ENR has an interesting feature this week on cement. After 2000 years of use by our friends in the civil engineering and transportation engineering departments, the chemistry dept finally decoded cement’s basic molecular structure.

Another nod to ENR who checked in last week with a good feature on the stimulus and job creation, asking  Do You Owe Your Job to the Stimulus?.

On a much more positive note, how would you like NASA to give you $1 Million? All you need to do is build a rocket ship.

And finally, we at K Exchange are never above a bit of self promotion. Today is the debut of Knovel’s University Challenge, so if you’re a college student who uses Knovel, click here to play (and win!)