Real Time Trends Network

Normal people throw away stuff when it breaks. But not people like us. Or, apparently, [NanoRobotGeek]. A cheap robotic dragonfly died, and he cannibalized it for robot parts. But he kept the gearbox hoping to build a new dragonfly and, using some brass rod, he did just that . The dragonfly’s circuitry uses a solar panel for power and a couple of flashing LEDs. This is a BEAM robot, so not a microcontroller in sight. You can see a brief video of how the dragonfly moves. Really, though, the neat part of this is the fabrication of the wings using soldered brass rods. The head has the flashing LEDs as eyes. The secret sauce, of course, is the gearbox. If you were going to replicate this project, you’d probably have to figure out your own gearbox modifications unless you just happened to get the exact same toy. In addition to LED eyes, the dragonfly also has a capacitor bank on its tail. This isn’t aesthetic. The wings run on a FLED-based solar engine circuit. The LEDs and the capacitor

For Fox and baseball fans, the happiest phrase in sports is “Game 7.” from CommaFeed - Real Time Trends Network https://ift.tt/2WwChdz via IFTTT

When it comes to hobby-level 3D printing, most of us use plastic filament deposited by a hot end. Nearly all the rest are using stereolithography — projecting light into a photosensitive resin. Filament printers have typical build volumes ranging from 1,000 to 10,000 cubic centimeters and even larger isn’t unusual. By contrast, SLA printers are often much smaller. A 1,200 CC SLA printer is typical and the cheaper printers are sometimes as little as 800 CCs. Perhaps that’s why [3D Printing Nerd] (otherwise known as [Joel]) was excited to get his hands on a Peopoly Phenom which has a build area of over 17,000 CCs. You can see the video review, below. He claims that it is even bigger than a Formilab 3L, although by our math that has a build volume of around 20,000 CCs. On the other hand, the longest dimension on the Peopoly is 40 cm which is 6.5 cm longer than the 3L, so maybe that’s what he means. Either way, the printer is huge. That’s nearly 16 inches which is big even for a filament

Lego – with an almost century-long history – has celebrated a lot of key anniversaries in its time. But this year falls fallow between key birthday touchpoints. Instead of commemorating a moment, its latest launch salutes the resident mayor of the toy box. Announced today, the plastic minifigure has been reworked into a new wooden, and upscaled, format. ‘We’ve never really paid homage to the classic minifigure in this way,’ says Sine Klitgaard Møller – a longstanding senior design manager at The Lego Group. ‘Our trend reporting tells us that there’s a real appetite with our dedicated fan base – and from the public at large – to see historic objects reconfigured.’  Few understand the appetites of the Lego community better than Møller, who has been with the organisation for 24 years, and highlights the family-feel of the company. Injecting an outsider perspective is playful homeware design specialists Room Copenhagen (which Lego has worked with as a licensed partner for many years). Tog

Though it’s really more apple cider weather here at Hackaday HQ, freshly-squeezed OJ is a treat that knows no season. Sure generates a lot of peel, though. Not something you think about when you’re used to buying it in jugs at the grocery store. What a waste, huh? Italian design firm [Carlo Rotti] teamed up with global energy company [Eni] to develop “Feel the Peel”, a 10-foot-tall real-time juice bar that celebrates the orange by using the entire thing . Fifteen hundred juicy orbs move single-file down the circular track toward their total destruction. One at a time, they are severed in half and wrung out by the machine, and their peels are dropped into a clear bin for all to see. Once the peels dry out, they are shredded, mixed with PLA, and fed into a delta printer that prints juice cups right there on site. This live process of reuse is pretty interesting to watch — check it out after the break. [Eni] touts this as completely circular, but that really depends on what happens to t

Trump lawyer Rudy Giuliani locked himself out of his iPhone in early 2017, and asked a commercial Apple Store employee to unlock it. from CommaFeed - Real Time Trends Network https://ift.tt/2oz7GQ6 via IFTTT

Through the weekend Twitter has been a-titter with news coming out of Saintcon, the annual security conference in Provo, Utah. Now that the weekend is over we can finally get our hands on full hardware and software sources for the curvy, LED-covered badge we’ve been salivating over and a write up by its creators [ compukidmike ] and [ bashNinja ]. Let’s dive in and see what’s waiting! Design This year’s badge is designed to represent a single tooth on a single rotor of an Enigma machine. The full function of an Enigma machine is quite complex , but an individual device has three rotors with 26 teeth each (one for each letter) as well as a keypad for input and a character display to show each enciphered letter. For reference, the back of the badge has a handy diagram of a badge’s place in the Enigma system. Reminiscent of the WWII device which the badge design recalls, each unit includes a full QWERTZ keyboard (with labeled keys!) and RGB “lampboard” for individual character outp

The animated Disney movie Coco inspired one writer to return to his mother’s family traditions and recreate his own Día de Muertos. from CommaFeed - Real Time Trends Network https://ift.tt/34cYW1c via IFTTT

Direct-to-consumer marketing is picking up steam, as readily accessible data makes it easier than ever for brands to reach their customers. But are companies using this data effectively?  Sean Surdovel, media product specialist for Taboola —a technology company that drives brands’ marketing results by targeting audiences when they are most receptive to new messages—took the stage at the Ad Age Next: Direct-to-Consumer conference on September 9 in New York to talk about the limitations of transactional marketing and the benefits of a full-funnel platform. Surdovel explained that while understanding your CPA is important, it's only one piece of the puzzle when it comes to business growth, especially given the number of marketing touchpoints required to generate a sale. The key to success is tying your digital efforts to content that will build value throughout your customer journey. The following creative strategies will help you optimize engagement and ROI at each stage of the

We’re just two weeks away from the fifth annual Hackaday Superconference, the single biggest gathering of hardware enthusiasts on at least one continent. It’s gearing up to be great, and we’re super excited for the opportunity to bring you such a diverse array of talks, workshops, and more. What makes Supercon so great? All the awesome people you meet there. One of them is [Ted Yapo], who joined the Hackaday writing crew this year after gracing our pages and winning our contests for so long. You might remember him as the guy who turned an innocent USB-to-serial adapter into an SDR transmitter , or as the guy who tried to jump-start a car with a coin cell . At last year’s Supercon, [Ted] gave a talk about dealing with cheap spectrum analyzers , which doubled as a live look into the article he wrote for the Hackaday Journal of What You Don’t Know . [Mike Szczys] caught up with [Ted] last year for a brief interview in the hardware hacking area, which you can catch after the break. [Ted

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You know you’re in for a treat when you are told that a lathe which can reach a resolution of one micrometer (1×10 −6 , a millionth of a meter, or 0.00004″ for people who love zeros) is ‘not hard to build’.  This is one of the opening statements in this video by [Dan Gelbart], as he walks the viewer through the details of a custom CNC lathe which he built. (Video embedded below.) As it’s a combined CNC lathe and grinder, it uses custom software he had developed specifically for the machine. Much of the high precision of the machine is courtesy of air bearings. All but two of the air bearings were made by [Dan], with the two surplus air bearings he used coming from machines used in the semiconductor industry. The bed of the machine is formed out of off-the-shelf reference granite, to which the other parts are epoxied, providing a stable base with well-defined dimensions. Though perhaps a few light years beyond most DIY lathe efforts, [Dan]’s videos nevertheless provide a treasure tr

The retailer said it will move forward with one bid, but is working for another deal before tomorrow morning to prevent stores from closing. from CommaFeed - Real Time Trends Network https://ift.tt/2q4Ycg2 via IFTTT

Talking to Sean Hannity, Donald Trump's son pretends he hasn't made bank off of his father's presidency. from CommaFeed - Real Time Trends Network https://ift.tt/2C122JA via IFTTT

For companies wanting to support the LGBTQ+ community, you are most welcomed. We need your partnership—truly! But, please consider some advice before jumping into the mix. from CommaFeed - Real Time Trends Network https://ift.tt/2Nqu86o via IFTTT

There are unfurling green leaves, twisted stems of light amber and petal-like swirls of rose pink – above which sits the more familiar silhouette of the upper bowl of a champagne glass. This collection of six glasses, titled Metamorphosis, were designed as part of a creative collaboration between French champagne house Maison Perrier-Jouët and Andrea Mancuso of Analogia Project. Each of the crystal glasses – all delicate in form, vibrant in colour and exquisitely crafted – were designed to reflect the essence of six different Perrier-Jouët cuvees, in a modern expression of the house’s rich Art Nouveau heritage. ‘This is a dialogue between nature, champagne and design,’ explains Milan-based Mancuso. ‘A glass can tell a story. I tried to create six glasses that would reflect the notes and elements associated with each cuvee.’ He adds: ‘green represents nature, I have used rose for the Rosé cuvees and amber evokes the colour of the champagne.’ Inspiration for the collection stemmed fro

The cult classic movie Office Space is a scathing critique of life for software engineers in a cubicle farm, and it did get a lot of things right even if it didn’t always mean to. One of those is the character of Tom Smykowski whose job is to “deal with the customers so the engineers don’t have to”. The movie treats Tom and his job as a punchline in a way, but his role is actually very important for most real businesses that rely on engineers or programmers for their core products. Engineers can have difficulty relating to customers, and often don’t have the time (or even willingness) to handle the logistics of interacting with them in the first place. Customers may get frustrated understanding engineers or communicating their ideas clearly to them. A person like Tom Smykowski is often necessary to bridge the gap and smooth out the rough edges on both sides, but in the Linux world there are very few Toms to rely on. The customers, or users, have to deal directly with the engineers in

One of his generation's most talented—and no-bullshit—actors on his career path, what he’s learned, and the project he's been obsessing over for 20 years. from CommaFeed - Real Time Trends Network https://ift.tt/3260KaJ via IFTTT

From the rainbow-bezel Daytona to the “Presidential” Day-Date, Rolex's gem-set watches are in class all their own. from CommaFeed - Real Time Trends Network https://ift.tt/34eCpBh via IFTTT

New case study from Ad Age Studio 30 examines the White Claw hard seltzer phenomenon. from CommaFeed - Real Time Trends Network https://ift.tt/2q6ld28 via IFTTT

On the whole, hackers aren’t overly fond of other people telling them what they can and cannot do with the hardware or software they’ve purchased. Unfortunately, it’s becoming more and more difficult to avoid DRM and other Draconian rules and limitations as time goes on. Digital “eBooks” and the devices that are used to view them are often the subject of such scrutiny, which is why [Joey Castillo] has made it his mission to develop a open hardware eReader that truly belongs to the user. [Joey] has been working on what he calls the “The Open Book Project” for a few months now, and he’s just recently announced that the first reader has been successfully assembled and powered up. As is usually the case, a few hardware issues were identified with this initial prototype. But it sounds like the device was largely functional , and only a few relatively minor tweaks to the board layout and components should be necessary before the hardware is ready for the masses. An earlier prototype, usin

Welcome to Ad Age’s Wake-Up Call, our daily roundup of advertising, marketing, media and digital news. If you're reading this online or in a forwarded email, here's the link to sign up for our daily newsletter. You can also get an audio version of this briefing on your Alexa device. from CommaFeed - Real Time Trends Network https://ift.tt/2BXvd0n via IFTTT

The reason you're not getting press is because you haven’t created a story worth telling. from CommaFeed - Real Time Trends Network https://ift.tt/2Py5IdS via IFTTT

Once the biggest beer in the world, 'the beer that made Milwaukee famous' urges 1950s drinkers to take it easy, recalling happier times for the brewer. from CommaFeed - Real Time Trends Network https://ift.tt/34i5XOe via IFTTT

In the market for a low-poly change to your look? Hate the idea of showing up for a costume party only to find out someone is wearing the same mask as you? Then this face changing front-projection mask may be just the thing for you. To be honest, we’re not sure just how much [Sean Hodgins]’ latest project has to do with cosplay. He seems to be making a subtle commentary about dealing with life in the surveillance state, even though this is probably not a strategy for thwarting facial-recognition cameras. [Ed Note: Or maybe it’s just Halloween?] The build consists of a Raspberry Pi and a pico projector of the kind we’ve seen before . These are mated together via a custom PCB and live inside a small enclosure that’s attached to the end of a longish boom. The boom attaches to the chin of 3D-printed mask, which in turn is connected to the suspension system of a welding helmet. Powered by a battery pack and controlled by a smartphone app, the projector throws whatever you want onto the m

The Sartfell Retreat nestles into a shallow hillside on the Isle of Man, its traditional drystone walls forming a continuity with the surrounding landscape and implying a strong sense of permanence and place. In fact, this is a house by the London-based practice Foster Lomas, the result of a lengthy planning process and an even more in-depth and extensive programme of restoring and enhancing the existing landscape and biodiversity.  The Retreat stands alongside an existing building, known locally as Cloud 9, and is set slightly lower down the hill and connected by a modest glazed link. Cloud 9 was included in the project and completely refurbished, inside and out, while the new building is defined by its thick drystone walls – up to 620mm in depth – which shield the interior from the landscape. A long run of ribbon windows in the main living space are set deep in the stonework, minimising solar gain but allowing low winter sun to flood into the space. Foster Lomas has gone to enormou

Playing classic games on the real hardware is an experience many of us enjoy, but sometimes the hardware is just a bit too retro for modern sensibilities. A case in point is the miserable monochrome LCD that was originally installed in the Amstrad PPC640 portable 8086 PC that [Drygol] recently picked up. He decided that his portable Amstrad sessions would be far more enjoyable if he swapped it out for a display that didn’t have 30+ years on the clock . To quell the complaints of any of the vintage hardware aficionados out there, it’s worth mentioning that the original LCD was actually damaged and needed to be replaced anyway. Granted [Drygol] could have tried to find a contemporary panel to replace it with, but looking at the incredible before and after shots of the modded PPC640, it’s hard to argue he didn’t make the right decision by throwing a modern display into the otherwise largely original computer. Getting the new LCD’s PCB ready for installation. [Drygol] says he picked up

Just because something is newer than something else doesn’t automatically make it better. Of course the opposite is also true, but when it comes to displays on bench multimeters, a fancy LCD display is no guarantee of legibility. Take the Hewlett Packard HP 3478A multimeter; the stock transflective display with its 14-segment characters is so hard to read that people usually have to add a backlight to use it. That wasn’t good enough for [cyclotronboy], though, who chose to completely replace the stock 3478A display with Nixie tubes . He noticed that with a little modification, six IN-17 tubes just fit in the window vacated by the LCD. He sniffed out the serial data stream going to the display with a collection of XOR gates and flip-flops, which let him write the code for a PIC18F4550. The finished display adds a trio of rectangular LEDs for the + and – indicators, and an HDLO-1414 four-character alphanumeric display to indicate units and the like. And the decimal points? Tiny neon bul

Syringes have all kinds of useful applications in the workshop, from injecting fluids to helping pick up tiny components. There’s always room for a bit of levity however, and [Tom Stanton] decided to have a play with some syringe rocket builds . The basic idea involves blocking the end of a syringe, and then pull the plunger to create a vacuum in the tube. When released, the plunger will rush forward from the atmospheric pressure counteracting the vacuum, hitting the end of the tube and launching the syringe forward. [Tom]’s initial attempts with small syringes were fun, but larger builds struggled with breakages, sealing issues, and excessive weight. Some more luck was had with a vacuum cannon build, which was able to launch a projectile to a decent height, albeit without a lot of stability. [Tom] wrapped things up by designing a small 3D printed launcher that fits 10mm syringes and lets you shoot them around the workshop with abandon. It’s fun to see the concept explored in detail

The longtime advertising and entertainment vet will help build out the streaming platform's in-house creative practice. from CommaFeed - Real Time Trends Network https://ift.tt/2ozAzvE via IFTTT

It’s set to launch in May 2020 with 10,000 hours of content; a cheaper ad-supported version is due in 2021. from CommaFeed - Real Time Trends Network https://ift.tt/2NnX5zX via IFTTT

Including news from Biscuit, Tool, Smuggler and Nexus. from CommaFeed - Real Time Trends Network https://ift.tt/2ph5AF5 via IFTTT

Ecclesiastes 1:9 reads “What has been will be again, what has done will be done again; there is nothing new under the sun.” Or in other words, 5G is mostly marketing nonsense; like 4G, 3G, and 2G was before it. Let’s not forget LTE, 4G LTE, Advance 4G, and Edge. Just a normal everyday antenna array in a Seattle parking garage. Technically, 5G means that providers could, if they wanted to, install some EHF antennas; the same kind we’ve been using forever to do point to point microwave internet in cities. These frequencies are too lazy to pass through a wall, so we’d have to install these antennas in a grid at ground level. The promised result is that we’ll all get slightly lower latency tiered internet connections that won’t live up to the hype at all. From a customer perspective, about the only thing it will do is let us hit the 8Gb ceiling twice as faster on our “unlimited” plans before they throttle us. It might be nice on a laptop, but it would be a historically ridiculous assumpti

Brightcove's Sara Larsen discusses how unique customer experiences are essential to driving growth. from CommaFeed - Real Time Trends Network https://ift.tt/36iWFn1 via IFTTT

The changes come amid continued sales woes for its biggest brands, which include Miller Lite and Coors Light. from CommaFeed - Real Time Trends Network https://ift.tt/2MX1hHU via IFTTT

A few important tips to help you breathe easier. from CommaFeed - Real Time Trends Network https://ift.tt/2PynvSe via IFTTT

The new season of BoJack Horseman proves the show is no longer fully about BoJack Horseman himself. That's a good thing. from CommaFeed - Real Time Trends Network https://ift.tt/2WAsuU9 via IFTTT

The surprising accessories you want (and need!) right now. from CommaFeed - Real Time Trends Network https://ift.tt/2q6htxm via IFTTT

There’s plenty of different methods to build a 3D scanner, with photogrammetry being a particularly accessible way to do it. This involves taking a series of photos from different angles to build up the geometry of the model. If you want to do this with something small, instead of a camera, just substitute a microscope! [NoseLace’s] LadyBug does just that. It’s a 3D scanner built in a very hacker fashion. The X-Y stage that moves the sample is from a KES-400a Blu-Ray drive, salvged from the original “fat” Playstation 3. The Z axis is then created using the linear stepper motor from the optical pickup of the same drive. A rotary stepper motor is added on to the Z-axis to allow the sample to be rotated. It’s all combined with a basic USB microscope to take the images, and a Raspberry Pi which handles running all the stepper motors with some add-on driver boards. [NoseLace] uses the device to create 3D models of insects, but it would work just as well with other small objects. The benef

‘I’m fascinated with what light does to architecture,’ says Peter Marino, swaddled in his signature leather — a taut vest, knee-pad adorned trousers and hat pulled down far over his a pair of practically opaque aviator sunglass. ‘What it does to sculptures, textiles , people.’ Marino is sitting, somewhat anachronistically, given the look, in a sumptuously silk-damask-lined room, beneath a Murano glass chandelier, in an ornately carved wooden throne that looks as if it’s lived in this particular palazzo since the day it was built. We’re in Venice, not far from San Marco Square, in the headquarters and family home of Rubelli , the fifth generation textiles company known for its Italian-made upholstery fabrics and interior furnishings. ‘I want light in all of my work, and the light on the water in the canals makes me absolutely crazy with joy’ But only the uninitiated might consider Marino out of place. Though he arrived in Venice to launch his first collaboration with Rubelli, his

Welcome to Ad Age’s Wake-Up Call, our daily roundup of advertising, marketing, media and digital news. If you're reading this online or in a forwarded email, here's the link to sign up for our daily newsletter. You can also get an audio version of this briefing on your Alexa device. from CommaFeed - Real Time Trends Network https://ift.tt/32276rD via IFTTT

Break down the silos, organize for success and prepare to lose control from CommaFeed - Real Time Trends Network https://ift.tt/36j1tc0 via IFTTT

Old Navy has tapped celebrities including Neil Patrick Harris for its holiday campaign, which was created with Chandelier Creative. from CommaFeed - Real Time Trends Network https://ift.tt/2BVISF4 via IFTTT

Alegra O'Hare, the new CMO at the Gap, talks about the brand's holiday campaign, retail trends like resale and on-demand delivery, and the increase in female marketing leaders. from CommaFeed - Real Time Trends Network https://ift.tt/2PuPa6z via IFTTT

Here's why TikTok, Twitch and Mixer will keep us captivated for the foreseeable future. from CommaFeed - Real Time Trends Network https://ift.tt/34bvcBS via IFTTT

Edelman and Weber Shandwick chief executives interview each other in no-holds-barred conversation. from CommaFeed - Real Time Trends Network https://ift.tt/2NpP6SN via IFTTT

In a continuation of its global rollout, Soho House has returned to Los Angeles with its third outpost, this time targeting the Eastside creative community. Setting up inside a 1916 warehouse building on Sante Fe Avenue, the House, with its sprawl of facilities, is the group’s largest property in North America, with a series of lounge, dining and meeting spaces - including two club floors - 48 lofty guestrooms, a sizeable gym, a courtyard café, and a rooftop pool, spread over seven floors. As expected, the interiors follow the Soho House blueprint, but with distinct touches that nod to the building’s history, including art deco notes from the time of its construction and 1970s details taken from its former life as a recording space. And so, original graffiti-emblazoned brick walls, exposed ceiling pipes and industrial pillars are softened with jewel-toned velvet sofas, potted indoor plants and shaggy rugs, while local artwork curated together with a series of downtown galleries can

Are you waiting for something that may never happen? Maybe it’s the end of your ennui, or the release of Half Life 3. While you wait, why not build a Godot Machine? Then you can diversify your portfolio and wait for two things that could happen today, tomorrow, or at sunrise on the 12th of Never. The Godot Machine is a functional art piece that uses a solar panel and a joule thief to charge a bank of capacitors up to 5V. Whenever that happens, the Arduino comes online and generates a 20-bit random number, which is displayed on an LED bar. If the generated number matches the super-secret number that was generated at first boot and then stashed away in EEPROM, the Machine emits a victory beep and lights a green LED. Then you can go back to complaining about whatever. We like that [kajnjaps] made his own chaos-based random number generator instead of just calling random() . It uses a guitar string to collect ambient electronic noise and an entropy generator to amplify it. Then the four

Mozilla recently officially released their IoT platform . This framework comes with “Gateway” software that can run on a Raspberry Pi and a framework that can run on any number of devices. As we’ve seen, IoT is a dubious prospect for consumers. When you throw in all the privacy issues, support issues, and end-of-life issues; it gets even worse. Nobody wants their light bulbs to stop working because a server in faraway land shut down, but that’s an hilariously feasible scenario. WebThings comes with a lot out of the box. It comes with a user interface, logging, rules, and an easy-to-understand API. Likewise the actual framework allows for building on many common devices and can be written in Node, Python, Java, Rust, Micropython, and used as an Arduino library. This opens it up for everything from a eBay ESP32 to a particle board. We’ve started to notice some projects that use it trickling in on the tip line and on hackaday.io. We’re interested to see what kind of community grows ar

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[Zoltán] sends in his very interesting implementation of a NumPy-like library for micropython called ulab. He had a project in MicroPython that needed a very fast FFT on a micro controller, and was looking at all of the options when it occurred to him that a more structured approach like the one we all know and love in CPython would be possible on a micro controller too. He thus ended up with a python library that could do the FFT 50 times faster than the the pure Python implementation while providing all the readability and ease of use benefits that NumPy and Python together provide. As cool as this is, what’s even cooler is that [Zoltan] wrote excellent documentation on the use of the library . Not only can this documentation be used for his library, but it provides many excellent examples of how to use MicroPython itself. We really recommend that fans of Python and NumPy give this one a look over! from CommaFeed - Real Time Trends Network https://ift.tt/2Prx0CJ via IFTTT

Alexander Vindman, Donald Trump, and how the loyalty of Eastern European Jews, even decorated veterans, is viewed as suspect. from CommaFeed - Real Time Trends Network https://ift.tt/2oxnWBe via IFTTT

The King's hairdressers explain how they crafted perfectly outrageous looks for Timothée Chalamet and Robert Pattinson. from CommaFeed - Real Time Trends Network https://ift.tt/2pZdlzk via IFTTT

A Q&A with a clinical psychologist who specializes in getting couples to talk about openly about sex. from CommaFeed - Real Time Trends Network https://ift.tt/2JtVmbi via IFTTT

Finding the best pillow for your sleep style will make those those 7 hours of sleep suddenly feel like .... at least 7.25 hours. from CommaFeed - Real Time Trends Network https://ift.tt/2x6u9Ew via IFTTT

Persistence of Vision (POV) is a curious part of the human visual system. It’s the effect by which the perception of an image lingers after light has stopped entering the eye. It’s why a spinning propeller appears as a disc, and why a burning sparkler appears to leave a trail in the air. It’s also commonly used as a display technology, where a series of flashing LEDs can be used to create messages that appear to float in the air. POV displays are a popular microcontroller project, and today, we’ll explore the basic techniques and skills required in such builds. You’ll Wanna Drive Some LEDs A multiplexing layout for driving LEDs. Source: LEDnique.com The vast majority of POV displays are built with monochrome LEDs. They’re easy to drive with microcontrollers, with low-power devices requiring just an I/O pin and a current limiting resistor. The simplest displays use a line of LEDs, swept back and forth, or spun around, to generate their images. I’ll talk more about POV displays that mo

How do you do a 70-year career justice? London’s Hayward Gallery might just have the answer, with the most extensive and comprehensive exhibition of Bridget Riley to date. This non-chronological, thematic show is not one you can saunter through. ‘I encourage you to put the camera down, stand in front of it, give it some time and let your eyes settle into each image, because I think that’s when the magic starts to happen and the image starts to dance,’ says Hayward Gallery senior curator, Cliff Lauson. It’s a treat to glimpse into a pre-career Riley, from studies she produced as a schoolgirl in the 1940s, including an impressive copy of Jan van Eyck’s A Man in a Red Turban , and a subsequent chapter of work from her time at the Royal College of Art where she cut her teeth on life models.  In the late 1950s the British art scene was rife with ego and jarring commentary on the swelling consumer boom. While Francis Bacon was wielding his infamous brush towards scenes of despair and Rich