Polarizing Filters For Photography

April 6, 2007

A few weeks ago I bought a pair of polarized sunglasses and I really like the way they reduce glare. The sky is more blue and annoying reflections are greatly reduced. I bought a polarizing filter for my Canon EOS XTI camera. Here are a couple comparisons of photos with and without the filter: A […]

Path MTU Discovery and Filtering ICMP

January 22, 2007

I’m posting this for historical purposes. It’s disappeared from it’s original location. There was a time I would reference it: Path MTU Discovery and Filtering ICMP Marc Slemko <marcs@znep.com> Created: Thursday, January 18 1998 Last Modified: This document explains the details of how path MTU discovery (PMTU-D) combined with filtering ICMP messages can result in […]

ipwfadm script for Cable Modem or DSL

January 15, 2007

Originally posted December 30th 1998 on my old website. Today it would have been considered a blog. Does that mean that I’ve been blogging almost 10 years? Original location:http://www.pasadena.net/linux/linuxsecure.html #!/bin/sh## My ipfwadm rules on a Cable Modem### Use at your own risk! # My external ip address:# EXTIP="" ## Misc. startup:#echo "1" > /proc/sys/net/ipv4/ip_forwardsbin/depmod -a/sbin/modprobe […]

Announcing BarCamp LA 2

November 9, 2006

Found at barcampla.org: The next Los Angeles Barcamp has been scheduled. Mark your calendar for the weekend of November 11th and 12th. We’ll be holding it at Little Radio again and they’ve expanded so we have more room! If you’re not sure what exactly BarCamp is, what you can present and if you should attend […]

Project Orion: George Dyson and space nukes

October 26, 2006

This space travel project always fascinated me: [George Dyson]: "In a world where now you can’t fly with a bottle of water, we were going to let these physicists fly with 3,000 nuclear bombs. We need to remember the freedom that we’ve lost. We’ve become the opposite of what we were trying to be." With […]

Space smells like “like burnt almond cookie”

October 2, 2006

From BoingBoing and Ansari Blog: …the moment arrived and they were ready to open the hatch. Mike and Misha called me closer and told me to take a good whiff because this would be the first time I would smell “SPACE.” They said it is a very unique smell. As they pulled the hatch open […]

Ultimate PDA Setup

June 8, 2006

A few months ago I replaced my problematic HP iPaq 6315 with the T-Mobile MDA (Qtec 9100) with Windows Mobile 5. My primary use is email. With the MyEmail application, T-Mobile "pushes" email to the PDA when the mail arrives. I’ve found this device excellent for accessing email while not at my regular laptop computer. […]

Set the Time Machine to 1982: In-Flight, Hotel Broadband

June 7, 2006

In Glenn Fleishman’s website, Set the Time Machine to 1982: In-Flight, Hotel Broadband: This most amazing paragraph belies the next 24 years: “An unrelated company, Airfone Inc., hopes to begin testing the nation’s first commercial air-to-ground telephone system next month. Assuming the experiment works, Airfone officials say it’s a small step from an airplane telephone […]

Free Desktop Video Streaming

May 26, 2006

I found this great free video streaming service from Camstreams. We used it successfully at our last  SOCALWUG meeting on May 25th. We had over 11 people watching our meeting from many parts of the world. Right now I have the webcam pointed out my office window in Pasadena California.

RFID Toys: Unlock your front door with a wave

May 12, 2006

Found on WiFi-Toys: Make your own contactless deadbolt. This free chapter from the ExtremeTech book "RFID Toys" shows you step-by-step how to add RFID to an electronic deadbolt resulting in a door you can just wave your keys past to unlock. Neat! (via Digg) Download PDF