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Stool tower. Dreams Really Do Come True: A Cloud That Rains Real Tequila - Geekologie. These are a couple shots and videos of the Tequila Cloud installed in Berlin, Germany by the Mexican Tourism Board to encourage tired-of-the-rainy-winter Germans to vacation in the land of sun and tequila.

Dreams Really Do Come True: A Cloud That Rains Real Tequila - Geekologie

The cloud sculpture uses ultrasonic humidifiers to vibrate tequila at a frequency that turns it into a mist, which then cascades out of the cloud and into the mouth or shot glass of anybody waiting below. Trying to get drunk in a hurry and don't have time to stand around collecting tequila mist? No worries, they also installed a tap that pours straight tequila. Now you're talking! And by talking i mean slurring horribly. Keep going for the video. Oscilloscope Music - Pictures from Sound. Jaw-Dropping, IC-Free Pong on an Oscilloscope. Pong may not be much anymore, but it’s the granddaddy of all video games, and there’s still a lot to learn by studying its guts.

Jaw-Dropping, IC-Free Pong on an Oscilloscope

And what better way to do that than by having it all laid out before you as you play? All it takes is 200 discrete transistors and two large handfuls of passives tacked to a piece of copper clad board to get a version of Pong executed without a single chip that’s playable on an oscilloscope. Clearly a labor of love, if not an act of temporary insanity, [GK]’s realization of Pong is a sight to behold. Every scrap of it is circuits of his own design, executed dead bug style, apparently because [GK] enjoys life on hard mode. The game itself is surprisingly playable and you can even play against the machine. Shut Up and Say Something: Amateur Radio Digital Modes. In a recent article, I lamented my distaste for carrying on the classic amateur radio conversation — calling CQ, having someone from far away or around the block call back, exchange call signs and signal reports and perhaps a few pleasantries.

Shut Up and Say Something: Amateur Radio Digital Modes

Dragon Eye of Sauron Tutorial. Paul: A Robot and its Ball. [Jochen Alt]’s Paul is one of the coolest robots of its type, and maybe one of the coolest robots period.

Paul: A Robot and its Ball

Personality? Check. Omniwheels? Check. Weapons from nail and scrap metal - All. BOLTR: A Drawing ROBOT. Reclaimed Corner Desk - All. Turn cell phone and tablet in 3D hologram. Have you seen this yet?

Turn cell phone and tablet in 3D hologram

I mean, have you seen the actual hologram, for real? If not, it will take you about 20 minutes to get your own pyramid shaped hologram display. Update: If you want to try a even easier way, check out our other Instuctable that shows how to simply print one. Although it is not real 3D because it is 4 times a 2D images, the result is simply amazing. The original idea comes from American Hacker. Considering that a lot of people are asking for dimensions for bigger devices such as new iPhone 6S Plus or tablets, we created templates for several popular devices. You could also create you own holographic video, keeping in mind that all areas aound the subject need to remain black (the use of a green screen helps) and paste the image 4 times in the screen using a video editing program.

Anyone who would like to see the step by step en français, c'est par ici! Oak MDF Display Shelves. - All. I used Iron-on edge banding, mainly for speed on this.

Oak MDF Display Shelves. - All

Using this kind of banding is very simple and quick. Using a HOT iron and leaving it time to heat up between sides is important. Hacked CCFL Inverter becomes an Arc Lighter. [GreatScott!]

Hacked CCFL Inverter becomes an Arc Lighter

Needs to light off fireworks with an arc rather than a flame, because “fireworks and plasma” is cooler than fireworks and no plasma. To that end, he attempted to reverse engineer an arc lighter, but an epoxy potted high-voltage assembly thwarted him. Refusing to accept defeat, he modified a CCFL inverter into an arc lighter, and the process is pretty educational. With his usual impeccable handwriting and schematic drawing skills, [GreatScott!] DIY Thermal Imaging Done Low-Tech Style. [Niklas Roy] has always wanted to try out thermal imaging and saw his opportunity when he received one of those handheld IR thermometers as a gift.

DIY Thermal Imaging Done Low-Tech Style

But not content with just pointing it at different spots and looking at the temperatures on the LCD display, he decided to use it as the basis for a scanning, thermal imaging system that would display a heat map of a chosen location on his laptop. He still wanted to to be able to use the IR thermometer as normal at a later date so cutting it open was not an option. Instead he firmly mounted a webcam to it pointing at the LCD display. He then wrote software on his laptop to process the resulting image and figure out what temperature was being displayed. Once he got that working, he next put the thermometer on a platform with servos connected to an Arduino for slowly rotating it in the horizontal and vertical directions, also under control of the software on his laptop.

Relays Calculate Square Roots. After seeing an exhibit of an old relay-based computer as a kid, [Simon] was inspired to build a simple two-relay latching circuit.

Relays Calculate Square Roots

Since then, he’s been fascinated by how relays can function to do computation. He’s come quite a long way from that first latching circuit, however, and recently finished a huge five-year project which uses electromechanical relays to calculate square roots. The frame of the square root calculator can hold up to 30 identical relay modules, each of which hold 16 relays on PCBs, for a total of 480 relays. The module-based setup makes repair and maintenance a breeze. Numbers are entered into the computer by a rotary dial from an old phone and stored in the calculator’s relay memory.

Projector HID arc light mounted into a desk lamp. Bookcase/Wine Rack/Guitar Holder. FPV Virtual Reality Arduino Controlled Tracked Robot. Have you ever tried to look at the world from a different point of view?

FPV Virtual Reality Arduino Controlled Tracked Robot

With this project you can control a tracked robot with your brainwaves or with a joystick while you are watching its camera's live-stream in a virtual reality glass. This is an all terrain vehicle, that means that you can control it on snow, sand, any kind of ground, wet surface and of course indoors. It is powered by two 18650 lithium-ion batteries with a capacity of 2600 mAh. These are connected in series so the maximum voltage is 8.4 volts, that ensures the seamless operation. Can climb hills that up to 35-40 degrees. Build a Modern School Desk with Hairpin Legs. Acoustic Tractor Beam. Extreme Scissor Lift Shoes. Long-range Electric Longboard Outlasts Rider. What could be better than a holiday ride past the palm trees and blue waters of a Mediterranean resort town? Perhaps making that ride on a long-range electric longboard of your own design will ice that particular cake. And when we say long range, we mean it – an estimated 25 miles.

The only reason [overclocker_kris] couldn’t come up with an exact number in the test drive seen below is that he got too tired to continue after mile 20. With a bit of juice left in the 64-cell battery pack, built from 18650s harvested from old laptops, the board was sure to have another five miles in it. A custom molded underslung carbon fiber enclosure houses the battery pack and electronics, including the receiver for the handheld remote control and the ESCs for the two motors. I made a 240px LED zebrawood table with touch sensors. Marking Knife from Saw Blade. Ultra Simple Magnetic Levitator. Want to build a magnetic levitator in under two hours? With a total of 7 parts, including the coil, it just cannot get simpler than what [How-ToDo] shows here!

It is not only an extremely simple circuit, it also has the advantage of using only discrete components: a MOSFET, hall effect sensor, diode and two resistors, that’s it. The circuit works by sensing the position of the levitating magnet, using the hall effect sensor , then turns the coil on and off in response via the MOSFET. The magnet moves upwards when the coil is energized and falls down when it is not. This adjustment is made hundreds of times a second, and the result is that the magnets stays floating in mid air.

This is the kind of project that can make a kid get interested in science: it combines easy construction with visually amazing behavior, and can teach you basic concepts (electromagnetism and basic electronics in this case). Rotary Telephone Becomes Stylish Lamp. The vintage aesthetic is more popular than ever, and while things like rotary phones aren’t particularly useful anymore, there’s a lot of fun to be had using them in new and inventive ways. For this project, [Sander] built an attractive table lamp out of a Siemens rotary phone. Switched off, the lamp appears to be nothing more than a phone with its handset floating in midair. However turn the dial, and LEDs mounted in the receiver begin to glow. Taking things a step further as good hackers do, [Sander] used a motorised potentiometer to control the LED brightness with a NodeMCU board featuring the ESP8266.

This allows the LEDs to be dimmed either by hand, or by a smartphone connected over WiFi, without the dial getting out of sync. By using a dual H-bridge setup, the NodeMCU is able to both control the motorized pot as well as generate an AC signal to activate the original bell in the phone, which adds a whole lot of nostalgia points. Arm Thrusters, For Underwater Super Powers! Most of us will have spent the idle hours of our youth while sitting in a room where a teacher was standing at the blackboard explaining iambic pentameter or the Diet of Wurms, daydreaming about the amazing exploits we could have created if only we had an Evil Lair stuffed with all the tools our fertile imaginations demanded.

[James Bond] would have had nothing on us, our personal [Q] branch would have ensured we would have had the coolest gadgets on the planet. As grown-ups we have some of the resources to make this a reality, yet somehow we’ve never made good on the dream. We spend our time creating IoT clocks or novelty electronic Christmas ornaments, and Mr. Making-Of Sea Shell Sand Clock. The year is coming to an end, the Holiday season is approaching. In case you are looking for a nice present: I have completed my version of a sand clock: a clock writing the time into sand: Sandclock If you are interested to build your own version, I have documented the different steps with tips and tricks… Make Your Own Nuclear Battery. RetroPie - Retro-gaming on the Raspberry Pi.

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