Having worked on fully autonomous wheeled systems the requirements of the train system you describe sounds like a pleasure to work with because it is pretty well constrained. For the position problem you describe I recommend a properly tuned Extended Kalman Filter to automatically "calibrate the wheel diameter over the miles". It can even incorporate the intermittent GPS data to boot! https://en.wikipedia.org/wiki/... There are alternative methods to this that may be worth consideration as well but this would be a good start. For more consult your friendly neighborhood robotics motion planning and simultaneous localization and mapping (SLAM) textbooks, and research papers if you want the latest. I'm sure considering train requirements more proven technology that has been rigorous enough to make it into textbooks would be preferred.

We didn't stop at 2 nuclear bombs, we stopped at 2053. If you haven't seen it yet this video illustrates the history of atomic bomb detonations perfectly: https://www.youtube.com/watch?... Presumably, they are trying to separate dropping nukes on people from dropping them elsewhere. The key difference here is that for every kiloton of carbon released into the air there is a quantifiable economic benefit, and that same carbon "hits" everyone with its negative effects as it circulates through the atmosphere for many years later. I will agree that both are discussed as human actions that could harm the entire world. Beyond that, the differences in time scales, deployment scale, costs, and benefits of releasing compounds that cause climate change versus detonating nuclear bombs and are so dramatic that the comment isn't useful at any level beyond a nice sounding catch phrase.

Perhaps that means we should change how a word will be interpreted in a court of law?

I doubt that is what happened. Nonetheless, if it did and cryptocurrencies continue to succeed, they will change it.

In United States you are allowed to record other people out in the open due to your First Amendment rights.

There was just one a month or two ago at Pittsburgh's western psychiatric institute. Someone simply walked into a lobby and opened fire. Two dead and seven injured before an officer shot and killed the shooter. How many would it be if everyone else in the area was unarmed? http://www.post-gazette.com/stories/local/breaking/two-dead-seven-injured-in-western-psych-shooting-221520/ On the other hand how many would it be if the shooter was unable to obtain a gun? Food for thought.

100 attempts may be small enough to stop a random computer or hacker, but it may not be low enough to stop your buddy who figured out part of your password while you were typing and wants to play a prank. That is one reason the limit needs to be pretty low.

This sounds like it belongs on thedailywtf.com. So would anyone who writes copypasta look good according to these statistics? Would people who write short, carefully considered, effective, reusable code look bad? This type of application has the effect of forcing people to start optimizing their code to maximize the metrics, rather than working to produce an excellent product.

That link seems to go to a detroit redwings blog... the word robonaut isn't even on the page. http://www.freep.com/article/20101208/BUSINESS0101/101208039/1318/GM-robo-astronaut-visits-in-Warren

I didn't turn on the internet filter once when I let my little cousin do some browsing, and he ended up with the flu for a week.

Ironic, considering how ars was considered a PC fansite that gave no consideration to Apple only a few years ago.

Windows 7 is backwards compatible!

The K-10 rover runs on 20x 95w li-ion batteries, I think it takes around 8 hours to run out of power