$400! In Illinois there is no charge for the test.

Not really, vehicles deteriorate and may begin to fail emissions standards. You are lucky to have a dependable vehicle that gets the same results after all these years. They are usually testing to see if your vehicle is functioning properly. In Illinois they just do an OBD scan to make sure no fault codes are present for the O2 sensor and catalytic convertor. However, even a perfectly maintained vehicle should show some deterioration in emissions performance.

I develop vehicle emissions system for a living. An O2 sensor and a catalyst will get rid of the vast majority of emissions from a spark ignited vehicle. Little or no emissions controls would mean 1970s era cars. Think carburetor and no catalytic convertor.

and everyone arrested claims inappropriate use of force. Unless someone goes case by case, these statistics mean nothing. Both sides are biased, that's why police body cameras and bystanders recording video are such hot topics lately.

No, SolarCity doesn't lease the panels back to you - they sell the power from the panels to you. And they control the rate you pay and have the ability to raise it annually (up to 2.9% per annum).

Solar city has a variety of financial plans available. I believe you are referring to the "SolarPPA" option, but leasing panels is also an option.

The number I've been hearing is $30/month/subscriber. However, it's tricky to nail that figure down, because Disney sells ESPN as a package with all of its other channels. That's the problem. Once it becomes unbundled, you find out how much it really costs.

The Germans have done similar things since 1925.

The reason why diesel engines have problems with NOx emissions is because the high temperatures and pressures in diesel fuel cause the nitrogen in the air to react with oxygen.

The high temperatures and pressures in the combustion chamber cause the nitrogen and oxygen in the air to react with each other to form NOx.

Source: I'm a diesel emissions engineer.

Thank God there's Cyanogenmod, where my N7 is a big sluggish but still perfectly functional.

You don't necessarily need Cyanogenmod, you could just roll back to the factory image for KitKat.

Yes, the controls system appears to definitely know how it wants the rocket to be oriented. It looks like it keeps overshooting it's target though. If it is PID controlled, the 'stiction' would cause the integral term to 'wind up' and overshoot once the valve becomes unstuck. This can happen every time the valve changes direction as it must come to a stop at some point to do so.

I've run into this kind of thing a few times in my career. I'm curious how they fix it. In my experience it is never an "easy fix" as Musk says. There is always some performance tradeoff.

I tried F-Droid for about a year based on a Slashdot recommendation. I wasn't impressed. Most of the apps were not very good. The good ones could be found on Google Play as well. All I got was a sense of insecurity because I was allowing apps to be installed from another source.

Why do you like it?

I've been watching Tesla stock since its IPO. 1% for some stocks is a lot. However, Tesla frequently swings 10% in a single day. I would say this was less volatility that usual.

I think the tipping point for electric vehicle range would be 1000 miles on one charge.

I disagree. The human body has needs too. Most people want to stop to eat and use a restroom around every 4 hours. If you can charge a car in the time it takes to have a leisurely meal, and then drive for another four hours, it should be fine for cross country driving. The Tesla Model S's largest battery provides just enough energy to propel the vehicle at highway speeds for about 4 hours. Also, the supercharger can charge the battery in about an hour. It's almost like they planned it that way!

I'd like to see Tesla partner with a chain of diners, like Denny's, that's open 24 hours a day.

Let them also use police shooting ranges for free as long as they're in good standing.

Good standing? Let them use the ranges even if they are in poor standing. Provide proper training. The next turf war will decimate the gang member population, and reduce the number of stray bullets. Everyone wins!

My first semester under my university's co-op program I was a human issue tracker. People would contact me with issues and I would track them in an excel spreadsheet. I would then follow up with various stake holders to track the progress on each item.

Thinking back on it, it was strange. I spent my college internship acting as a manager...

Depending on the volume of issues, this doesn't have to be a full time job. One person just needs to be the point of contact, document, and follow up on the items.