Archive for the ‘Tech stuff’ Category

X-rays

Wednesday, November 25th, 2009

Now I have an xray machine to play with at work, I can take photographs of the insides of things. I shall make full use of this. Here’s an old transistor to start with.

Xray image of an old  Mullard OC44 transistor

Image details : Mullard OC44 PNP Germanium transistor, glass envelope. 90kV polychromatic xrays, filtered with 1.5mm Al and 0.2 mm Cu. CsI scintillator, 6 sec exposure.

Bad joke.

Sunday, October 11th, 2009

And so it was to be, that after the waters receded, Noah commanded all the animals to “Go forth and multiply.”

The ark quickly emptied, except for two small snakes, who stayed behind.
When Noah asked them why, they replied, “We can’t multiply. We’re adders.”
Noah, being the resourceful man he was, immediately got busy cutting down trees and building a large table with the unfinished lumber therefrom.

And he saw that it was good.
The snakes were overjoyed when Noah picked them up and placed them on it. Noah and the snakes both knew that even adders could multiply on a log table.

GPS

Monday, May 11th, 2009

I needed a GPS antenna for a frequency standard I bought. So I built one.

Neutrons

Wednesday, March 25th, 2009

Last week I went off to ISIS at RAL to fire neutrons at layers of fats and dye to find out how they stick together.I now have to crunch the data to see if we learned anything useful.
I took some photos of the particle accelerator (while standing on top of it) and the neutron source.

wooyay!

Friday, February 13th, 2009

Unix Epoc Timestamp 1234567890

Unix time just hit 1234567890 seconds since midnight Coordinated Universal Time January 1 1970