Recent content by Big Al

This is probably overkill, but I hope that bits of it may help to answer your questions about voltages and currents in a simple circuit. BATTERY The electrons in a charged-up battery are under an electric 'tension', a bit like a stretched elastic band. The chemistry in the battery is trying to...

Isaac Newton imagined a bucket of water suspended on a fine (ideally torsionless) rope, set spinning. Friction eventually causes the water to rotate along with the bucket. The surface develops a dip in the middle and rises at the edges owing to the water's inertia. (You see this effect every...

Hi all! Just found and joined the forum, as I'm interested in all things 'physical'. I'm retired now, so I get the time to think and ask questions now and again. Looking forward to reading some of the topics being discussed. Cheers, Big Al