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Comment: Re:It's not all true (Score 1) 386

Assuming that they radiate equally in all directions.

No, assuming a non-zero divergence, which is everything because even the most highly collimated laser beam experiences diffraction. Whether your radiation is best described as a sphere or a cone, you're subject to the inverse-square law.

Nevertheless good post, and indeed wireless power is possible -- but I think it will remain limited to either low power applications which are more a feature of the modern world than Tesla's, or very specific applications where high-power laser power transmission is feasible. Tesla's dream of every home powered wirelessly is probably not going to come to pass.

Comment: Re:Graphics cards (Score 1) 325

by Chris Burke (#40041853) Attached to: 'Inexact' Chips Save Power By Fudging the Math

Yeah, and CPU SIMD instruction sets include approximation instructions for inverse and inverse square root.

My question is whether they have controlled for where the error occurs. The nice thing about approximations is that you know what the error is. If you can have bit errors anywhere including the MSB then you're going to be limited to situations where you don't actually care about the answer in which case it's more energy efficient to just not do it for a savings of 100%. :P

I'm guessing that's part of why they only get 15% -- because they can only be sloppy in certain parts of the circuits.

Comment: Re:Seems so 1995... (Score 1) 246

The "Alaska" font is smaller than the "Canada" font however.

Yes it's the same font as used for every other state or province (or territory ala Puerto Rico). It is not an example of what the GP was talking about.

Svalbard is also a region

This is much more interesting. Svarlbard is part of the Kingdom of Norway. This made me wonder about Ireland, part of the UK, but also given the same font. China's provinces -- including the island of Hainan -- don't use that font, only Taiwan.

But still, it seems the separation isn't clear-cut and you can't infer Google's opinion nationhood in some edge-cases which I'm sure they consider a feature.

Comment: Re:Seems so 1995... (Score 1) 246

No, it's a "region". All the countries are "regions", but not all "regions" are necessarily countries.

Huh. So are there any "regions" which aren't "countries" according to people who don't have a vested political interest in them not being countries, or is this literally a "Let's make China happy" weasel?

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