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Comment: Exciting, but still a dream (Score 1) 157

by olau (#43694263) Attached to: Realtime GPU Audio

The difficulty in synthesizing sound is getting the models right. You can't simulate each atom so you need a simplifying model that allows you to reduce the work. And that model has to be accurate in the areas where it matters.

While moving stuff to a GPU gives more computing power (but in a more constrained fashion than a CPU) and certainly helps, the models aren't there yet.

The people researching physical modelling continue to make progress, but I think that if you put state of the art in a game, you'd perhaps have more lively sounds, but they'd probably sound worse than sampled sounds.

Comment: Re:Not that surprising (Score 1) 196

by olau (#43389785) Attached to: Python Family Gets a Triplet Of Updates

I disagree. Python 3 uptake has been really slow. The result is that a lot of the good stuff in the Python 3.x series isn't in wide-spread use yet, and if you're writing reusable library code, you can't really assume the majority of your users will have access to it yet.

Guido should have said: we'll break these things we have to break, and for the rest add shim layers with deprecation warnings instead of just opening the gates. That would probably have seen much faster adoption rates.

The gradual approach has worked pretty well for the 2.x series - if you use something deprecated, you get a bunch of really visible warnings you can then fix as you go along. I see no upsides in turning these warnings into hard errors, especially not when some of them happen in library code out of your immediate control.

Comment: Re:Waste of computer power (Score 1) 135

by olau (#43279589) Attached to: World's Most Powerful Private Supercomputer Will Hunt Oil and Gas

Actually, you laugh, but Vestas, the largest wind turbine manufacturer in the world, bought a supercomputer two years ago.

They use it to run simulations of wind conditions back in time. In some sense terrain-aware interpolations of existing measurements.

The thing is that when you're trying to figure out the economics of putting up a wind turbine, it doesn't really help you terribly much that you know the wind conditions 20 miles away in the nearest town. They've built a tool on top querying the simulated data so they can instantly tell their customers what the ROI would be for a specific location. Beats raising a long pole and waiting a year or two for the results.

Comment: Re:Not really seeing the point (Score 2) 120

by olau (#43232883) Attached to: Google Fiber Expands To Olathe, Kansas

Fiber is being rolled out in Denmark too, mostly in the country-side because the old electric utilities (owned by the residents) decided to have a go at it. So I too have been wondering about this. But if you have 3 TV sets/house streaming on demand in a good quality, you're going to need more than 20 Mbit/s. And with most of the ADSL solutions, it's a hit or miss whether they can actually deliver up to what they promise.

I have a friend who moved to the middle of a 300k residents city and his 20 Mbit ADSL couldn't actually deliver more than about 7 Mbit. So if his girlfriend is watching a SD channel, the line is so bogged down that it's more or less useless.

Also I have an online backup of our family photos, and working with even 40 GB of data over ADSL is sloooooow.

So more juice is definitely needed in the not-so-distant future.

Comment: Exemptions are being phased out (Score 2) 111

by olau (#43181417) Attached to: Too Much Gold Delays World's Fastest Supercomputer

Quote from Wikipedia:

Legislation published in July, 2011 removes these exemptions.

Apart from a few exemptions, RoHS2 covers all types of Electrical and Electronic Equipment (EEE) including some medical devices and monitoring and control equipment which have been exempt in the past. Previous exemptions to product from categories 8 and 9 will be gradually phased out,[16] with:[17]

- Cat. 8: Medical Devices - 3 years after publication
- Cat. 8: In-vitro-Diagnostics - 5 years after publication
- Cat. 9: Control and monitoring instruments - 3 years after publication
- Cat. 9: Industrial control and monitoring instruments - 6 years after publication

The reason stated on Wikipedia for exempting these things in the first place was being cautious until enough experience had been collected, considering that they only constituted only a small part of the electronics garbage pile anyway.

Comment: Re:"inherent short-sightedness of the free market. (Score 1) 255

by olau (#43077967) Attached to: Japan Plans to Restart Most of Their Nuclear Reactors

This is discussed in TFA:

Those who have not followed the development of competitive power markets over the past 35 years sometimes blame the collapse of new nuclear orders on a loss of public confidence and a surge in costly overregulation following the 1979 accident at Three Mile Island. If these were the true causes, the remedies might indeed lie in more political support and a streamlined licensing process, but neither evidence nor experience supports this scenario.

How to close the US nuclear industry: Do nothing

(I'm not going to repeat the long explanation afterwards backing up the above claims.)

Comment: The linked article is pretty interesting (Score 1) 255

by olau (#43077943) Attached to: Japan Plans to Restart Most of Their Nuclear Reactors

Hey, if you are interested in nuclear power, do read the article Unknown Lamer links to: How to close the US nuclear industry: Do nothing. It has nothing to do with Japan, but offers an explanation to why there's little development of nuclear in the US. Excerpt:

In phase two, from roughly 1978 to 1990, rising nuclear construction costs met falling fossil fuel prices, emerging energy efficiency efforts, and the success of independent power generators enabled by the Public Utility Regulatory Policies Act of 1978. The result was an end to nuclear construction in the United States.

And:

Those who have not followed the development of competitive power markets over the past 35 years sometimes blame the collapse of new nuclear orders on a loss of public confidence and a surge in costly overregulation following the 1979 accident at Three Mile Island. If these were the true causes, the remedies might indeed lie in more political support and a streamlined licensing process, but neither evidence nor experience supports this scenario.

Comment: Re:Liquid Fluoride Thorium Reactors (Score 1) 255

by olau (#43077771) Attached to: Japan Plans to Restart Most of Their Nuclear Reactors

It is easy to spout such nonsense out of ignorance, but there is a wealth of research that shows that the concept is perfectly sound. Moreover, they ran a test reactor for about five years and discovered no issues that were not easily solved. The only thing that remains is a solid engineering and development effort, and a government that will allow it to happen.

... and huge subsidies to pay for it.

Maybe that would be worth it, maybe not.

Comment: Re:Nuclear energy could be a great boon if... (Score 1) 255

by olau (#43077747) Attached to: Japan Plans to Restart Most of Their Nuclear Reactors

I'm sorry, but you are misinformed. Even without hippies etc., new nuclear plants are expensive. They are not competitive. Look it up if you don't believe me.

People are proposing new designs - but how's having to work out the kinks of new designs going to cut already high capital costs?

Nuclear energy in some places could be the sole source of energy if need be

Now where would that place be? I don't think it's anywhere on earth.

(Hint: a new nuclear power plant needs to deliver near constant output to be cost-effective, but consumption is far from constant. You can only use 100% nuclear with storage or heavy, heavy subsidies.)

Comment: Re:Nuclear Bias (Score 2) 255

by olau (#43077649) Attached to: Japan Plans to Restart Most of Their Nuclear Reactors

New power plants are much cheaper to run, lower risk, lower cost of operating materials, lower waste, etc - but are simply unbuildable under the wests anti-everything regime due to the wonders of local/global pressure groups making regulators tie it up in so much red tape..

I'm not particularly against nuclear power plants (as long as I don't get to live near one) but you're downplaying capital costs. Operating costs etc. are irrelevant if the initial capital costs are too high. It's the same with fusion power - so the energy source may be cheap but unless the actual reactor ends up being cheaper to build than a fission reactor, are we really going to see any commercial fusion plants? No.

What you call stupidity is really economics 101. Old power plants have been paid of many years ago so are now virtually impossible to compete against. If you want to change that you need subsidies. That's true of many renewable power plants too.

You can claim that the costs are caused by unnecessary regulation. But AFAIK regulations are determined by nuclear engineers, not green nuts.

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