Tag Archives: drone

Control joints in concrete basement slab

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We are building a house and I have been learning a bit more about concrete lately. You may know the old saying ‘there is only one sure thing with concrete, it WILL crack’. 😉 Of course the trick is getting it to crack where you want to 🙂 ‘Control joints’ are cuts made in the concrete so that hopefully when the slab cracks it will follow the pre-made cut. This is the control joint layout that I came up with:

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SkyGrabber Review [updated with screenshots and download]

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If you’ve read about the security vulnerability of US military drone planes, like the Predator,  you probably wanted to checkout the Russian  SkyGrabber software to see what all the fuss is about. Unfortunately, their site seems to be down due to all the traffic. Hopefully the military (or the company that builds the drones) will fix the vulnerability soon! UPDATE 2: download links for Skygrabber link #1, link #2 (mirror) UPDATE 1. Here is a screenshot of the Skygrabber program

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