From Wikipedia’s entry on Super Balls.
Wham-O Executive Vice-president Richard P. Kerr said, “Each Super Ball bounce is 92% as high as the last.
Will it ever stop bouncing?
Geometric sequences and series anybody?
edit:
Amazon review of a superball:
What’s the bounce return rate?
Fellow Empire State rep Kate Nowak requested answers to the following in her post: Tell Me Why You Blog.
1. What hooked you on reading the blogs? Was it a particular post or person? Was it an initiative by the nice MTBoS folks? A colleague in your building got you into it? Desperation?
I got...
From Tech Crunch. Must watch video.
Harvey Mudd is known as one of the most elite science, engineering and mathematics colleges in the world. But historically, its computer science department hasn’t exactly been known as a paragon of gender diversity — in 2006, only 10 percent of Harvey Mud...
Yet another cool image from the Visualizing Math Blog.
I was wondering if I could recreate this graph in Desmos. Here’s what I was able to make.
It was difficult to find a way to keep the tangent line the same length, although I bet a parametric form of the line would work better tha...
Take 17 minutes out of your day and watch Adam Spencer talk about the largest known prime (found in January of 2013). Amazingly engaging.
http://www.ted.com/talks/adam_spencer_why_i_fell_in_love_with_monster_prime_numbers.html
They’re millions of digits long, and it takes an army of mathemat...

Awesome cat photo from misadventures in HR.
If a cat could fill out a bubble sheet, and left parts II, III, and IV blank (assumption: cats can’t write in english) then the following is based on the 2013 June Regents scoring scale:
1 in 36,000 cats would pass the Integrated Algebra Regents...
From Car Talk.
RAY: Here it is. Everyone, almost everyone remembers from his or her days in school the Pythagorean Theorem.
TOM: Yes.
RAY: A squared, plus B squared, equals C squared. And there are numbers like three, four and five; five, 12, 13 which satisfy that little equation. And man...
A student made this today (day 2 of scratch). Too cool. Keep watching.

From The Daily Dot:
To date, there is no known shortcut to quickly factor large integers into primes. It has never been proven that no such shortcut exists. We’ve just never found one.
If the unfactorable nature of these large integers doesn’t interest you, consider that it has been the re...