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Indigodruid
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As one who had historically bought into the myth that St. Patrick "driving the snakes from Ireland" was a metaphor for the forcible genocide of the Druids, I found this article interesting.

Happy Cú Chulainn day!
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Indigodruid

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 #UI
 
This is a stunningly brilliant.  I love everything from the UI design choices to the works themselves.   

PS I am running a new workstation with a high end graphics card so your mileage may vary.
Long Live Synesthesia
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Indigodruid

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Indigodruid

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foflmao
 
The tautological clock

This humorous clock reminds me of the concept of a vector bundle in mathematics. To form a vector bundle over a space X, we associate a vector space (such as k-dimensional Euclidean space) to each point of X in such a way that the spaces fit together to form another space of the same type as X. What this clock is doing is associating a clock to each time of day, and then fitting those together to form another clock.

More specifically, I think this clock is reminiscent of the concept of a tautological bundle, which appears in the following context. The set of k-dimensional subspaces of an n-dimensional vector space forms a space called a Grassmannian, whose points are the k-dimensional subspaces. If we work over the real or complex numbers, the Grassmannian has the structure of a smooth manifold, which means that, within an n-dimensional space, it is possible to morph k-dimensional subspaces into each other in a smooth way. One can then form the tautological bundle over the Grassmannian by using the vector spaces given by the points of the Grassmannian itself! This sounds almost like a mathematical joke, and it is more or less the same joke that the clock in the picture is making.

The clock face shown is a discrete object in the sense that it only displays its configurations at intervals of one hour. However, vector bundles are continuous objects, and the analogy above suggests the following construction of a continuous version of the clock. For this, we need a three-dimensional clock in which the small clock faces are inserted into the rim of the large clock face at right angles, instead of being placed flat on it. This could be used to show the continuous motion of the clock hands over a 12-hour period. 

To make it easier to see what is going on, we could just keep track of the tips of each hand using fluorescent lighting. The continuous tautological clock would then have two coiled, illuminated rings running around its circumference: a larger, more tightly coiled ring showing the positions of the minute hand during a 12-hour period, and a smaller, more loosely coiled ring showing the positions of the hour hand during the same 12-hour period. It might not be a very useful timepiece, but I think it would look interesting as a work of art.

Is that the time? I should stop: it's almost 12-o'clock-o'clock.

Relevant links

Grassmannians have applications to video-based computer recognition of faces and shapes, as well as to particle physics. More information on Grassmannians can be found here: http://en.wikipedia.org/wiki/Grassmannian

Wikipedia on vector bundles: http://en.wikipedia.org/wiki/Vector_bundle

Wikipedia on tautological bundles: http://en.wikipedia.org/wiki/Tautological_bundle

I don't know where this picture came from originally, and doing a reverse image search produces a large number of hits. I found it via +Maximilian Montserrat.

#mathematics
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Indigodruid

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offend all the geeks  :)
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Bwahahaha
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Indigodruid

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Phys.org: Life 'not as we know it' possible on Saturn's moon Titan. http://google.com/newsstand/s/CBIw_KvixCA
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Indigodruid

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Current State.  Sunny.  Breezy.

Hat tip to +Paul Lewis 
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Indigodruid

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This is just plain fascinating,  There are only a few fundamental folds in our genome "loops, domains, and compartments", and "epigenetics is origami".
 
This is an amazing piece of research and a wonderful video explaining it. It significantly adds to my understanding of molecular genetics over what I was taught in school.
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very kool+
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:)
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very kool++++
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Wow. The future is here. I have been following nanotech for twenty plus years. The idea of using DNA as a potential platform especially in medical applications has been around for some time, but this looks like the real deal, a designed machine that detects cancer cells and then reconfigures itself to deliver an antibody payload. Something to watch for sure.

As someone who lost his father to leukemia, I wish the first trial patient all the best.

PS. That picture is nothing like the actual thing. 
Dr. Ido Bachelet of Bar-Ilan University announced that the first clinical trials may soon begin on the nanorobots he has developed to fight cancer. The nanorobots, which can be injected into patients, can identify and kill cancer cells without affecting healthy cells. Medical nanorobots are programmable cell-sized machines that can be introduced in a living organism, where they interact with each other and with the cells of the host to perform m...
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Artist, poet, philosopher, and eclectophile.
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I am motivated by Truth (ideas, concepts and principles that effectively model Reality), and am most happy when manipulating formal systems.
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