Archive for July, 2008
Thursday, July 31st, 2008
Antenna Java Applet
Here is an interesting Java applet that allows good visualization of the fields of some basic antenna elements.
http://www.falstad.com/antenna/
You can readily see the field pattern distortions that occur from things like making a dipole or loop longer than half a wavelength in size, the multiple lobes that form, and how the current distribution forms on [...]
No Comments » - Posted in Antennas, Electromagnetics by admin
Wednesday, July 30th, 2008
The MisInventions of Milo Weatherby
My friend Bill Whirity (see link to his website on the side) is making a movie (look for his other movie Broke on netflix!) called The MisInvetntions of Milo Weatherby. From what I have seen of it, it will be awesome. It is about these two kids and their, well, misinventions with science. They just [...]
No Comments » - Posted in Electromagnetics, General Science, Uncategorized by admin
Monday, July 21st, 2008
Moon Revolving Around the Earth
Images of the earth and moon from 31 million miles away.
“A NASA spacecraft designed to look for comets turned its cameras homeward, capturing a unique view of the moonEarth as seen from 31 million miles away. The spacecraft, Deep Impact, took shots at 15-minute intervals, which were combined to make the sequence shown below. [...]
No Comments » - Posted in General Science, Space by admin
Monday, July 21st, 2008
Power Woes
The last couple days have been full of some nasty, although short-lived storms. It has been very hot and humid, and so these mid-afternoon/early-evening storms build up. On friday I was walking home from campus and got caught in the middle of a really, really bad storm. Tons of lightning nearby, which isn’t good when [...]