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Comment Re:Hello insurance fraud (Score 2) 199

"And the excess damage?"

What excess damage? You (the insurance company) have the data, and here is my car. There's no "excess damage", just "damage".

Do you think (the insurance company) that my accident should render less damage? That's not my problem, I'm neither a materials engineer, nor I designed my car.

Do you think I commited fraud? Why do you think so? Maybe because you know your devices are easily hackable? Maybe I should sue you (the insurance company) for puting me at risk for your lack of due diligence.

Yes the insurer absolutely will think you committed fraud. Then their very first step will be to ask the police for an accident report. The police will then report that the skid marks indicate that the car must have been travelling at at least 50mph, not the 20mph indicated by the dongle.

Believe me, when that is put in front of a judge, your "putting you at risk" charge is going to be thrown out, and their fraud charge is going to hit you square between the eyes.

Comment Re:Probe (Score 2) 170

1) It's very difficult to get there - Voyager 1 and 2 are the only probes ever to get that far from the sun and still be functional, and they took decades to get there
2) If you hang around in the orbit of the planet, then you'll have the same orbital period as it. Effectively, you'd stay stationary relative to the planet, and as a result never spot it unless you got lucky and landed exactly where the planet was.

Comment Re:Only 30 Grand? (Score 1) 426

That doesn't mean total system efficiency is better.

Which is why the rest of my comment covers figuring out the total system efficiency.

Comparing a cold engine (worst case scenerio) with a an operating power plant (best case).

sorry, this was a typo, the word "cold" should be substituted for "golf", and I should turn off autocorrect. 34% is roughly the best efficiency you'll get from the golf's engine, once warmed up, at its optimal rev range. In reality, the average case will be substantially lower than this. The current best engines out there in terms of efficiency only manage about 38% thermal efficiency, and even then, again, only at their optimal rev range.

Not really. You're over estimating the mechanical transmission losses, while under-estimating the electrical transmission losses. (Multiple conversions at the plant, during transmission, and during use)

Actually, no, I'm not over estimating mechanical transmission losses. There are several studies into this. Mechanically propelled cars really are only roughly 15% efficient at the wheel. That said, you're right, I did miss out transmission efficiency. The electric grid is about 94% efficient in the US. Meanwhile, carrying a gallon of diesel to petrol stations in a tanker, burns on average 0.2 gallons of diesel, so roughly 84% efficient. That makes the total system efficiency of diesel 12.5%, and for electricity 45%. That actually makes the story worse for diesel, not better.

If you ignore fuel production costs, Modern ICE engines compare quite well.

1) Now who's got "obvious bias"? "If you ignore half the equation, then this looks better"
2) It doesn't even look better - as outlined above, it actually looks worse for fuel if you include transmission efficiency.

Comment Re:Only 30 Grand? (Score 3, Insightful) 426

Even if the answer is a giant coal power plant, that coal power plant is much more thermally efficient than your Golf TDi. The cold TDi's engine is around 34% efficient (and that's ignoring the fact that a petrol car has a much more significant gear box and transmission than an electric, and hence loses more there, it's likely to only about 15% efficient at the wheels). Meanwhile thermal efficiency for power plants is around 60% and electric cars have thermal efficiencies around 80%, so in total about 48% thermally efficient at the wheels. That is, for the same power, an electric car will burn 3 times less fossil fuels, even if you assume that it is 100% powered by fossil fuel power plants.

Comment Re:Stop trying to win this politically (Score 5, Insightful) 786

If Global Warming is a science issue then stop trying to make political arguments.

Global warming is a science issue and is argued by scientists in papers. The problem is that convincing everyone to do something about global warming is a political issue, and politicians aren't above discrediting anyone who opposes them to get their way.

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