STEP 1 - WRAP RIBBON: Take the ribbon and wrap it around a glass. Mark where the ribbon overlaps itself. Image caption, STEP 2 - CUT CIRCUMFERENCE: Cut the ribbon at the point where it overlaps. You ...

Time for a much needed makeover. I have always thought you were a bit on the scruffy side. Hmm, not convinced these are the best guys for the job though. But, no no no. Give it a go. First, you'll ...

Beth Py-Lieberman - Author, The Object at Hand: Intriguing and Inspiring Stories from the Smithsonian Collections Every year, the celebration of Pi Day (March 14 is 3.14) grows more ambitious. Math ...

In the mid-20th century, we began launching satellites into space that would help us determine the exact circumference of the Earth: 40,030 km. But over 2000 years earlier, a man in Ancient Greece ...

Abstracts of the Papers Communicated to the Royal Society of London, Vol. 6 (1850 - 1854), pp. 273-275 (3 pages) ...