In Search of the Bogus Coins RAY: We have seven stacks of coins, each with 100 coins. Real coins weigh ten grams, and phony coins weigh 11 grams. We’re going to weigh the coins on an analytic scale, which works just … Continue reading
Monthly Archives: April 2011
Looking up at the ceiling of Westminster Abbey in Henry VII’s Lady Chapel. No questions, just thought it was cool.
Neat: (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 … Continue reading
These 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?
The 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 … Continue reading
What shape? Why?
What 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 … Continue reading
Alright, 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.
Well? How many oranges to run an LED? A laptop? A TV? A Prius? This one is just asking for a hands on demo.
Also 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, … Continue reading