Posts filed under “Science”

Age of the Earth

So cool:

via U.S. Geological Survey

Category: Digital Media, Science

Global Warming? What Evidence Do You Have?

I’m no expert, but a century worth of data shows the change in global temperatures: > Global Annual Mean Surface Air Temperature Change Source: NASA ~~~ Global Air Temperature Source: Climatic Research Unit : Information sheets ~~~ Global Temperatures of the Last Five Centuries Source: NOAA Paleoclimatology Program ~~~ Global Glacier Thickness Change Source: The…Read More

Category: Data Analysis, Digital Media, Science, Technical Analysis

Fractals: Hunting the Hidden Dimension

Nova discusses fractals, and the significance for various disciplines, such as Physics, mathematics and even markets:

Click for Video

In five parts:

FRACTAL BASICS
They’re odd-looking shapes you may never have heard of, but they’re everywhere around you—the jagged repeating forms called fractals. If you know what to look for, you can find them in the clouds, in mountains, even inside the human body.
running time 11:36

THE MANDELBROT SET
In 1958, Benoit Mandelbrot begins using computers to explore vexing problems in math. They help him to understand repeating patterns in nature in an entirely new way. He coins the term fractal to describe them and develops the Mandelbrot set in 1980.
running time 9:51

ON THE DEFENSE
Though many colleagues initially scorned Mandelbrot’s work, his mesmerizing fractal images launched a popular culture fad. More importantly, his book The Fractal Geometry of Nature explained how his ideas could be applied in the real world. Mandelbrot’s ideas inspire an ever-increasing number of applications, including the fractal antenna.
running time 10:40

FRACTALS IN THE BODY
Fractal patterns turn up everywhere in biology, from the irregular rhythm of the heart to basic eye function. The fractal nature of such physiological processes, which obey simple mathematical rules, offers hope of better diagnosis and treatment of problems as well as new insights into how such processes work.
running time 10:15

NATURE’S FRACTAL NATURE
With carbon dioxide levels around the world rising, a team of American scientists travels to a rain forest in Costa Rica. They employ fractal geometry to analyze how much CO2 the rain forest can absorb.
running time 7:52

(Full transcript here)

Category: Mathematics, Quantitative, Science, Video

Hurricane Tracker

Category: Science

Randy Pausch Last Lecture: Achieving Your Childhood Dreams

Carnegie Mellon Professor Randy Pausch (Oct. 23, 1960 – July 25, 2008) gave his last lecture at the university Sept. 18, 2007, before a packed McConomy Auditorium. In his moving presentation, "Really Achieving Your Childhood Dreams," Pausch talked about his lessons learned and gave advice to students on how to achieve their own career and personal goals.

Randy finally lost his battle to cancer early Friday morning . . .

For more, visit www.cmu.edu/randyslecture.

 

Previously:
Randy Pausch, Final Lecture
http://bigpicture.typepad.com/writing/2008/05/randy-pausch-re.html

Randy Pausch Reflects   
http://bigpicture.typepad.com/writing/2008/05/randy-pausch-re.html

Category: Psychology, Science, Video

Manhattanhenge

Category: Science

Quote of the Day: Knowledge, Science, Enlightenment

Category: Financial Press, Politics, Science

Iowa Floodwaters

Category: Commodities, Science

World Clock

Category: Science, Web/Tech

Active Denial System: non-lethal, directed-energy weapon

Category: Science, War/Defense, Web/Tech