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Nothing less than human made lightning. The massive fields generated by resonance between pairs of stepped up induced capacitors create potential differences greater than the resistance of air between the coil and a nearby conductor. This allows fractal currents to flow as the air itself conducts and ionizes.Although Tesla coils are largely created for fun by dedicated enthusiasts, they originally had a real purpose in mind. Tesla figured that he could create a wireless electrical grid and went as far as to build a tower on Long Island that would be its first transmitter. The idea was never realized, however in Russia really large scale wireless power networks were actually tried, as can be seen in this list.Vote for your faves.

16 crazy tesla coils

Thanks to an intrepid group of urban explorers, some of the most magnificent hidden engineering triumphs that lie, hidden, beneath the streets of the worlds cities are being recorded and posted on underground (no pun intended) websites.Here are some of our favorite sewers and drains, from Paris tourist attraction sewers to Londons Escher-like, arched, Victorian Gothic drains, to still working ancient Roman systems and the infamous giant storm drains beneath Tokyo. Vote for your faves.

Spectacular Sewers

Ray guns originated in the US in the 30s, from shows like Buck Rogers. What makes them a particularly interesting object is that despite, for all practical purposes, having never existed, there is an almost endless variety of designs for toy ray guns, from around the world.Here are some of the best we could find. Most are for sale, and are posted without description, since the images speak for themselves.

23 stunning ray guns

Sometimes, making things simpler makes things more complicated. Like telling the time on willfully minimalist watches. Watches can be minimalist and functional, but the examples here put form over function where the aesthetic gain may be questionable. There is one of these we actually really like, but we are not telling which.

Unreadable Minimalist Watches

I started this list as a Thanksgiving homage to American innovation via its greatest inventor. Reading more about Edison and his strange obsession with things like filming electrocutions, using alternating current, of everything from small animals to people and even an elephant, just to try and put people off the rival AC system, managed to put me off him. So as an act of revenge here are some of his less successful, stranger inventions from concrete phonographs to what became the tattoo machine and a ghost detection instrument. Happy Thanksgiving anyway.

9 Strange Edison Inventions

Bel Geddes is the industrial designer most associated with the streamline style, an aerodynamic form than was as much about aesthetics as wind resistance. These designs actually look better than more aerodynamic forms and as such were used by Geddes for things that didn't have to move at all, such as his streamlined school desk. Geddes started out as a theatrical designer then made a series of model cars and prototypes for trains and planes, including the incredible airliner number 4 - a 1929 proposal for a transatlantic boat plane carrying 450 passengers and an army of staff including a musicians and entertainers. But the other thing that Geddes created was his daughter, who was Miss Ellie in the TV series, Dallas.

12 Norman Bel Geddes creations

From double amputee, Aimee Mullins, who modeled for Alexander McQueen on a pair of beautiful hand-carved wooden prosthetic legs made from solid ash to amputee soldiers who would not have survived without advances in combat medical care and who are returning to active combat at a rate which is 7 times higher than a generation ago (2% - 16%) to athletes such as Oscar Pistorius, whose carbon fiber prosthetics help him compete at a level which calls into question the separation of 'special' athletic competition, the way we view prosthetics and disability is changing. 3d printing, advanced composite materials are enabling this from an aesthetic and design standpoint as much as the more obvious technical advances through electronics and bio feedback systems.

Aesthetic Prosthetics

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Design – D-roll Laptop Concept

April 6th, 2009 link to (permalink)

Check out this cool laptop concept from designer Hao Hua. The D-roll Laptop is designed like an artists tube, which contains a roll up OLED screen and a cool slide out keyboard, it also has a mouse and a web camera which are used as the end caps for the case.

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