Sorry, submitted the wrong link, please ignore.

I have actually seen some cities where they post what speed you should drive at to optimally get green lights.

Now that cars are getting more hi-tech, it'd be a great thing to add to the dashboard.

"You're going Xmph but you should be going Ymph to save gas."

I have seen this in a rental car sometime before. But its displayed in a different way. It shows how many miles you get per gallon when you drive at the current acceleration. Just a number that changes when you press or release the accelerator.

We are doing the same thing for ErlangCamp. We realized we could lower the price point, so we did, as well as retroactively lowered it for those who already had ordered.

I like the general idea, however I would consider focusing it more on being a brainstorming session rather than a lecture. As a Ph.D. student, all my interesting conversations have been with my advisor and other faculty, usually over beers or some other informal setting. I generally don't get inspired during lectures. They are more or less to develop a base of knowledge, not to generate ideas.

It is also a chance to informally reinforce or learn new concepts about specific points of your ideas while you are discussing them back and forth.

To me, that is what a mentor does. Not help you understand a tutorial or what not.

Hmm I like that. Burden can put more on the learner mentors can pitch in or requested as required by the learner.

I agree. Using a lie as the title of an essay in order to grab attention is kind of silly. I wish the trend would stop.

Me too. Flagging the linkbait articles that practice the technique to help stop it.

DGPS requires a fixed base in order to calculation the differentials I believe.

Some states, like Iowa (http://www.iowadot.gov/rtn/), also have real time information you can access to reduce the margin of error.

I am not sure where you get your numbers, but DGPS can get within half a cm about. GPS is used by many land surveyors for this reason.

To get the sub-cm accuracy you need an RTK GPS system which as I recall is not quite the same thing as DGPS (as DGPS is traditionally thought of).