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Comment Re:It's the humidity for me (Score 1) 355

Exactly - humidity plays a large role in the apparent temperature. Unfortunately, it's far easier to make it cool and 80%RH than to have a moderate temperature and 50%RH. Pulling moisture out of the air is an expensive prospect. Having spent time in cleanrooms and some precision manufacturing facilities, there is nothing quite so refreshing as walking in from oppressive heat and humidity to a 23C room with 50% RH.

I have a wood shop space where I don't have air conditioning, but I have a dehumdifier that can keep the place about 50% RH. Even at 25C - which is about as warm as it gets in the summer in that area - it's fairly comfortable work in.

Comment FTFY (Score 1) 355

If the average office worker was predominately dressed in a 3 piece suit then its not sexist its accurate for the time and probably out of date due to changing work place norms of various types.

There's no need to single out men. Put a woman in a three piece suit and she'll probably find 21-22C fairly comfortable.

Comment They should make them all core subjects (Score 3, Insightful) 116

Learning doesn't happen in a vacuum. Every subject, addressed properly, will have spillover - even if it's just as an expansion of the curriculum to create a feeling of value to a student concerning the learning environment.

But, of course, when they're all considered "Core" subjects, none of them are core subjects - they're just curriculum. Pixar said it best - when everybody is special, nobody is special. And then we're back to where we started.

Comment Re:no electric car likely, but maybe a motorcycle (Score 2) 285

If he won't fit in tesla, there are very few cars (not SUVs) he actually will fit easily into. I'm only 6' - 200# and most sedans are fairly cramped. SUVs, otoh, are generally roomy.

Funny that a car without an unlimited range is a non-started for him, but a bike with very limited range is okay.

Unless he's a regular cross-country driver, I suspect you're right - in 10 years there will be an electric car which meets enough of his (actual) needs to be his sole vehicle. On the rare case you need to go futher, you rent a gas car. It's what normal people do now when they find themselves in need of a vehicle they don't own or have with them (i.e. car in a remote city, truck for hauling, RV for cross country travel).

Comment Re:The future of electric could be much brighter i (Score 1) 285

The only way electric cars can become affordable is to double the number of the most expensive single element out there? It's the batteries that make them so insanely expensive. And to have a swap system you will need double the number (roughly) to allow for inventory, spares, and repairs. You're talking about a huge outlay of funds on a resource that is going to have to have a long payback period in order to show black on the balance sheet.

Not to mention that batteries take up a huge amount of space and weight in a car. Trying to standardize on a single battery pack is like asking laptop manufacturers to standardize on a single pack. That's didn't work even when packs were readily removable and swapable.

And that doesn't even address the short-packing someone will inevitably do. Short a pack by 20-30% of the cells so they can sell a "refill" cheaper than the next guy. Or manufacturers who simply put in shitty batteries. Go over to the candlepower forums to see the crazy differences between current mfrs actual verses tested ratings.

And solar is going to have to get a *lot* better if you think that's close to a viable option for real-time charging of the kind of power needed for a battery swap or battery charging center. Remember that we only get about 1200w/m^2 of total incident power on a great day, and less than 20% of that is usable as electricity using currently commercialized PV technology. If you want to service, say, 200 full-size cars a day (a low number at a busy interstate station), you're going to need between 17 MWh of energy. For the perfectly sunny day, that's 8500 square meters of panels without any conversion losses - close to 2 ACRES of panels. You're typical filling station site on a 1/4 acre lot.

I'd love to see electric cars really take off, but battery swaps aren't going to be the silver bullet imho.

Comment As someone who does structural inspections... (Score 2) 45

I'm kind of interested in this. I've know that Glass could have applications to the work I do every day. Even if not for me, then for a remote employee or contractor who could send back real-time data from a site for review and analysis. Or even for reference materials or two way conversations live in the field.

I'd prefer to use it as part of my plan to take over the world and destroy the Kingsmen in the process but, as they say, baby steps...

Comment Re:Doubtful (Score 1) 889

I'm generally on your side in this argument, but a manual or multi-geared transmission in an ICE is likely to fall short of the performance of a properly tuned electric drive train and control system in a wheel-spin condition. The control feedback will always be more responsive in a situation like this than an average human driver, just as a properly tuned anti-lock breaking system will always beat an average human driver in breaking performance.

Also, any type of fuel you can create for use in a compact, internal combustion engine can be burned with significantly higher efficiency in a multi-stage, regenerative fixed industrial power plant. The efficiency will more than compensate for line and battery/charging losses.

Comment Re:In the US. (Score 1) 889

When I went on vacations with my extended family (7 of us), we didn't have a car that would fit all of us and luggage. So we rented a van. Cost me $350 for the week. I saved more than that in gasoline alone by driving a smaller car regularly. I also lived for years without a pickup truck. I borrowed or rented one if I really needed it. It's not that hard here; it might be a different story in Europe.

Comment Re:Electric is Evolution. Driverless is Revolution (Score 2) 889

The difference is that a gallon of gasoline really isn't getting you much further these days than, say, 40 years ago at the efficient end of the scale whereas batteries have seen quite a large increase in energy density and overall vehicular efficiency in the same time frame and have a good deal of room left to grow.

For most drivers, and electric car in 10 years will be ideal - though there will still be outliers. Saying that electric cars are bad for most people is like saying that wireless cell coverage is bad in most of the US. That may be technically true (even the best network has far less than 50% of the landmass covered), but in a practical sense most of the population has coverage. Similarly most of the miles driven may still be ICE, but the majority of people will be fine with an electric car.

Where are the calculations that go with a calculated risk?

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