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Search Results for “clock”

By Phil Todd
Spline Clock
This clock is made from 4 pieces of parabola.  Drag the red 'control points' to change its shape.

Tags: parabola, spline, clock

By Phil Todd
Nicomedes Conchoid Clock
This device is illustrated in Eustocius Commentaries on Archimedes (well.. not the clock part of it, I admit.)

Tags: clock, conchoid, nicomedes

By Phil Todd
hyperbolic clock with explanation
The hyperbolic clock is all about the parametrization.  Press the explain button to see why it moves the way it does.

Tags: hyperbola, clock

By Phil Todd
Reflection Clock
Press the Reflect button to reflect the triangle in the minute hand. Press again to reflect the result in the second hand. Can you describe the motion of the second reflected image?

Tags: Clock, transformation, reflection, composition

By Phil Todd
Crazy Clock
I remember seeing a 4 bar linkage clock on the wall of a mechanical engineering professor. Here is my take on that.  (Green points can be dragged)

Tags: 4-bar-linkage

By Phil Todd
reflected clocks
A reflection for Hogmanay- a look at time forwards, backwards and upside down.

Tags: clock, reflection, transformation

By Phil Todd
Four Bar Linkage
You can drag the vertices of the shadow linkage to alter its geometry. Can you create a linkage which draws a figure 8?  How about the letter D?  How close to a straight line can you get? If you like this, you might like my 4 bar linkage clock app.

Tags: 4-bar-linkage, curve

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