A lot has changed over at Parallax since 1993, and now they’re spending time with the Propeller, an 8-core microcontroller where interrupts are a thing of the past.

Parallax didn’t just jump into some cookie cutter ASIC, they made their own parallel multi-core microcontroller. Designed by [Chip Gracey], the Parallax Propeller has 8 cores, called cogs.

Rifle scope parallax is often misunderstood. Here is a simple guide to how parallax works and how it applies to rifle shooting.

Parallax is the apparent shift of an object as your point of view changes; this is one of the advantages of two eyes — better depth perception thanks to parallax.