Pulsed power

Pulsed power is the science and technology of accumulating energy over a relatively long period of time and releasing it very quickly, thus increasing the instantaneous power.

Steady accumulation of energy followed by its rapid release can result in the delivery of a larger amount of instantaneous power over a shorter period of time (although the total energy is the same). Energy is typically stored within electrostatic fields (capacitors), magnetic fields (inductor), as mechanical energy (using large flywheels connected to special purpose high current alternators), or as chemical energy (high-current lead-acid batteries, or explosives). By releasing the stored energy over a very short interval (a process that is called energy compression), a huge amount of peak power can be delivered to a load. For example, if one joule of energy is stored within a capacitor and then evenly released to a load over one second, the peak power delivered to the load would only be 1 watt. However, if all of the stored energy were released within one microsecond, the peak power would be one megawatt, a million times greater. Examples where pulsed power technology is commonly used include radar, particle accelerators, ultrastrong magnetic fields, fusion research, electromagnetic pulses, and high power pulsed lasers.

Pulsed Power was first developed during World War II for use in Radar. Radar requires short high power pulses. After the war development continued in other applications leading to the super pulsed power machines at Sandia National Laboratories (above).

Triple-threat method sparks hope for fusion

The secrets to its success are lasers, magnets and a big pinch.

The Z machine at Sandia National Laboratories in New Mexico discharges the most intense pulses of electrical current on Earth. Millions of amperes can be sent towards a metallic cylinder the size of a pencil eraser, inducing a magnetic field that creates a force — called a Z pinch — that crushes the cylinder in a fraction of a second.

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DIY - Halloween Costume Round Up 

Below you will find a full list of past Halloween costume tutorials I have made in the last few years. Most of the tutorials come in video format and included a full list of materials and detailed instructions on how you can re-create the costumes yourself. I will be posting a whole new set of costume tutorials starting tomorrow, but I hope this helps inspire your halloween costume in the meantime. Happy Crafting! 

XOXO - Drea 

Here is a full list of EDC inspired costume tutorials that may come in handy this Halloween too: 

Inside The Z Machine, Where Scientists Turned Hydrogen Into Metal  

“20: Magnetic strength, in mega gauss, of the Z machine—20 million times greater than Earth’s magnetic field.” 

For 80 years, researchers theorized that hydrogen could transform into a metal. This year, scientists at Sandia National Laboratories finally proved it. Read how they did it at popsci.com. Image credit: Randy Montoya; Courtesy Sandia National Laboratories

Robots are getting more and more advanced these days. They can mop floors, assist with daily living tasks, pour beer… but can they rock your face off? It turns out that they can.

Z-Machines is a new band in Japan composed of robots created by students at Tokyo University. Mach (center) plays lead guitar with 12 picks and 78 fingers. Cosmo (left) plays keyboard and shoots lasers from its eyes. Ashura (right) is on drums and uses 21 sticks.

More info: http://bit.ly/122UgTK

Video: http://bit.ly/12tha6L
Photo credit: Koji Sasahara