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Comment Re:If it is 1/3 the power of the sun... (Score 3, Interesting) 63

Sun to electric power conversion is ~15-25% efficient.
Microwave power transmission is up to 50% efficient.

Satellite power provides power 24/7 and does not need any form of energy storage, and would be a full replacement for traditional base-load power generation (like hydro, nuclear and coal).
Solar power is limited to roughly 8 hours a day, and needs either energy storage or other base-load generation. Power storage is either inefficient or costly.

The only relevant question is if it is possible to make it cheap enough, without the pie-in-the-sky Skylon.
What would it cost with Falcon-9 or Falcon-Heavy as launch vehicle for the satellites?

Comment Re:Electric not the answer (Score 1) 212

New cars registered last year: 144 202
Zero emission cars: 18 094, of which 4 were hydrogen and 18 090 were EV.

100 * 18090/144202 = 12.54%
Source: http://www.ofvas.no/aktuelt-1/... (in Norwegian)

There's also a Wikipedia page in English with statistics for parts of 2014:

During the first quarter of 2014 all-electric car sales reached a record 14.5% market share of new car sales, and for the first eight months of 2014 the all-electric segment market share was 13.0%, and climbs to 14.2% when plug-in hybrids are accounted for.

Source: http://en.wikipedia.org/wiki/P...

EV sales the last quarter of 2014 dropped a bit, probably in part because almost everyone with a Tesla-order with delivery in that quarter changed their order to the 4WD 85D with delivery in 2015.

Comment Just make sure it makes less noise than her PC (Score 1) 720

Just make sure your gaming rig is less noisy than her gaming rig. And don't put either of them in the living room.

My system is practically noiseless. Silent water cooling and 140mm fans. No HDDs, just a stack of SSDs.

My wife's gaming rig is noisy as hell. Old i7 920 ("frying pan" early stepping) with a HD6970 and 24GB 1.65V ram, a couple of 2nd generation SSDs and a stack of HDDs. Doubles as space heater during the winter.

Comment Re:Cue slippery slope arguments now... (Score 1) 366

15 points is a huge difference. A person with an IQ of 85 will be severely disadvantaged and would have problems completing any higher education.
Past a certain point higher IQ does not directly translate to higher success rate (social, economical, health etc), but in the interval 70-130 it does.

Comment Re:Awesome (Score 1) 283

Where I live the rule of thumb is that you spend between 1/2 year and 1 year household income (before tax) on car(s) every 5-6 years.
Average household income for dual income households ( most are) is slightly above $160 000, which puts the Tesla D within the car spending budget of almost half the households over here.

I'm just pissed I didn't hold out another 2 months before ordering mine early in September.

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