O.K., Thanks, I get it now. The bottom of the panel is one of the small (2ft2) sides. BTW, the superscript for ft2 was dropped during editing of the original article, so the areas are shown as ft instead of ft2.
I'm confused. In the example shown, there are three (3) dimentions for the panel area (2ftx4ftx1ft), but this should yield a volume (ft3), not ft2, as shown in the example. Assuming a rectangular prism with six (6) sides, there are two sides with 8ft2 each,two with 4ft2 each, and two with 2ft2 each, for a total surface area of 28ft2. Also, which side is the bottom surface that you are ignoring? Did I miss something? Please help.
The 100% solar-powered airplane Solar Impulse 2 is prepping for its upcoming flight, becoming the first plane to fly around the world without using fuel. It's able to do so because of above-average performance by all of the technologies that go into it, especially materials.
With major product releases coming from big names like Sony, Microsoft, and Samsung, and big investments by companies like Facebook, 2015 could be the year that virtual reality (VR) and augmented reality (AR) finally pop. Here's take a look back at some of the technologies that got us here (for better and worse).
Good engineering designs are those that work in the real world; bad designs are those that don’t. If we agree to set our egos aside and let the real world be our guide, we can resolve nearly any disagreement.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.