background preloader

How to build a Tesla Coil

How to build a Tesla Coil

Basic Electronics {*style:<b> Get a quick start by scrolling down to the introduction below this menu table. Basic Electronics - Course Table You are at the best, free online "Basic Electronics Course". {*style:<b><b>Maybe you already know some basic electronics and want to test yourself to see exactly how much you do know. </b></b>*} {*style:<b>Explanation of AC and DC currents. </b>*} {*style:<b><b><b> P - I*V </b></b></b>*} {*style:<b>Watch the video . If you don't have a clue as to what electrical current and voltage are - read on. DC Theory Part 1 - DC Theory part 2 {*style:<b> </b>*} More book recommendations. There is another (and less expensive and practical) method of learning basic electronics. It is hands-on by doing simple projects. Get the MAKE: Electronics (Learn By Discovery) book below. You will also need some electronic parts available from Radio Shack or a good junk box. {*style:<b><b>Combined resistance of two resistors in parallel: </b></b>*} <b><b>Black </b></b> <b><b>Brown </b></b> <b><b>Red </b></b>

Origami Airplanes 77 Brain Hacks to Learn Faster, Deeper, and Better Source: Online Education Database If someone granted you one wish, what do you imagine you would want out of life that you haven't gotten yet? For many people, it would be self-improvement and knowledge. New knowledge is the backbone of society's progress. Great thinkers such as Leonardo da Vinci, Thomas Edison, Benjamin Franklin, Albert Einstein, and others' quests for knowledge have led society to many of the marvels we enjoy today. Your quest for knowledge doesn't have to be as Earth-changing as Einstein's, but it can be an important part of your life, leading to a new job, better pay, a new hobby, or simply knowledge for knowledge's sake — whatever is important to you as an end goal. Life-changing knowledge does typically require advanced learning techniques. Here are 77 tips related to knowledge and learning to help you on your quest. 1. 2. 4. 5. Balance 6. 7. 8. 9. 10. 11. 12. 13. 14. Recall Techniques 15. 16. 17. Visual Aids 18. 19. 20. 21. 22. Verbal and Auditory Techniques 24. 25.

How to Convert a Computer ATX Power Supply to a Lab Power Supply Edit Article Edited by Abizarl, Krystle C., Jack Herrick, Vertent and 42 others Computer power supplies cost around US$30, but lab power supplies can run you $100 or more! By converting the cheap (free) ATX power supplies that can be found in any discarded computer, you can get a phenomenal lab power supply with huge current outputs, short circuit protection, and reasonably tight voltage regulation on the 5V line. On most power supply units (PSUs), the other lines are unregulated. Ad Steps 1Look online or at your local computer store for an ATX computer power supply, or dismantle an old computer and remove the power supply from the case.Ad 2Unplug the power cable from the power supply and turn off the switch on the back (if there is one). 13 Plug the power cable into the back of the power supply and into an AC socket. Tips You can use your power supply 12V output as a car battery charger! Warnings If you suspect the power supply is damaged, do not use it!

antenna basics Antennas, to quote a friend, are one of life's eternal mysteries. "All I'm totally certain of is that any antenna is better than no antenna and the antenna should preferably erected as high and be as long as is possible or desirable". Here we will discuss the very basics of antennas including the the amazing terminated tilted folded dipole antenna. Each type of antenna will eventually have its own page. LAST MODIFIED: Sunday, 23-Jun-2013 12:55:29 PDT Please don't forget to bookmark this valuable electronics tutorial site! Authored by Ian C. Find us on Google+ What are the basics of antennas? Antennas, to quote a friend, are one of life's eternal mysteries. The basic antenna The most basic antenna is called "a quarter wave vertical", it is a quarter wavelength long and is a vertical radiator. This type of antenna relies upon an "artificial ground" of either drooping radials or a car body to act as ground. Antenna Polarisation Antenna Impedance The quarter wave vertical antenna The Yagi antenna

Apple’s Middle finger: It’s Pointed at You Let’s get this clear right off the start: Apple makes some absolutely fantastic products. The issue is not with the quality of their products, but the attitude and manner in which the company operates. They are giving their customers the middle finger, and for some reason the customers are thanking them for it. I make the argument that it doesn’t have to be this way. If we want Apple to stop treating their customers with disrespect, we need to stop praising them for doing so. Apple makes luxury products. Since we have you here, be sure to check out our blog for tips on where to find the best USA online casino. To embed this full infographic (600×7581) select all the text below then hit Ctrl-C to copy. <p><img src=” by <a href=” Oak Online Casino</a>. Mike Brunson Google Plus

Top 10 Things You Can Upgrade with a Little Electronics Hacking it is a skill to do a good solder joint, it comes with LOTS of practice. so most people who rarely do it will ever get good at it. Bingo. Of course, part of the issue is having a soldering iron at the right temp with a properly tinned tip. Newbies aren't using soldering stations but a cheap iron they got at rat shack (You have questions? We have deer-in-the-headlights... erm... answers!). I don't expect to ever master tricky stuff like smts or even multilayer pcbs so I'm not much better then a newbie, anyway - and I totally suck at sweating pipe joints. Ah, well... SMT is actually a bit better than through-hole once you get the hang of it.

Free-Energy Devices, zero-point energy, and water as fuel Hard Disk Drive Magnets For Wind Turbines Obtain super strong magnets from old hard disk drives to use in wind turbine alternators home > windThe most expensive parts of a wind turbinealternator are the magnets and the enamelled magnet wire. In a previous article we have introduced cheap and easy to make PVC wind turbine blades. Hard Disk Drive Magnets 50% of the world's neodymium magnets are currently used in computer hard disk drives (HDD) with each HDD typically containing two magnets. Extracting the magnets from an old hard drive is very easy - usually just a small selection of screwdrivers is required. This can be difficult - the easiest way is to put one corner of the backing plate into a bench vice and bend the other corner of the plate using a pair of vice grips. The following short video shows the full process from opening the hard disk drive, extracting the magnets on their backing plates, to removing those backing plates to leave just the magnets ready to be used.WARNING! Neodmium Magnets in Hard Disk Drives wind

The Making of Arduino For Banzi, this is perhaps the most important impact of Arduino: the democratization of engineering. "Fifty years ago, to write software you needed people in white aprons who knew everything about vacuum tubes. Now, even my mom can program," Banzi says. "We’ve enabled a lot of people to create products themselves." Not all engineers love Arduino. To fuel greater adoption of Arduino, the team is exploring how to integrate it more deeply into the education system, from grade schools to colleges. But spreading the Arduino gospel is only part of the challenge. Arduino has also created its own cottage industry for DIY electronics. Because the team can’t afford to stock hundreds of thousands of boards, they instead produce anywhere from 100 to 3000 per day at a manufacturing facility near Ivrea. The Arduino team is now earning enough to support two of its members as full-time employees and is making plans to bring even more circuit board power to the people.

Beginners Guide Beginners Guide to Electronics by Martin T. Pickering Last updated on November 23, 2008 This book gives simplified explanations of how some electronic components work in a circuit. I first became interested in electronics when I was age 10 (as long ago as 1961). ©2008 Martin T. What's the Difference between A.C. and D.C.? How does a Resistor Work? All the colours for 5% tolerance resistors: How do Diodes Work? How do Transistors Work? Abbreviations Although we use the Greek symbol Omega W to represent “Ohms” it is frequently written as “R”. How does a Capacitor Work? What does a capacitor look like? How do Inductors Work? The Relay Bread Board and building a LED Flasher Building the LED Flasher Astable Multivibrator using two transistors

The Fakeproject Corporation of America Presents: A Cheap, Easy, and Scandinavian WiFi Antenna. HI INTERNETS! This page is about something I did in Moscow in 2006. I answered many questions about the project (including "IS IT REAL OMG") here. I just moved to Moscow, to a nice flat in the center. There's supposed to be DSL here, but, well, there isn't. So, I decided to take matters into my own hands. Costs: Electrical tape, 9 Rubles. According to my measurements, the "Soare" napkin ring is capable of a 5-7dB signal boost, when the ceramic antenna element of the WiFi adapter is placed at the focal point. After some further testing, I found that removing the plastic casing of the WiFi adapter gave an additional signal boost (and made it easier to place the antenna). I'm uploading from this apparatus now, hunched over my laptop in my kitchen. Daniel Reetz.

Related: