Reader RBS mentioned a site with some great data on vacuum tubes: TubeBooks.org
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Michael Z. Williamson (SurvivalBlog’s Editor at Large) spotted this: Mind Blown: Remote Control Sturmgewehr 44 In Syria
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What’s so special about John Moses Browning?
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Lee M. spotted this: Fifty Free Farmstead eBooks
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My novel Expatriates is now available for Nook e-reader owners.
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H.L. sent: Meanwhile in Sudan: Fuel riots, a hiring spree of ex-Soviet air mercenaries and preparations for war