad 7 or 8, isn't it? There are some farm roads that might be good observation sites if they are open.

Comment: Re:Well... (Score 1) 108

by Bruce Perens (#49582029) Attached to: Russian Cargo Spacehip Declared Lost

I am not confident that the world will remain a hospitable place for life until we are ready by your standard.

Getting the resources and people there is very close to being within our technical capability. The task ourselves, if we perform it, will take care of the remaining gaps.

Creating a self-sustaining colony outside of the Earth's environment is going to need a lot of work, but it is not work that can ever be achieved on this earth. We have to actually put people in space to achieve this. Our best experience so far is with submarines. Academic research has so far yielded only farcial frauds like Biosphere II.

Comment: Re:Again? (Score 1) 141

by Bruce Perens (#49581731) Attached to: Ham Radio Fills Communication Gaps In Nepal Rescue Effort

Technically, making transceivers work when there are 30 of them in vehicles next to each other can get difficult. People wonder why you can buy a dual-band walkie talkie for $60 but the one in the police car costs much more. If it's well engineered, the one in the police car has some RF plumbing that isn't in the $60 walkie talkie.

How can you do 'New Math' problems with an 'Old Math' mind? -- Charles Schulz

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