Jul 25

Large spoon

I had stressful last few weeks at work – things were not working as expected and blocking other people, and I was trying to solve it. Blocking other people stresses me out a lot. In the end I figured thing out and order is restored. But stress was still there? What is the best cure for the stress? Meditation and woodworking.

What do you you if you have a bigger stress? Well, you just carve a larger spoon.

spoon1

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May 23

Looking for anomalies

When you run some process, there are two ways to look for anomalies – “white box” and “black box”. First one uses some knowledge about the process. Perhaps, you are already doing that. But comprehensive white box analysis is very expensive, so it is easy to overlook something. How about doing black box analysis on top of it?

I wrote some software that does black box search for anomalies in a series of images. It does Fourier transform, crops the low frequency part, calculates average, and then calculates distance from the average for each image.

Here is the focus sweep for the bug:

plot2

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May 02

TV Antenna

Is it hard to make a TV antenna?

You need a coaxial cable (to connect it to TV), a foam board and a piece of wire.

Schematics is very simple – you make a ring out of the wire, squish it and attach coaxial outer wire to one side and the central wire to the other side.

face_view

Plug it to TV and enjoy.

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