Archive for March, 2008
Monday, March 31st, 2008
Chicago Marathon
Perhaps this is a bit of thesis writing induced lunacy, but after talking with a friend of mine, I am currently planning on running the Chicago marathon in Oct 2009. She seems to think I won’t do it. I am currently far too out of shape to run the marathon this year, and I figure […]
2 Comments » - Posted in Running/Marathon by admin
Tuesday, March 25th, 2008
Keg Resonator
Back in the 1960’s antenna sites started getting a tad crowded, and one solution proposed was to connected many transmitters to a single antenna, using a parallel network of bandpass filters that would allow isolation between transmitters. After looking for ways to accomplish this at VHF, it was found that resonant cavities could be formed […]
Comments Off - Posted in Antennas, Electromagnetics by admin
Sunday, March 16th, 2008
Finished my measurements
Finally today I went in and finished off my antenna measurements. I had a problem last week that I wasted a lot of time trying to figure out — the main beam pattern was shifted approximately 25 degrees off broadside, which is clearly not right for a patch antenna. Problem is, the range absorber isn’t […]
1 Comment » - Posted in Uncategorized by admin
Thursday, March 6th, 2008
Freecycle
Freecycle! I read about this in the paper today, and so I finally checked it out tonight — it is a great idea. Basically, it does the old trick of turning your trash into…well, someone else’s gold. All for free! It serves two purposes: 1.) keeps junk out of landfills that are still useful to […]
Comments Off - Posted in General Science by admin
Sunday, March 2nd, 2008
My Emag Lineage
A lot of people in RF/Microwaves/Electromagnetics can probably trace back a path of teachers to Maxwell…and here is mine:
Maxwell taught emag to Jeans (at Cambridge),
Jeans taught emag to Smythe (at Princeton)
Smythe taught emag to Rusch (at CalTech)
Rusch taught emag to Strangeway (at University of Southern California)
Strangeway taught emag to me (at Milwaukee School of Engineering) […]
Comments Off - Posted in Antennas, Electromagnetics, Grad School by admin
Sunday, March 2nd, 2008
Gravitational Lens
Nasa’s Picture of the day has an image taken using the magnification due to gravity of a galaxy to see galaxies much further on. It’s a phenomenon that has been used for a long time to see distant objects.
Really interesting to see an actual image of how this looks.