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Comment: Re:Global warming is causing bad grades now (Score 1) 187

Yes. Performance was also degraded as classroom temperatures reached 30 degrees Celsius. I didn't listen to the full presentation, although there probably wasn't enough in it to ascertain whether they had succeded in separating the effect of CO2 and temperature, but it probably wasn't treated, as the presentation was intended for people who designed ventillation systems.

Comment: Re:Global warming is causing bad grades now (Score 3, Informative) 187

No, it's actually quite right.

Just yesterday I happened upon a presentation by a company called Swegon, which designs and manufactures ventillation system equipment, in which they showed a material from a British researcher who (I believe on their proposal) had arranged measurements of student performance as a function of class CO2 levels and classroom temperature and the effect on the speed with which students performed diverse simple tasks, like adding numbers, multiplication, etc. and overall it turned out to drop by 30% as CO2 reached the worst levels.

In some schools the CO2 levels reached about 2000 ppm. The idea that this doesn't affect people is ridiculous and properly designed ventillation systems are important.

Comment: Re:Not the way we have carbs now (Score 1) 329

by impossiblefork (#46967265) Attached to: Gaining On the US: Most Europeans To Be Overweight By 2030
But calories in and calories burned aren't independent variables.

You can cause health problems that make eating less impossible by eating less sooner than you would cause healthy weight loss. There's an old story that I found in an old fechtbuch. An english fencing master complained of a spanish argument that you if you always held your point as far towards your opponent as possible would strike him first, and he compared this argument an old story of how a man goes to woman for a cure against seasickness who is to have told him to "Take this rock. As long as you have it in your mouth you will not throw up" and as he went to sea and eventually threw up he realized the precise way in which the woman's statement was true. I feel that your argument involving this accounting inequality has the same character.

Comment: Re: Sponsor? (Score 3, Interesting) 131

Computer holography, Path-tracing, the fast-multiple methods for radiosity-- and if it has to be automotive related: alternative thermodynamic cycles for engines, field modulated magnetic couplings (like the ones magnomatics are making as gearboxes/electric drive systems for cars) or mass-production of parts from fibre reinforced plastic.

All of these are nerdier, but perhaps not as easily digested.

Comment: Re:Screw other people (Score 1) 800

Then pretty much every human would have no business driving. The way to ensure this is to greatly honor whoever acts correctly and to ensure that there will be more of them. That is of course society's prerogative however and in a bad society where this is not rewarded the cost is paid in lives instead.

Comment: Re:Screw other people (Score 1) 800

Your first duty is always to the other road users.

Therefore, in a crash the first thing that you avoid are unprotected trafficants, first pedestians and then motorcyclists and by analogy it is reasonably to then avoid such cars as have the least protection. To drive into a pedestrian to reduce harm to oneself in a crash is not acceptable.

Comment: Re:Expensive (Score 1) 109

Hitachi does have a prototype of just that and it is linked to from the wikipedia page that you linked to. A video showing what seems like a prototype of it is the last linked thing.

It seems like something which would definitely allow higher passenger capacity for a given amount of shaft space.

Comment: Programming is unlikely to be a primary profession (Score 1) 581

by impossiblefork (#46726371) Attached to: Michael Bloomberg: You Can't Teach a Coal Miner To Code
It's clear that not every job lost can be replaced with a programming job. To imagine a single rather small profession as the profession into which coal miners, plant engineers that become redundant due to equipment that breaks less often and so on isn't sensible.

I don't feel that the matter is that coal miners aren't intellectual enough, but that the need for software isn't infinite. Finding productive work for people is going to require finding completely new ways for humans to contribute and to do so is going to be very difficult. Trying to let people who have been laid off study and learn something new is a good path for a society, but I don't believe that there is enough programming to be done for programming to be sufficient.

Comment: Re:The world is changing. (Score 1) 224

by impossiblefork (#46692159) Attached to: Online Skim Reading Is Taking Over the Human Brain
I remember reading Rudin's little analysis book and reading it on the principle that it was appropriate to stay on each page for about 30 minutes, or until all proofs were remembered and could be reproduced at will, following a recommendation of some famous mathematician whose name I can't recall (but for some reason I think that it was Hardy or Littlewood).

There's also apparently such a recommendation in Axler's linear algebra book, but there the recommendation is that one should take no less than an hour per page. I think that this recommendation may be excessive though and I don't think that either of these should be followed strictly for all pages, but they're a good warning for seeing that one is trying to read too fast.

Comment: Re: Truly (Score 1) 99

by impossiblefork (#46425203) Attached to: Elon Musk Talks Tesla, Apple, Model X
No, it's fairly good. A smith needs substantial infrastructure to do what he does, his whole smithy with numerous tools which represent a high capital cost. A carpenter does not have quite the same capital cost although an analogy with a carpenter instead of a smith does have definite appeal. Especially now that I come to think of Hogarth print in which there is an image of a carpenter pawning his saw.

Comment: Re: Truly (Score 1) 99

by impossiblefork (#46303373) Attached to: Elon Musk Talks Tesla, Apple, Model X
A captain rarely owns the ship the ship he captains though.

I think that what one ought to imagine here is something like a smith who doesn't own his tools, but has access to tools which he does not control, with his tool access and the tool access of many other smiths entirely at the mercy of some large tool-owner.

Comment: Re:Wake up SAE. Standardize TREs now. (Score 1) 191

by impossiblefork (#46261267) Attached to: Elon Musk Says Larger Batteries Might Be On the Way
I feel that adopting a design in order to bypass a legitimate regulation is rather bad.

There's also a whole lot of inherent problems with towed generators: A car towing something is not maneuverable and unlikely to pass the elk test, there will be unnecessary drag and towed generator will be heavy, since it will need to have wheels and some sort of shell. Series hybrids are already a fairly established thing and I do not believe and are the reasonable solution. The BMW i3 already has an optional built in generator (a two-cylinder petrol engine), Jaguar made a concept with two turbines some years ago and the Chevrolet Volt is also a series hybrid.

Consequently, good systems solving the range problems of electric cars have been in production for years so there's no reason to go for a bad system like a towed range extender.

Every successful person has had failures but repeated failure is no guarantee of eventual success.

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