_-= Uzzors2k =-_ Project Site. This is a simple magnetic levitator which suspends objects a set distance below an electromagnet. The physics behind it is to simply provide a magnetic force which equal and opposite to the gravitational force on the object. The two forces cancel and the object remains suspended. Practically this is done by a circuit which reduces electromagnet force when an object gets to close, and increases it when the object is out of range. Infrared Magnetic Levitator This circuit works by comparing the signals from the sensors with the first op-amp and sending out a voltage proportional to the difference or "error".
The error signal is then sent through a compensation network which acts a high-pass filter, allowing quick changes in error to pass easier than slow changes. Construction Details The top detector is a reference detector and the bottom one senses when an object is in levitating position. Troubleshooting Levitated Objects Youtube Video Hall-Effect Magnetic Levitator Other Magnetic Levitators. Wireless Power. A few years ago MIT created a system for transferring power wirelessly. They transmitted power over a two-meter distance, from the coil on the left to the coil on the right, where it powers a 60W light bulb. Back in 2006, this was a pretty cool thing. You can only imagine what the implications of something like this would be. Well, unlike most of us, we do not have the time or material goods like MIT has. So i have made this simple and easy to follow Instructable, so all of you good people can experience the joy of wireless power. Inductive Coupling uses magnetic fields to transfer power.
In my research I found, that to transfer power in very complicated. It all starts with the transmitter. The secondary coil has a 0.02 uF capacitor. The primary coil creates a magnetic field, when another coil is placed near it, energy will be induced into it. Be in mind that i could not get a hold of a 0.02uF capacitor so i used two 0.01uF capacitors connected together.
Miley Cyrus's 'Artistic Porno' Is Actually Awesome. Miley Cyrus's 'Artistic Porno' Is Actually Awesome How'd I stumble onto this gem? I swear it was the most innocent google search! I was curious if any popular females out there were also currently trying to pull off the top-knot undercut. And, viola! I was immediately inspired by the strange repetition, geometric designs, and ink patterns in this video clip featured on her Bangerz tour.
Following my clue down the rabbit hole, I discovered Jones's original self portrait version of the video (which is stunning) and the rest of her amazing, cut-and-paste style art. It was love at first sight. So much fantastic inspiration don't you think? Via Quentin Jones + Vimeo. LED Throwies. LED throwies consist of only a few inexpensive parts and can be made for ~$1.00 per Throwie. You can reference the parts list below or download the attached spreadsheet for more info on parts, part's numbers, vendors and application notes. Part: 10mm Diffused LED Vendor: HB Electronic Components Average cost: $0.20 avg per LED Notes: Cost reductions for larger quantities. Comes in red, blue, amber, white in both diffused and clear. Diffused works better than water clear for the Throwie application. HB has even created a Throwies packs page with deals on 10mm LEDs and lithium batteries! Part: CR2032 3V Lithium Batteries Vendor: CheapBatteries.com Cost: $0.25 per battery Notes: Cost reductions for larger quantities.
With the 2032 Lithium batter, depending on the weather and the LED color, your Throwie should last around 1 -2 weeks. Part: 1-inch wide Strapping Tape Vendor: Your local hardware store Cost: $2.00 for one roll Notes: One roll will make many throwies. Electronic Drum Kit Shirt. Calling IN: A Less Disposable Way of Holding Each Other Accountable | By Ngọc Loan Trần I started having conversations on this practice of “calling in” after attending Race Forward’s Facing Race Conference in Baltimore, MD in 2012. Facing Race was a gathering of thousands of people working on advancing racial justice. The space was full of energy, commitment, and a ride-or-die-and-put-it-all-on-the-line mentality for making sure we’ve got our bases covered in this fight against racism and dismantling white supremacy. What happens when thousands of people who all “get it” come together and everyone knows something about “the work”?
We lose all compassion for each other. All of it. I witnessed all types of fucked up behavior and the culture that we have created to respond to said fucked up behavior. Most of us know the drill. But what happens when that someone is a person we know — and love? And what does it mean for our work to rely on how we have been programmed to punish people for their mistakes? (continued below) So, what exactly is “calling in”? Crop top DIY. ¿Tienes unos cuantos retales y te gustaría hacer tu propio crop top? Pues sigue estos pasos para conseguir la réplica del modelo de Balmain clonado por Zara! Es la ocasión perfecta para aprovechar todos esos restos de tela que tienes guardados. El del tutorial está hecho reciclando las piernas de un jean que convertí en short, ¿con qué vas a hacerlo tú? Materiales: TelaPapel de periódico para hacer el patrónVelcroCentímetroTizaRotuladorTijerasAlfileresAguja e hilo o máquina de coser Paso a paso: Cortar el patrón en papel. Pasar el patrón a la tela y cortar todas las piezas Doblar los tirantes por la mitad, coser y dar la vuelta.
Unir dos parejas de partes centrales y coser. Hacer el dobladillo superior a las dos piezas centrales y las laterales. Coser las partes centrales a los tirantes como se ve en la imagen. Coser las partes laterales a los tirantes como se ve en las imagenes. Cortar la parte central por la mitad y hacer el dobladillo en el bajo de toda la pieza. Un abrazo Marta. The Open Source School Of Innovation. The open source industry have been at the forefront of open collaboration and innovation for sometime, and fostering innovation and collaboration remains a central selling point of most social business vendors. Despite the best will in the world however, recent research revealed that most internal social networks are regarded as failures by their owners. The open source movement have a proven track record in enabling a disparate community to collaborate and produce wonderfully innovative products. The following are three key lessons you can learn from how the open source industry go about their stuff. 3 ways you can innovate like the open source movement (1) Modularize the content – You want to create as few barriers to participation as possible.
It also allows individuals with unique talents to see the part of the project where they can best apply those talents. That project demanded that any participants made their discoveries open to the community to view and build upon. Swedes Develop Invisible Bike Helmet. Mapping Emotions On The Body: Love Makes Us Warm All Over : Shots - Health News. People drew maps of body locations where they feel basic emotions (top row) and more complex ones (bottom row). Hot colors show regions that people say are stimulated during the emotion. Cool colors indicate deactivated areas.
Image courtesy of Lauri Nummenmaa, Enrico Glerean, Riitta Hari, and Jari Hietanen. Hide caption toggle caption Image courtesy of Lauri Nummenmaa, Enrico Glerean, Riitta Hari, and Jari Hietanen. People drew maps of body locations where they feel basic emotions (top row) and more complex ones (bottom row). Hot colors show regions that people say are stimulated during the emotion. Image courtesy of Lauri Nummenmaa, Enrico Glerean, Riitta Hari, and Jari Hietanen. Close your eyes and imagine the last time you fell in love. Where did you feel the love? When a team of scientists in Finland asked people to map out where they felt different emotions on their bodies, they found that the results were surprisingly consistent, even across cultures.