- The Engines of Our Ingenuity: Main Page
- The Engines of Our Ingenuity is a radio program that tells the story of how our culture is formed by human creativity. Written and hosted by John Lienhard and other contributors, it is heard nation…
- Paraboloid – Wikipedia
- a hyperbolic paraboloid is a surface that may be generated by a moving line that is parallel to a fixed plane and crosses two fixed skew lines. This property makes it simple to manufacture a hyperb…
- Hyperboloid structure – Wikipedia
- Hyperboloid structures are architectural structures designed using a hyperboloid in one sheet. Often these are tall structures such as towers where the hyperboloid geometry’s structural strengt…
engineering 4 kids 