- Star Tales - Sculptor (ianridpath.com)
A faint constellation south of Cetus and Aquarius, invented by the French astronomer Nicolas Louis de Lacaille during his mapping of the southern skies in 1751–52. His original name for it, given on his planisphere of 1756, was l’Atelier du Sculpteur, the sculptor’s studio, although in the accompanying star catalogue he spelled (or mis-spelled) the first part of the name as ‘attelier’. As described by Lacaille, it consisted of a carved head on a three-legged table, with the artist’s mallet and a chisel on a block of marble next to it (although his illustration actually showed two chisels). On Lacaille’s 1763 planisphere the title was Latinized to Apparatus Sculptoris.
- Reverse engineering the ARM1, ancestor of the iPhone’s processor (righto.com)
Almost every smartphone uses a processor based on the ARM1 chip created in 1985. The Visual ARM1 simulator shows what happens inside the ARM1 chip as it runs; the result (below) is fascinating but mysterious. In this article, I reverse engineer key parts of the chip and explain how they work, bridging the gap between the puzzling flashing lines in the simulator and what the chip is actually doing. I describe the overall structure of the chip and then descend to the individual transistors, showing how they are built out of silicon and work together to store and process data. After reading this article, you can look at the chip’s circuits and understand the data they store.
- Sculptor (constellation) (Wikipedia)
Sculptor is a small and faint constellation in the southern sky. It represents a sculptor. It was introduced by Nicolas Louis de Lacaille in the 18th century. He originally named it Apparatus Sculptoris (the sculptor’s studio), but the name was later shortened.
