Posts Tagged ‘wow’
Folding Paper in Half 12 Times: impossible?
January 21st, 2011
Even After reading this I still don’t quite understand.
Britney Gallivan has solved the Paper Folding Problem. This well known challenge was to fold paper in half more than seven or eight times, using paper of any size or shape.
In April of 2005 Britney’s accomplishment was mentioned on the prime time CBS television show Numb3rs.
The task was commonly known to be impossible. Over the years the problem has been discussed by many people, including mathematicians and has been demonstrated to be impossible on TV.
For extra credit in a math class Britney was given the challenge to fold anything in half 12 times. After extensive experimentation, she folded a sheet of gold foil 12 times, breaking the record. This was using alternate directions of folding. But, the challenge was then redefined to fold a piece of paper. She studied the problem and was the first person to realize the basic cause for the limits. She then derived the folding limit equation for any given dimension. Limiting equations were derived for the case of folding in alternate directions and for the case of folding in a single direction using a long strip of paper. The merits of both folding approaches are discussed, but for high numbers of folds, single direction folding requires less paper.
The exact limit for single direction folding case was derived, based on the accumulative limiting effects induced by every fold in the folding process.
For the single direction folding case the exact limiting equation is:
Read the whole story here
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Amazing wallpapers – Animals
September 28th, 2010
Here are some amazing wallpapers you can use, today its animals.
Continue reading “Amazing wallpapers – Animals” »
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molecular nanobots
September 28th, 2009
While many in the nanotech establishment dismiss molecular nanobots as science f
iction many of the recent breakthroughs in nanobiotech point to the emergence of hybrid biomechanical nanomachines Molecular Nanobot in the Bloodstream In Japan photo-reactive nanocrystals are being developed for more efficient solar cell production. Rice University is developing methods that use the reactivity of nanoparticles to clean contaminants, especially biological contaminants from water. In agriculture, nano-sensors will be sprinkled on crops or soil to monitor temperature, water, salinity, nitrogen and disease. Robert Freitas is developing an artificial red blood cell able to deliver 236 times more oxygen to tissues than natural red blood cells.
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100 greatest throrems
February 23rd, 2009
The Hundred Greatest Theorems
The millenium seemed to spur a lot of people to compile “Top 100″ or “Best 100″ lists of many things, including movies (by the American Film Institute) and books (by the Modern Library). Mathematicians were not immune, and at a mathematics conference in July, 1999, Paul and Jack Abad presented their list of “The Hundred Greatest Theorems.” Their ranking is based on the following criteria: “the place the theorem holds in the literature, the quality of the proof, and the unexpectedness of the result.”
Have a look at what the 100 greatest theorems are.
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Great photo’s that tell a story
February 19th, 2009
This is just really amazing: These photo’s tell a story. Gives a new meaning to “a picture is worth a thousand words.”
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Endless interestingness
February 14th, 2009
Flickr has become very popular, and has had many sites use flickr. This is probably the best so far: It is a flash website that has all the photo’s of flickr, in one neat page. Its really endless.
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Blowing bubble – time warp
February 10th, 2009
Ever blow a bubble and it popped? ever think of what it looks like?
find out here:
Continue reading “Blowing bubble – time warp” »
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Shamwow
February 4th, 2009
This is not really anything amazing, but this is an ad for Shamwow, this guy can sell shamwow Shammy’s to anyone. Just listen to how fast he talks.
Continue reading “Shamwow” »
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