republished
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Why Screws Tighten Clockwise
One of the six simple machines, a screw is nothing more than an inclined plane wrapped around a center pole. While today screws come in standard sizes, and typically are tightened by turning clockwise (and loosened by turning counterclockwise), this is a recent invention. A great example of how things that seem simple can be…
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iPhone 6 And 6 Plus Have The Best LCD Screens You Can Buy
A key element for a great smartphone has always been a truly innovative and top-performing display, and the best leading edge smartphones have always flaunted their beautiful high tech displays. Apple iPhones (and iPads) were up until recently at the leading edge of mobile displays: they were early adopters of high performance IPS LCDs, the…
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Why Military Tech (Sometimes) Doesn’t Evolve
Consider the SR-71 Blackbird. It was meant to be used as a high altitude, high velocity recon aircraft. It was, and still is, one of the USAir Force’s greatest accomplishments, technologically speaking.
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How Long Humans Can Live In Space — And What Happens If We Stay Too Long
How long can humans live in space? We don’t know the answer to that. But every crew that resides on the International Space Station provides us information that we use to adjust our protocols and extends that period of time.