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Posts tagged math


something i learned today:

the ratio between the size of one digit of one of your fingers and the next digit of the same finger is roughly Φ, the golden ratio. Their lengths line up in an approximate way with sequential fibonacci numbers, because as the fibonacci sequence progresses the ratio between sequential numbers approaches Φ.  i illustrated this in that image using an arbitrary unit of pixels and the grid in photoshop.

but the real cool part is that because of this, when you curl and uncurl your fingers, the path described by a fingertip is pretty close to a perfect golden spiral! what sweetly built machines we pilot over the earth

(via anengineersaspect)


Alejandro Guijarro - Momentum (2010-12)

“The artist travelled to the great quantum mechanics institutions of the world and, using a large-format camera, photographed blackboards as he found them. Momentum displayed the photographs in life-size. 

Before he walked into a lecture hall Guijarro had no idea what he might find. He began by recording the blackboard with the minimum of interference. No detail of the lecture hall was included, the blackboard frame was removed and we are left with a surface charged with abstract equations. Effectively these are documents. Yet once removed from their institutional beginnings the meaning evolves. The viewer begins to appreciate the equations for their line and form. Color comes into play and the waves created by the blackboard eraser suggest a vast landscape or galactic setting. The formulas appear to illustrate the worlds of Quantum Mechanics. What began as a precise lecture, a description of the physicist’s thought process, is transformed into a canvas open to any number of possibilities.”

1. Cambridge (2011)

2. Stanford (2012)

3. Berkeley I (2012)

4. Berkeley II (2012)

5. Oxford (2011)

i guess my teacher was right… math is art.

(via attaif-deactivated20140801)

these would look great in the loft apartment i don’t have.

i’ll just have to like them from afar.


Minimal Posters - Six Women Who Changed Science. And The World.


Look! In the Sky! It’s a cloud! It’s a number! It’s… the first 1000 digits of Pi?

On the afternoon of September 12, 2012, artist ISHKY, with Stamen Design, launched Pi in the Sky, a project that used skywriting to create quarter-mile tall digits at 10,000 feet over the San Francisco Bay Area. It took a team of five synchronized skywriters “equipped with dot-matrix technology” to create the first one-thousand numbers of the infinite order of pi (3.14159, etc.). The airplanes made a 100-mile loop around the Bay Area, which created a temporary piece that was 150 miles long. It was created as part of the 2012 ZERO1 Biennial.

There’s a Kickstarter for everything.

(Laughing Squid via Gizmodo

What would happen if you fired light into a bottle and could film it at 1,000,000,000,000 frames per second? If you slow it down by a factor of 10 billion you can watch it. It’s incredible.

Do you watch TEDTalks?? You probably should if you like learning.

Learn more about the TED organization

Did you know it was so complicated?


Signals from Distant Mars

A follower recently asked me about the communications technology used to help maneuver the curiosity rover. Well here’s a part of how they did it.

In this picture of the antenna DSS-63 with a diameter of 70m (20 floor building) is pointing the Curiosity rover 8 hours before landing on the surface of Mars (Also pictured).

This antenna is located in Madrid and it is part of the Deep Space Network (DSN) property of NASA JPL. At the moment of the picture, the antenna was busy doing Ranging and Doppler measurements of the signals traveling from the spacecraft in order to calculate its position. At the end of this session the calculated position is radioed back to the Curiosity so it can make its EDL using only its IMU and radar.

this other dish complex was used for the moon landings, and it’s for sale!

Three Girls Discover their Love of Science

March Madness Bracketology: The Science

Experts hope to predict winners of the NCAA basketball tourney using a bit of math, science, stats and luck.

keep reading

Why Science Majors Change Their Mind 

Roughly 40 percent of students planning engineering and science majors end up switching to other subjects or failing to get any degree.

Politicians and educators have been wringing their hands for years over test scores showing American students falling behind their counterparts in Slovenia and Singapore. How will the United States stack up against global rivals in innovation? The president and industry groups have called on colleges to graduate 10,000 more engineers a year and 100,000 new teachers with majors in STEM — science, technology, engineering and math. All the Sputnik-like urgency has put classrooms from kindergarten through 12th grade — the pipeline, as they call it — under a microscope. And there are encouraging signs, with surveys showing the number of college freshmen interested in majoring in a STEM field on the rise.

But, it turns out, middle and high school students are having most of the fun, building their erector sets and dropping eggs into water to test the first law of motion. The excitement quickly fades as students brush up against the reality of what David E. Goldberg, an emeritus engineering professor, calls “the math-science death march.”