February 2012
7 posts
January 2012
20 posts
1 tag
“Each tree had 56 oranges. If 8 slaves pick them equally, then how much would...”
– A math question on a test at a Georgia school (via iseriaqueen)
Hey I have one..
If white people enslaved black people for 500 years and paid them nothing for their contribution to the country, how much does America owe Black Americans today?
I’ll wait.
(via howtobenoladarling)
If white...
1 tag
December 2011
26 posts
3 tags
On July 29th, 2011, the US Treasury Department showed that the United States had an operating cash balance of $73.3 billion USD.
At the time, Apple’s recent financial results put its reserves at $76.4 billion USD.
Apple has more money than the United States government.
(via BBC)
♥ on Ti-84
smohworld:
Isomorphismes: Things I've written that are meant... →
isomorphismes:
Er, this is probably too late for most of the students revising for exams. Sorry, I forgot that happens this time of year. I used to be a good teacher, I swear!
If it isn’t too late, I hope these short posts make useful study aids:
How to multiply matrices.
Determinant of a matrix…
Proof: isomorphismes: A beautiful depiction of a... →
isomorphismes:
A beautiful depiction of a 1-form by Robert Ghrist. You never thought understanding a 1→1-dimensional ODE would be so easy!
What his drawing makes obvious, is that images of Phase Space wear a totally different meaning than “up”, “down”, “left”, “right”. In this…