Brain-Rain.

Science in action. And also, goofing off.

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Posts tagged Math

Oct 16
“Whatever — the soup is getting cold.”

Last sentence of a mathematical theorem in Leonardo da Vinci’s notebook, 1518 (x)

davincisdemons

(via somecreativedomain)

(via stahl-ebooks)


Oct 15

Oct 6
matthen:

Unrolling these circles fills a triangle with base 2 π r and height r (where r is the radius of the filled disk). Such a triangle has area π r². This does not serve as a complete proof for why this is the area of a circle, but can give you some intuition for why it should be. [code]

matthen:

Unrolling these circles fills a triangle with base 2 π r and height r (where r is the radius of the filled disk). Such a triangle has area π r². This does not serve as a complete proof for why this is the area of a circle, but can give you some intuition for why it should be. [code]

(via quantumaniac)


Oct 3
curiosamathematica:

A hyperbola of one sheet can be traced by a straight line, making it a ruled surface. You can make a beautiful real-life model by connecting two circles with some elastic strings, and rotating one of the circles; here’s a virtual Wolfram Demonstration.

curiosamathematica:

A hyperbola of one sheet can be traced by a straight line, making it a ruled surface. You can make a beautiful real-life model by connecting two circles with some elastic strings, and rotating one of the circles; here’s a virtual Wolfram Demonstration.

(via the-science-of-time)


Sep 22
matthen:

A roulette traced from rolling an ellipse inside a circle. [thanks] [code]

matthen:

A roulette traced from rolling an ellipse inside a circle. [thanks] [code]

(via visualizingmath)


Sep 17
ioanaiuliana21:

Land of mathematics

ioanaiuliana21:

Land of mathematics

(via physicistsneedlovetoo)


Sep 10

geometrymatters:

The geometry of diatoms, desmids and other algae.

http://www.micromagus.net/microscopes/pondlife_plants01.html

(via visualizingmath)


Sep 8
d3lt4:

"Fibonacci Sequence #3" Art print
Leonardo Fibonacci is an Italian mathematician from the 12th century.

d3lt4:

"Fibonacci Sequence #3" Art print

Leonardo Fibonacci is an Italian mathematician from the 12th century.

(via visualizingmath)


Sep 7
visualizingmath:

geometrymatters:

Geometry Matters:
Various nature elements that abide by geometric laws and construction patterns.
© Geometrymatters,2014

Reblogged for the Visualizing Math followers that are fans of Sacred Geometry.

visualizingmath:

geometrymatters:

Geometry Matters:

Various nature elements that abide by geometric laws and construction patterns.

© Geometrymatters,2014

Reblogged for the Visualizing Math followers that are fans of Sacred Geometry.


Aug 24
planetaryfolklore:

beesandbombs: hexagons / stars

planetaryfolklore:

beesandbombs: hexagons / stars

(via spacequakes)


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