Engineering
Physics
America
Richard Phillips Feynman
Recruited to work on the Manhattan Project at Los Alamos, New Mexico under J Robert Oppenheimer, Feynman was also tasked with co-ordinating research and development between Los Alamos and the Oak Ridge Laboratory in Tennessee. [more…]
Engineering
The Helium-Neon Laser
Introduction In my laser articles Iv’e often mentioned the helium-neon (He-Ne) laser which I have used to align the feedback mirrors and make holograms. I thought that it would be remiss of me not to [more…]
Engineering
Yes, I Got a Heat Pump or, Why Greta Loves Me Longtime
Previously, on “Heat my House” My house is a fairly typical Swedish design, built in the 60s ( it’s 2 years younger than me) with hot water radiators. The whole house, including the heated cellar, [more…]
America
Notes from an American Road Trip
My wife and I recently drove just shy of three thousand miles to see friends and family in the American Midwest. We started just outside Philadelphia, located in the southeast corner of Pennsylvania on America’s [more…]
Mathematics
Playing With Light
Science, like a sport, is an art that’s well practised. To lose educates you more than to win instantly. Okay, that’s corny but I’ve found that my project failures have taught me more information and [more…]
Computing
How MRI Works
I guess quite a few of you will have had to undergo a Magnetic Resonance Imaging scan over the past few years. As you lie in the machine’s tube with headphones on to muffle the [more…]
Computing
The Pocket Calculator
Introduction Some of you may know that the Doc has been ill after falling off of a ladder. A very bad accident and I was lucky not to break anything (other than my confidence at [more…]
Engineering
Three Gyroscopes – Part 4
Introduction As a child I loved playing about with magnets – I still do. They can move heavy objects – such as lifting cars at a scrap yard. They can also move light (-weight!) objects [more…]