Overhead openings, such as skylights and flat roof windows ... the originally specified Kalwall translucent fiberglass-reinforced polymer (FRP) panels were replaced with polycarbonate panels ...

But if we add "slightly used" and "experimental" to the equation, beautiful and modern examples emerge, like this 2009 Kitfox ...

The northern glass frog, which ranges from southern Mexico to Ecuador, even conceals its blood to render its body more translucent, hiding nearly 90 percent of its red blood cells inside its ...

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