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Comment Re:Doesn't work! (Score 4, Interesting) 133

The entry level will have a 200 mile range. I'm sure there will be versions with more than a 200 mile range. As long as there is charging at the ranch it isn't a problem. I drive over 200 miles in my model S without any problems. Also, adding 20-50 miles of range at a supercharger doesn't take very long. When the supercharger kicks in on my model S it charges at over 300 miles/hour and my car is a 1st generation. The current ones charge faster since mine is limited to 90KW (revision A battery pack) and the new ones charge at 135KW and may soon hit 150KW. With my car, if I had to add 20 miles of range and my battery were at 20-40% it would take approximately 4 minutes to add 20 miles of range.

Being smaller and lighter I expect the model 3 will gain range quite a bit faster than the model S, since the same amount of power will provide more range.

On my last trip to Reno I had to stop in Truckee to use the restroom at the nearby grocery store. In the time it took me to use the restroom and buy a couple items I had another 50 miles of range.

I generally find that the speed of charging at a destination isn't all that important as long as I can be fully charged overnight.

Comment Re:Gearbox in electric car (Score 3, Informative) 133

Tesla needs custom gearboxes for several reasons. First of all, being electric it doesn't need a multi-speed transmission. Second, it has to be able to handle a very high amount of torque all at once since an electric motor can generate high torque at 0 RPM with virtually no lag and very low inertia. Tesla worked with several manufacturers for the Roadster transmission and they all failed miserably due to the high torque involved until they designed and built their own.

Submission + - Law for Autonomous Vehicles: Supporting an Aftermarket for Driving Computers (

Bruce Perens writes: How will we buy self-driving cars, and how will we keep them running as self-driving software and hardware becomes obsolete much more rapidly than the vehicle itself? Boalt Hall legal professor Lothar Determann and Open Source Evangelist Bruce Perens are publishing an article in the prestigious Berkeley Technology Law Journal on how the law and markets might support an aftermarket for self-driving computers, rather than having the manufacturer lock them down or sell driving as a service rather than selling cars. The preprint is available to read now, and discusses how an Open Car, based on Open Standards and an Open Market, but not necessarily Open Source, can drive prices down and quality up over non-competitive manufacturer lock-in.

Comment Re:IT is amazing (Score 5, Insightful) 99

Most folks drink stale coffee. Try roasting your own (I use Sweet Maria's for supplies) or going somewhere with a roaster on site who is honest enough to tell you the roast date. It should be from 2 to 10 days ago. Flavor development in coffee is a rancidification process. Like cheese, you want to catch it when it is a little, but not too, rancid.

Comment Re:...Or Just Take Aspirin. (Score 2) 99

Let's not forget the effect of helicobacter pylori bacteria on ulcers, they are in general held to be the main cause these days.

I have another theory about the beneficial effect of aspirin, caffine, etc. We evolved with them. Our diet was rich in salycilates and chemicals similar to theobromine or caffine. They came from the plants we ate, some of which were mildly toxic and which we evolved to process to the point that we became dependent on some of their effects. There are a lot of things in the primitive diet that modern people don't eat much at all, like acorns which had to be soaked to remove alkalai and tannin.

If this is the case, taking aspirin and drinking coffee or tea replace substances found in a more primitive diet.

Comment Re: Not really needed for drones (Score 1) 24

Modulation designators that state the payload type don't make much sense with digital data transports. You can do digital TV or anything else with 4 MHz bandwidth. Cellular doesn't make much sense unless they have a really long hover time and drone life, in which case it could be a pop-up base station.

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