Science

High Voltage Happiness? How to Make a Negative Ion Generator « Fear Of Lightning. The Circuits Parts There are two simple circuits for creating negative ions (there are more, but I'm only covering the easiest and most effective). The first circuit uses power from the mains, a voltage multiplier, and a metal antenna. The second circuit uses a flyback transformer, a driver circuit, and a metal antenna. The first circuit is generally more effective, but the second can run on lower voltages, making it portable with fewer parts necessary. Circuit 1: To build circuit one, you'll need a 33nf 1000V polyester capacitor (1x), 68nf 1000V polyester capacitor (1x), 3nf 1000V polyester capacitors (17x), 1N4007 diodes (20x), and 3.3M 1-watt resistors (3x).

You could even hack a fan into an antenna by attaching metal nails to the blades, and a rotary conducting surface to produce a " spinning corona " effect, and also circulate the negative ions with the fan itself. Note: The circuit diagram specifies 220 volt AC input. Circuit 2: (extracted from Wireless Transfer of Energy ) Master the Power: How to Shock People with Your Fingertips « Fear Of Lightning. The circuit schematic is represented in the (incredibly detailed) drawing below: The generator charges you up like a capacitor, then when you come in contact with a grounded object (person), the voltage is discharged through them.

I found it was best to put the generator, battery and switch inside an old shoe, like so (the "stripped" wire is ground): Of course, to get it inside the shoe it's necessary to do a little drilling... Once everything is installed, take some tin foil and fasten it to the bottom of the shoe, in contact with the stripped ground wire mentioned above. The picture also shows some copper foil, but any conductive metal will work. Finally, punch a hole in the sole of the shoe and run the high voltage output from the negative ion generator through. And you're done! The Phobia List. VERY INTERESTING UNKNOWN FACTS.

Create a State of Chaos. High speed video reveals the bizarre physics of an ordinary water droplet. Improve Your Google Search Skills [Infographic] Don’t limit yourself to just plugging in simple search terms to Google; check out this infographic and learn a search string search or two.

You don’t need to limit yourself to searching just for simple strings; Google supports all manner of handy search tricks. If you want to search just HowToGeek.com’s archive of XBMC articles, for example, you can plug in site:howtogeek.com XBMC to search our site. Get More Out of Google [HackCollege via Mashable] Jason Fitzpatrick is a warranty-voiding DIYer who spends his days cracking opening cases and wrestling with code so you don't have to. If it can be modded, optimized, repurposed, or torn apart for fun he's interested (and probably already at the workbench taking it apart). Reaction_version5.swf (application/x-shockwave-flash Object) Amazing 3D Printer Video. 10 Common Misconceptions Dispelled. Can The Human Brain See Quantum Images?

The strange rules of the quantum world lead to many weird phenomena.

One of these is the puzzling process of quantum imaging, which allows images to form in hitherto unimagined ways. Researchers begin by creating entangled pairs by sending a single laser beam into a non-linear crystal, which converts single photons into entangled pairs of lower frequency photons, a process known as parametric down conversion. A continuous beam generates a series of pairs of entangled photons. Next, they send the entangled photons towards a pair of detectors. Each member of an entangled pair by itself fluctuates in random ways that make its time and position of arrival uncertain.

Use one of the detectors to receive just one half of the entangled photons and the result is a blur, smeared by the process of randomness. But use two detectors to receive both sets of photons and the uncertainties disappear, or at least are dramatically reduced. Of course, there are some significant experimental challenges. Physics I: Classical Mechanics - Download free content from MIT.