All we need is some investment capital and a buyer willing to take $35 billion worth of Virgin Mobile airtime off our hands at face value.
Appreciation Geometry
Happy 5-13-12 Day!
In honor of today’s date, 5/13/12, I honor one of my favorite triangles: the 5-12-13 triangle.
Of course, one reason this is a such a nice triangle is because it is a right. We can easily see that the side lengths satisfy the Pythagorean Theorem
Another reason I like this triangle so much is because it plays a part in another of my favorite triangles: the 13-14-15 triangle!
Appreciation
Turntable Harmonograph
I’m not sure if this technically qualifies as a harmonograph, but the images produced by this cool apparatus definitely remind me of Lissajous curves.
The video of this device in action, from Robert Howsare, is definitely worth a look.
An interesting challenge would be to come up with the parametric equations of these curves based on the angular velocity of the two turntables, much like what can be done with actual harmonographs.
Application Appreciation Teaching
Life Imitating Math Textbooks
I’ve never see a restaurant go so far to ensure its customers understand the geometric and mathematical ramifications of their decisions.
Somewhere out there, the author of terribly contrived math textbook questions is saying “See! Places like this do exist!”.
Appreciation Photography
Tiling Reflections
As previously noted, there is plenty of mathematical fun to be had at Ikea!
And if taking pictures of cool tilings gets dull, why not trying tiling the plane yourself!