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Comment: Re:"risks serious damage to the system" (Score 2) 138

by beelsebob (#49066519) Attached to: NVidia Puts the Kibosh On Overclocking of GTX 900M Series

If the user overclocks their GPU and it ends up overheating and breaking down isn't the responsibility for that on the user's shoulders? Why does NVidia care so much?

Normally, yes. But if the driver has explicit support for it, not so much. Basically nVidia is washing their hands of legal responsibility for you breaking your laptop.

Comment: Re:if by "much higher efficiency" you mean 40% vs (Score 5, Informative) 257

by beelsebob (#49062071) Attached to: Tesla Factory Racing To Retool For New Models

1) You missed out the "transmission" losses for the fuel (it takes roughly 1.2 gallons of fuel on average to transport 5 gallons of fuel to the petrol station)
2) You missed out the transmission losses for a mechanical car (around 30% of your energy is lost in the gearbox/diff/...)
3) EVs are actually about 90% efficient, not 40%.
4) Power plants are roughly 50-60% efficient even if you assume you use fossil fuels to generate the power.

What this adds up to:
Fuel powered car = 80% (fuel tanker efficiency) * 26% (engine efficiency) * 70% (transmission efficiency) = roughly 15% efficient total system (ignoring the amount of energy it takes to dig up the fuel and carry it to shore)
Electrically powered car = 60% (power plant efficiency) * 94% (power grid efficiency) * 85% (charging efficiency) * 90% (engine efficiency) = roughly 43% efficient total system.

Add to that that you hypothetically in the future can then replace the fossil fuel burning power plant with a {nuclear | wind | solar | ... } one, and you get a rather huge win. You're literally using one third the power to drive your vehicle.

Comment: Re:Everyone's already missing the point. (Score 1) 232

by beelsebob (#49047673) Attached to: Iowa Wants To Let You Carry Your Driver's License On Your Phone

So... don't implement the system this way. Why are you guys all so unimaginative in its implementation?

Here's an alternative implementation.

"Hello, officer"
"ID please." [holds up NFC scanner.]
"here" [holds phone to NFC scanner, sees the drivers license and insurance card pop up on screen, puts finger on home button to authorise transfer of information]
"thanks"

The cop now has a unique id for your drivers license and insurance card that he can look up in the DMV and insurer's databases, and you have your phone in hand, still locked.

I am more bored than you could ever possibly be. Go back to work.

Working...