Latest Posts by notneimanmarcus - Page 2

Adding two identical waves, shifted by different amounts, to give a new wave. The waves interfere to either amplify each other, cancel each other out, or something in between. [more] [code]

56.839551,118.121181

Another animation of the fractal Harriss spiral. This exploits the plastic number (1.3247…) a number whose cube is itself plus one. This number is considered by some to be the forgotten cousin of the golden ratio (whose square is itself plus one).

0.207879576350761908546955619834978770033877841631769608075135…

Joel Tettamanti - Greenland

Ravensburg (Baden-Württemberg)

Mount Shasta, California

From the coldest cold to the hottest hot, here’s all the universe’s temperatures.

(from BBC Future)

Bonus question: What is hotter, a boiling tea kettle or an iceberg?

I made a gif animation of the Binomial Cube. :D

http://en.wikipedia.org/wiki/Montessori_sensorial_materials

http://hyrodium.tumblr.com/post/85901458594/do-you-know-the-maria-montessori-method-of-education

Visualizing sine and cosine waves from a circe.

A mathematics course is much more than a thrice-weekly regurgitation of algorithmic tools. It is a distilled presentation of centuries of concentrated effort by fellow humans, men and women motivated both by real-world problems and a sense of beauty and consistency

Charles Doran (via ixxra)

Milford Sound by Tim Jordan Photography on Flickr.

four-bar linkages, and how changing the length of the bars affects the motion in one particular case

Eleven Interactive Fractals in 2D & 3D

I don´t believe that  anybody feels the  way I do, about you now 

Title: Islandia

Map Maker: Abraham Ortelius

Place / Date: Antwerp / 1603

I’ve always assumed that history is fully as speculative a discipline as writing science fiction. Our narrative of history changes as we go along, and hundred years from now, the deep past—assuming that technology continues to emerge at the same rate—the deep human past that those people will be able to see will be quite unrecognizable to us.

William Gibson [x] (via edwardspoonhands)

The gif animation of folding the net of the tesseract(8-cell). ;-)

There are many kinds of the net of the tesseract.

http://hyrodium.tumblr.com/post/67134693288/hyrodiums-photostream-on-flickr-there-are-many

How much is time wrong around the world? [4000x2048] Source in comments

The planet Mars on September 25, 1977, as seen by the Viking 2 lander.

(NASA)

Iceland

If people do not believe that mathematics is simple, it is only because they do not realize how complicated life is.

(via brittbutterfly21)

Skógafoss

ellis-samizdat.tumblr.com (by Andrew ‘Samizdat’ Ellis)

Just something to think about:

"Look again at that dot. That’s here. That’s home. That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there-on a mote of dust suspended in a sunbeam." - Carl Sagan