Recent content by Cephas Atheos

In the many, many, many discussions I've had with serious anti-vaxxers, it boils down in every single case to someone's mother being unvaccinated and their exposure to the Wakefield propagandists, combined with a selfish desire to exercise control the child. In many cases, there's also an...

G'day all, I'm a 50-year-old ex-hardware pseudo-engineer. I had 2 years of electronics training back in the early 80s, but since then I've been completely self-taught. I was sharp enough to be offered a position at Hewlett-Packard, in instrument repair, although I was the only team member...

When I was learning capacitor theory (way back in the early 80's), one of my instructors gave a great analogy... It still helps me to think of the dielectric as a rubber membrane that deforms (stretches) as the cap charges up. Then the potential energy of the rubber provides the energy that...

I saw some wonderful curves from sunlight scattered from a half-full glass of light machine oil. Bernoulli curves, cycloids, and combinations kept a colleague and I entranced for nearly an hour! We even tried adding water to see more - and different coloured - curves. I was still gobsmacked by...