Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. ×

Comment Re:I live not too far from a major highway (Score 1) 92

I live not too far from major highway. Noise and pollution from automobiles worry me. The electric revolution cannot come soon enough

Electric cars aren't going to help your noise problems. With modern cars, most of the noise comes from the tires at high speeds. Electric cars use the same tires as gas cars.

And why the hell do these riders intentionally make their bikes so loud?

Two reasons: 1) many of them actually believe (or claim to believe) all the noise makes them more visible to car drivers, even though it doesn't (it's mainly people behind them who hear all the noise; that isn't helpful for safety), and 2) they're obnoxious people who like to make a nuisance of themselves for attention.

As for beating the shit out of them, they only really annoy me if I'm outside my car, such as when they pull into a gas station or parking lot that I'm at. When I'm inside my car, the noise is a little annoying but generally short-lived and not that high in volume; outside, it's deafening.

Comment Re:Kinda makes sense actually (Score 1) 92

No, what GM needs to do is license their technology from the Volt to other automakers. The biggest problem with the Volt is that it's made by GM, the same company that made defective ignition switches for years and intentionally hid this and murdered people so they wouldn't have to pay for a recall. They're also known for making cars that don't last long and have crappy interiors that fall apart in a few years, and very ugly exteriors too, not to mention very poor driving dynamics.

If I could get that technology in a car made by Honda or Mazda, I'd buy one.

Comment Re:This simply means we're succeeding. (Score 1) 92

Solar-powered cars are physically impossible. There isn't enough photonic energy, even in Arizona, striking the surface of a car to power it. Unless you mean battery-powered cars recharged using solar power, which is completely doable, and already done today (ask anyone who has a Tesla and a bunch of solar panels on their roof).

Solar power is completely viable almost anywhere, not just in equatorial regions and deserts. Germany makes a huge amount of power with it, and their climate is not sunny at all (look at their latitude on a globe). You do need more panel surface area in such places to make up for reduced sunlight though, but it's not that bad.

For windmills, you can use vertical axis windmills to avoid slaughtering birds.

For nuclear ships, there was a nuclear-powered cargo ship made back in the 70s I think. It wasn't used very long; it was simply too expensive to operate. It wound up in a museum in Charleston SC, though I think it's been moved from there now. Nuclear power works great for ships if you're the US Navy, but it's costly and requires extremely well-trained personnel. It's too bad someone like GE hasn't figured out how to make it much simpler to operate and thus cheap enough to build into cargo ships, perhaps as easily-replaced modules, to eliminate fossil fueling. The problem here is that fossil fuels for cargo ships are just too cheap, and there's no emissions laws at sea.

Comment Re:This simply means we're succeeding. (Score 2) 92

The best next thing to tackle is reducing air travel and freight. Air travel should be one of those novelty things that the lucky few can justify, same with having something air freighted, sure its nice to get stuff 2 days, but reality is waiting a week or two isnt a problem. Unless I realllllllly need something fast I choose the slower cheaper shipping, and so what that it took 2 weeks to get something shipped from Florida to Seattle for a home project that can wait.

This is basically wrong, as Amazon has proven.

Of course, if you're buying for a specialty vendor that only has one shipping location that's across the country from you, it's going to take a few days to be shipped over by truck or train.

However, when you buy from a very large retailer like Amazon, they have multiple warehouses. Amazon has one in nearly every state now, last I heard. So when you order from them, depending on what you get, you may very well get it from a warehouse that's not very far from you, so you don't need air freight to get your item quickly. And those warehouses can, of course, be stocked by trucks or trains that take a week to get stuff around.

We really could be using more trains in the US for shipping stuff; it's a lot more efficient than truck, and it's compatible with trucks too, thanks to containerization (meaning you can ship a container from a rail terminal the last few dozen miles to its final destination, instead of driving it across the country with a truck). We've done a really bad job there, considering we used to have a lot more rail shipping.

As for travel, what we need to do is build SkyTran for shorter-distance travel to replace most cars, at least in the suburbs, and for inter-city transport. With pods that can travel at 100-150mph on suspended maglev rails, you'd be able to get around to cities within your region pretty quickly, much faster than by ground car, and probably faster than plane too since there's no TSA. For longer-distance travel, Hyperloop sounds interesting though it hasn't been proven (one problem with it seems to me that the passenger cabin doesn't hold nearly enough people to exploit economies of scale, but if it works out to have lots of pods, like SkyTran, then this might not be a problem). HSR seems to not be that great an idea; the speeds aren't much higher than SkyTran, it costs an absolute fortune to build (as it sits on the ground and has to be site-built rather than factory-built), it isn't suspended like SkyTran, and it isn't anywhere near as fast as Hyperloop.

Comment Re:And Yawn! (Score 1) 13

A properly designed system shouldn't be highly dependent upon any kind of persistence layer, although if you follow the provider's example programs you'll tend to spread dependencies through your code. But a smart designer hides that all away deep down in some kind of abstraction.

A demonstration of exactly how little you are dependent on a vendor is probably a very good thing, if you're a big customer. Oh, we'll run *this* part of our product on the other guy's cloud service and boom. It happens. Shows the vendors who's boss.

Comment Electrical Fuel Transmission (Score 1) 122

The bigger the vehicle + cargo the more fuel you need to lift PLUS you need more fuel to lift the extra fuel.

If using conventional fuel then you are right. However unlike physical fuel electrical power can be transmitted wirelessly. Of course the technical challenges to do this would be immense for a moving vehicle but it does present a possible option not available to traditionally fuelled vehicles. However given all the challenges with current technology I would agree with your conclusion that Uber is very unlikely to crack this but it remains an intriguing possibility that at some point someone else might.

Comment Re:Dishonest Arguments not Politics (Score 1) 576

Not very many creationists deny that creatures change from one generation to the next....so I think it's dishonest to portray creationists as though they have their eyes and ears covered and deny all of that.

That is actually far less rational though so my apologies for giving creationists too much credit. So what you are saying is that they believe evolution happens but that despite the fact that this evolution could explain the entire fossil record they reject that idea and believe that the world was created by someone with a heck of a sense of humour because they went to all the trouble to create fossils consistent with evolution? I have a hard time believing that anyone really believes this: it seems far more probable that this is a rationalization they use to let them support measures against diseases without having to publicly admit they are wrong.

Comment Re:Paying customers and age appropriate roles (Score 1) 226

Is it possible to fix? Maybe. Won't be easy though. The key would be proving that age discrimination is actually harmful to the economic outcome for a film. Challenging case to make since they don't let a lot of people who aren't white and young (if women) into movies to test the theory.

I suspect it's also going to be a challenging case to make because it's wrong. They simply also make movies which appeal to that audience, which is not interested in big special effects and whatnot. Different audience, different budget, different casting. And different release strategy as well; many of those movies are direct-to-video.

Comment Re:Dishonest Arguments not Politics (Score 1) 576

the argument is only "overwhelming" when you ignore thousands of scientists who disagree

I don't know *any* scientist who disagrees with the fact that the planet is warming. Where the disagreement lies is in the degree of the warming that is being caused by human activity. What we need to have a is a sensible debate about how we can start to reduce greenhouse gas emissions while the science figures out how much we need to reduce it by.

Instead we have an inflammatory debate with one side refusing to admit there is any problem at all (despite the overwhelming evidence that the planet is warming) and the other side responding with equally non-scientific doomsday-like scenarios. The result is deadlock and inaction when instead we need to start taking sensible, measured actions now to avoid a situation where we need to take very significant, rapid actions which could cause huge economic upheaval.

Comment Re: Rule of thumb (Score 1) 279

Really? No domestic or international commercial air traffic flies over your house? Where do you live that there's no such air traffic. That would be refreshing, I must say. Around here, we see and or hear hundreds of flights a day. The lower altitude stuff is not as common, but there's really no distinction from an FAA perspective.

Slashdot Top Deals

Never appeal to a man's "better nature." He may not have one. Invoking his self-interest gives you more leverage. -- Lazarus Long

Working...