Some science/tech items - scrolls, nanostacks, and beyond

Some brief science and technology items heading into the weekend: IBM has reported making prototype chips for the "0.7 nm node" . As always, one should not interpret that size scale literally, since the effective diameter of a single silicon atom is around 0.2 nm. The basic building block of their architecture here is the nanostack , which is a limiting case, somewhat 3D-integrated version of…