I picked up a new 'backpack' this weekend

227 grams, without the two dinky water bottles it came with. It's going to be challenging to get a 3 day trek into this itty bitty waist bag. Warm weather trips only. My last weekend trek last fall, water became a problem, so this is probably a bit water-focused. I am making 2 leather pouches […]

I recently purchased an Ozark Trail LED Headlamp to replace one I left at my folk's…

I recently purchased an Ozark Trail LED Headlamp to replace one I left at my folk's place. I was hoping for a AA headlamp, but walmart doesn't sell those anymore, so I got the cheapest AAA one they had as it sported the longest battery life. It doesn't have the features of the other lamps, […]

I am kicking around an idea for a cell phone based water sample spectrometer

It would be used for testing the water in my aquaponics system. I am not sure that the stuff I want to test is even detectable with the hardware I am going to use, but working out the mechanics is what’s challenging for me at the moment. The genisis for this idea is at http://www.backyardaquaponics.com/forum/viewtopic.php?f=50&t=11840&start=150#p345100 The process is […]

4 foot LED light fixture for an aquarium..

I picked up a bunch of LED christmas lights on clearence this winter. I have been intending on using them for making a LED grow lights for my plants. Well, I have been on an aquarium kick lately, so I decided to make a 4 foot LED aquarium light. I ended up using 7 strands […]