LATEST ADDITIONS

Yup, but this five book list of technological books that matter from the WSJ is a corker. The only book on it that I've read in Dava Sobel's superb Longitude, but if the others match it for page-turning readability, I'll hoover 'em all up.

It is theoretically possible, but they'd have to destroy the original. You go first.

Conventional wisdom holds that continental strength relies upon the solidity of rock at a depth of 15km and that below that pressure and heat cause the rock to flow as liquid. Not so fast, say Klaus Regenauer-Lieb, Roberto F Weinberg, and Gideon Rosenbaum. Their new study says that "through dynamic interaction the strongest part becomes the weakest."

But the Ace Craft Gen H-4 personal helicopter is pretty darn cool. If you have a Y chromosome, I bet you want one, too.