cassann515

2spookyy:

voiceactresskurutta:

randomobsession:

perlockholmes:

sweetmoonbeam17:

theinturnet:

Did a group of mathematicians just sit around drawing lines before stumbling upon how some combination of the intersections could be used for multiplication?

MAGIC

I had to try this, and I am just sitting here awestruck. This is brilliant.

This is as mind-blowing as Misha’s shoe-tying lesson.

I will never understand how or why people come up with this stuff.

THIS IS SO MUCH EASIER WHY DIDN’T WE GET TAUGHT THIS IN AMERICAN SCHOOLS?

But when you get sums like 9878 x 9789 it’s gets really complicated. Try Napier’s bones.