Robert Larson 800-2875 Center Finder
April 26, 2011, 12:00 amNeat: (from Make: Online)
If you’ve ever struggled to locate the center of a circular plate or a piece of round stock using a ruler or a square, you know it can be a tricky proposition.
But this cleverly-designed gauge from Robert Larson Woodworking Tools makes short work of the job, and...
Math Pic: Radiator Design
April 26, 2011, 12:00 amThese awesome heating radiators were in the flat (apartment) that we stayed in.
I want to make one more. How much pipe do I need to bring to the bending machine?
Math Pics: Underground Carriages
April 25, 2011, 12:00 amThe following is the first of a few pictures that I took while on spring break in London.
This is a flyer that is talking about the improvements to the London Underground. The Summer Olympics are coming next summer, so they are trying to increase the capacity.
So, how many carriages per train a...
Sterling
April 19, 2011, 12:00 am
Math Photos: Cliffs of Moher
April 15, 2011, 12:00 amAlright, last Ireland photo for a while (p1 and p2).
If O’Brien’s tower is 22 ft tall, how tall are the Cliffs of Moher? The most useful (is it?) topic in math: proportions.
Giant Gummy Bear #WCYDWT ?
April 15, 2011, 12:00 amWhat questions come to mind? Maybe it’s because it’s the day before spring break, but I’m having trouble coming up with good stuff. Is this worthy of the #wcydwt tag?
Features & specs:
- Dimensions: 9.5″ x 5.5″ x 3.5″
- Equivalent to 1400 regular-size gummy bears
- Weighs approximately 5 p...
Tropicana #WCYDWT
April 14, 2011, 12:00 am
Well? How many oranges to run an LED? A laptop? A TV? A Prius? This one is just asking for a hands on demo.
Math Photos: Giant’s Causeway
April 14, 2011, 12:00 amAlso found in Northern Ireland is the Giant’s Causeway, an amazing place to find basalt columns (whatever they are 😉 )
“Unreal” formation, students always say it looks fake. I’ve used these photos in the polygons angles unit for geometry, but I’m sure there are other uses.
Math Photo: Northern Irish Arch
April 13, 2011, 12:00 amI got the idea for this “Math Photo” series from Mr. Honner. I’ll post images of mathematical stuff from my archives from time to time. Why not?
Here is an arch that I found near Cushendall, Northern Ireland, on my honeymoon. Is it parabolic? Or some other kind of arch?
Möbius Transformations
April 6, 2011, 12:00 amFrom Boing boing and linked article:
Abstraction lies at the heart of mathematics. It makes math powerful, but at the same time, it can make math hard to understand. Abstraction makes math simultaneously beautiful and austere, useful and esoteric.
But a picture can tame the mad monster of...