Refugee Radio – An energy-independent AM-receiver radio…
“In these disaster-ravaged times, whether natural or otherwise, the refugee radio is more than an object of convenience. Mareike Gas has created this handy, energy-independent AM-receiver radio. The Refugee Radio is powered by the energy of radio waves (crystal radio) and was primarily conceived for two situations in mind – any emergency crisis and a long-term refugee circumstance. The Refugee Radio is a great device for calamity-prone/conflict-plagued areas or simply for those insufferable power blackouts.” [via] Link.
“Most barcodes are 12-digit UPC barcodes, with ten digits at the bottom of the code and one small number to each side. Impress your friends by asking them to select a random item from the kitchen with a removable label and cut the numbers off of the UPC barcode; you can then proceed to read the numbers encoded in the lines.” 
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Here’s a simple and clever way to build a motorized cart for kids: power it with two 18V cordless drills. The drills friction-drive the cart’s front wheels via two 3/4-inch sanding drums, and you drive and steer the thing by pulling the drills’ triggers, one with each hand. Two fully charged drill batteries will run the cart for about 45 minutes of play time. Thanks Paul! 
How to make a war driving box – “It’s very easy, but this is not a step by step HOWTO, only a guide to build your own box. To start, you need a small up and running OpenBSD System on an Intel based System. This Sytem can run on in VMWare or on a older PC System (I use a 500 Mhz Pentuim System with 4 GB HD and 128 MB Ram)” – Thanks Jason! 
Great news, not only does the nano play