# Search Results for “construction”

##### Equilateral triangle construction

How Euclid constructs an equilateral triangle, using just a set of compasses.##### Ellipse Incenter Locus

What is the locus of the incenter of the triangle formed by the string in the "two pins and a piece of string" construction of an ellipse?##### Twisted Savonius Wind Turbine Full Geometric Model (without traces/surfaces)

The Twisted Savonius Wind Turbine has promising applications for rooftop usage, but its high cost has kept it unfeasible for widespread adoption. The Twisted Savonius Geometric Modeling project explored the geometric properties of the turbine's shape, and proposed a more efficient method of construction and geometric design as a result. This is the complete side view "3d" model of the turbine. It models an extremely 3-dimensional shape by using ellipses to represent tilted circles. Changing**X**changes the rotation of the turbine (in operation).

**Theta**represents the twist angle between the top and the bottom of the turbine.

**T**controls the parametric location of the vertical surface - tracing it "fills in" the blade's surface. Learn more about this side view model. Visit the Geometry of the Twisted Savonius Wind Turbine website.