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Datasheets:
2N5160 Transistor (obsolete, and the datasheet was hard to find):
2N5160 (pg 1)
2N5160 (pg 2)
2N5160 (pg 3)

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Gravitational Simulation Code: If you're writing a gravitational simulator, here's some code I wrote that performs the very speedy Barnes-Hut N-Body algorithm; O(NlogN). It hasn't been extensively tested, but should be close. You are free to use it anyway you wish.

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Seattle Veterinarians Comparison: Seattle Veterinarians.

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Visiting Seattle & Surrounding Area: Seattle Activities.

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Laser Spacewars:
Spacewars is a one-to-four player space combat game, ready for coin-op arcade installation. It is a "vector" type of display, meaning that there are no pixels - everything is drawn with smooth lines (more like an oscilloscope rather than a computer monitor or tv), and is projected by laser-beam onto a wall or screen (outside wall of a building, indoor ceiling, etc). Each player gets a ship, and flies around trying to kill the other players using thrust, fire, warp, and hyperspace. There's also a Sun to avoid (or hide behind) in the middle of the screen. The last ship living gets a point, and the game ends at a preset score where the winner enters their initials. There is a lot of subtle detail in the game, and it's a lot of fun. The average event installation generally has all four stations filled with players, with more waiting to play. The game can operate in "free" mode, or with a coin-box.

Calendar of upcoming and past events:
• Sat&Sun 5/8 & 5/9/2004 - NWCGE-2K4, The NW Classic Games Enthusiasts Expo 2004 is the largest videogame event in the Pacific NorthWest. All the Classics From PONG to the XBOX, May 8 & 9, 2004. At the SeaTac Holiday Inn, 17338 International Blvd, near SeaTac Aiport.
• Wed 12/03/03 - At the monthly Dorkbot meeting (1st Wed of the each month) at CoCA (on Dexter, one block south of Mercer, in Seattle). The meeting starts at 7:30, and I will be speaking, describing the internals and how one controls a laser with a computer. I'll have Spacewars running before and after the meeting, so come early or stay late to play.
• Fri 8/22/03 - Fremont Outdoor Cinema, before the movie (The Wrath of Khan). Doors open at 7:30, Spacewars about 8:15, movie starts about 9:00.
• Fri 8/8/03 - Fremont Outdoor Cinema, before the movie (Back to the Future). Doors open at 7:30, Spacewars about 8:15, movie starts about 9:00.
• Fri 5/02/03 - An art opening at On The House, 7-11pm, between 12th & 13th on Pike St.
• Sat 3/15/03 - A show at the 2003 NW Classic Gaming Expo as part of the Classic Gaming Weekend.
• Fri 3/14/03 - The first big public show at the Little Theatre's movie screen at 19th & Mercer.
• Fall/02 - Various private showings, indoors and out.

Contact me for details, photos, to book a show, or if you're interested in manufacturing for commercial sale.

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Bank Fun:
Here's a fun technique I came up with to double the interest rate you get on your savings account at your bank. By taking advantage of the fact that 1/2 cent rounds up to a full cent, you get a full cent interest when you should just get 1/2 cent. Of course it only works for a little bit of money, but it's fun at least to know you're doing it.

Directions (for accts w/ quarterly interest):
1. Start with your yearly interest rate, (e.g. 0.25%)
2. Divide by 4 (e.g. 0.0025 / 4 = 0.000625)
3. Divide the 1/2 cent desired interest ($0.005) by the number in step 2 (e.g. 0.005 / 0.000625 = $8.00)
4. Keep that amount in your acct for one full quarter.

You'll get a full cent ($0.01) of interest on $8.00, even though you only earned 1/2 cent (because 0.5 rounds up to 1.0). This is a rate of 0.50%, even though the bank only thinks it's paying 0.25%. This will work with any interest rate, i.e. if the yearly rate is 2%, it will only require $1.00 to earn your penny per quarter, giving $0.04 for the year, and an effective rate of 4%. Ta Da! Have fun.

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Passwords:
Ok, I know you're really just here for the Default Passwords of various systems & hardware.

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News & Politics:
RadicalRadio.org is a well produced streaming audio station featuring current news, analysis, and commentary.

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Infrared Illuminator:
You can use your infrared camera, nightscope, or camcorder with an IR mode (many b/w camcorders have this) to see in the dark at long distances. Check out these Instructions for Building an Infrared Illuminator.

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Torture Memo
Here's the March 6, 2003 Torture Memo written by the US Government trying to justify the use of torture.

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Low Power FM
Here's the LPFM Third Adjacent Channel Interference Analysis commissioned by the FCC. The airwaves are owned by the public, and if you're only transmitting a couple of watts, then there's room between existing stations. You can buy your transmitter at NRGKits.com. I prefer the PLL Pro III, which is available preassembled or in kit form. You can be on the air for around $200. With the proper antenna, it has a range of about 2 miles.

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Photos (no preview thumbnails; just the filenames).
(All Images)

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Contact:
Let's see, what else?  Perhaps you'd like to send me some secret messages...
Contact Info and I accept money.