Engineering
Making A Ruby Laser – Part Two
(a ruby rod lit by two bright blue LEDs. Due to the IR filter in my camera the pink colour is actually red. What you are seeing is the absorption of the blue light and the [more…]
Physics
Engineering
Making A Ruby Laser – Part One
Introduction For many years the Doc has had the desire to attempt the construction of a ruby laser. After six months of hard work, disappointment, late nights, lots of booze and a drained bank account [more…]
Engineering
I Learned About Flying From That Part Two
It was another hot morning in Fremantle, Western Australia in early January. Forecast for 36 degrees Celsius, 97 in old money. “Gonna be a scorcher, Geek-o!”, said my benevolent host and long-time friend Mike, whom [more…]
Engineering
I Learned About Flying From That
When I was a young boy, I hated flying. I mean, really hated it. I think it was due to a traumatic flying experience on a transatlantic flight to Florida in a 747, back in [more…]
Physics
An abridged history of the atomic model
Towards the end of the 19th century, scientists were considering the structure of the atom. The atom was deemed to be a tiny piece of matter which helped answer questions regarding spectroscopy. Spectroscopy being the [more…]
Physics
The Sun – page 2 unfortunately….
Previously, we looked at our Sun and how it works however only a small part was covered. We saw that quantum tunneling allowed protons to fuse in conditions that classical physics – that relying only [more…]
Physics