- The ancient Greeks called this constellation Θηρίον (Therion), representing an unspecified wild animal, while the Romans called it Bestia, the beast. It was visualized as impaled on a long pole called a thyrsus, held by the adjoining constellation of Centaurus, the centaur. Consequently, the centaur and the animal were often regarded as a combined figure, although Ptolemy listed the animal as a separate constellation in the Almagest.
- Star Tales - Lepus (ianridpath.com)
This constellation was known to the Greeks as Λαγωός (Lagoös), the Greek word for hare; Lepus is the more recent Latin name. Eratosthenes tells us that Hermes placed the hare in the sky because of its swiftness. Both Eratosthenes and Hyginus referred to the remarkable fertility of hares, as attested to by Aristotle in his Historia Animalium (History of Animals): ‘Hares breed and bear at all seasons, superfoetate (i.e. conceive again) during pregnancy and bear young every month.’
- Down to the silicon: how the Z80’s registers are implemented (righto.com)
The 8-bit Z80 microprocessor is famed for use in many early personal computers such the Osborne 1, TRS-80, and Sinclair ZX Spectrum. The Z80 has an innovative design for its internal registers, with two sets of general-purpose registers. The diagram below shows a highly-magnified photo of the Z80 chip, from the Visual 6502 team. Zooming in on the register file at the right, the transistors that make up the registers are visible (with difficulty). Each register is in a column, with the low bit on top and high bit on the bottom. This article explains the details of the Z80’s register structure: its architecture, how it works, and exactly how it is implemented, based on my reverse-engineering of the chip.