Make Led Grow Light

How underrated are cacti in Minecraft? Cactuses can be used for so many wonderful things, so why not have a great way to farm them? Cactus is known for its use in making "cactus green," which is a colored dye that can aid in making cyan wool, lime green wool, and green wool. C ...more

We've seen several examples of light graffiti on WonderHowTo (1, 2, 3), but this one is truly eerily beautiful. Australian photographer Denis Smith pushes the envelope with his project Ball of Light. "The Ball of Light is a mysterious portal into my world. It, and its friends ...more

Since the invention of the mechanical clock, enclosure of the commons, and proletarianization of labor, the alarm clock has been the bane of our existence. While not actually evil, it does represent the constant and uncompromising glare of our owners shaking a patronizing fing ...more

F.A.T. creates the illusion of graffiti with an iPhone application and a projector. The best part? There's a HowTo (click through & scroll down). Previously, Magical LED Graffiti "Paints" With Video. Write With Light. How to Make Dripping Street Art. Graffiti Bot Tags With Pai ...more

Hacked Gadgets recently featured Csaba Bleuer's LED wave display, a device that projects LED messages midair. Bleuer had also previously created a similar device that spins on a fan motor. "Csaba Bleuer sent in some pictures and a video of his new creation. It is a LED Wave D ...more

This article is dedicated to sugarcane, because we all want more sugarcane in Minecraft. The best way to generate sugar cane is with an automatic reed farm that uses pistons and redstone. The pistons push the canes into the water canal you'll build, then delivers them to the c ...more

Video: . Recycle your hard drive into a hidden flash memory device that only you know how to turn on and use in secret. This DIY hack project allows you to recycle your broken hard drives back to life and turn them into something useful. So far, this project has several funct ...more

Earlier we've looked at starting off in Survival mode, plus simple combat. Now we look at a more refreshing aspect of Minecraft: Food! Food Ever since the hunger bar was added to Survival mode, food has tripled in its role. Having no food will slowly decrease your hunger bar ...more

Turkey's been consumed, you've awakened from the food coma, and you've escaped the madness of Black Friday. Isn't it about time you tackle a new project? We've got some great new projects for you to help illuminate the darkness of winter. Make your own electroluminescent (EL) ...more

Difficulty Level: If you have eyes, you can do this. Ambient light is often called available, natural or existing light. Lots of professional photographers have quotes on lights, but this is my favorite: "I only shoot available light. Any damn light that’s available." I wish ...more

Norwegian designers Timo Armall, Jørn Knutsen, and Einar Sneve Martinussen visually capture invisible WiFi signals by light painting signal strength in long-exposure photographs. The trio set up a four-meter long WiFi-detecting rod with 80 LED bulbs to depict cross-sections th ...more

I have an absolutely wonderful time making projects and writing articles for all of you mad scientists! Today, I will bring you behind the scenes for a look at the workbench, tools, and software that make the Mad Science World possible. Above is my beautiful workbench! My who ...more

A new study from John Rogers of the University of Illinois at Urbana-Champaign promises an exciting new tech-chic addition to the world of body modification: flexible, implantable LEDs that would radiate sub-dermal luminescence. Just imagine the possibilities. Rogers' study a ...more

Jogging at night is risky, but with these LED sneakers, the odds of getting hit are drastically reduced. Creator Will Cruz wants you to be safe, so he has generously shared full instructions for making your own light up kicks. Previously, HowTo: Auto-Lace Your Kicks.

Here is a chart I created which indicates what each baby will grow up into when it is placed in the Nursery Barn. Be forewarned that the foal or calf you put into the Nursery will NOT usually grow up into the large version. This was done to keep it fair for those who bought sp ...more

Video games consoles have long wanted to be more than just consoles. Nintendo Japan called the NES the Famicom because they wanted to make it the sole family computer. Obviously that didn't work out, and most efforts to make consoles into all-in-one entertainment systems have ...more

Computer viruses are terrifying. They are undetectable, dangerous, and operate constantly right under your nose. For the average computer user, there are only a few repair options. You could buy expensive antivirus software that causes more problems than it fixes, you can wipe ...more

Valentine's Day is almost here, and if you're like me, you're scurrying to do something special for your mate. The standard chocolates and flowers just isn't cutting it anymore, and you can only make so many homemade cards before it becomes banal and meaningless. So, what can ...more

Etching your own circuit boards is tons of fun, but etching requires strong chemicals to dissolve the copper plating on blank circuit boards. The normal ferric chloride solution works well, but can be expensive and leaves permanent stains. Luckily, we can whip up our own etcha ...more

This article will show you how to make a proportionally correct 1/187 (about) size Hubble Space Telescope. I tried to add as many details as possible, but it was hard at such a small size. It was really easy, but it did take a while to make. Here are some specs for the real H ...more

The Nexus 6 has an AMOLED screen that uses virtually no power to display black pixels. To take advantage of this feature, Google included an Ambient Display notification system that shows a black and white version of your lock screen when you get a new message. As a result, th ...more

I always found that those safety lights for bicyclists on the market were never good enough when riding in the dark. That got me thinking about people who use wheelchairs and how unsafe the night could be when they want to go out. So here's what I came up with: I decked out t ...more

One of the many perks of being a Nexus user is that Google bakes in all sorts of goodies for use on its dessert-themed OS. From an easily unlocked bootloader, to a smooth and well-crafted "stock" UI experience, to being one of the first devices to receive updates straight from ...more

The Nexus 6 uses an Ambient Display notification system that was heavily inspired by the Active Display feature on the Moto X. Essentially, the device shows a black-and-white version of the lock screen whenever you receive a new notification or pick the phone up. This is all m ...more

Advancements in technology have made it perfectly possible to make a short film or even an entire movie with your iPhone or Android — as long as you've got the right gear. Lenses, stabilizers, tripods, lighting, microphones, chargers, and cases can make the difference between ...more

Using my Nexus 7 tablet as a flashlight to light my path on the way to my room late at night is difficult, and honestly, useless. It doesn't have an LED flash for pictures, so using it as a flashlight is essentially just me brightening the display as high as it can go. If you ...more

The mighty Arduino microcontroller can be used to show children how robots work, it can be used to hack into hotel rooms, or it can be used to let you know when you've got a new job opportunity! Mikerb0t was tired of being glued to his computer all day long waiting for new jo ...more

Beautiful LED sculpture made for the 2008 100% Design exhibition in Earls Court. Curious how it was made? Process images below the video. Previously, 24,000 LED Light-Up-My-Dress. LED Wand + RIFD Waves = Awesome Science Art.

Obviously, millionaires like me don't really have to worry about an empty wallet, but for the rest of you out there, having no cash when it comes time to paying a bill can be excruciatingly embarrassing. There is nothing worse than going up to a register thinking you've got s ...more

Google's new Pixel and Pixel XL flagships are some very powerful smartphones, but as with any high-tech gadget, they're only as capable as the user allows them to be. So if you're a proud new Pixel owner, it's time to bone up on a few new features to help get the most out of y ...more

In the driverless race, technological advances can sometimes just add more tension to an already heated competition, if Waymo suing Uber over their allegedly stolen LiDAR technology is any indication. Now, Sony is offering a new camera sensor, one that should help self-driving ...more

With this video tutorial from Household Hacker, you will learn how to make a functional circuit on paper. Really—on paper! See how to make an LED light up with a lead-based paper circuit and how to make a resistor on that circuit. It also shows how to make a flashlight out of ...more

Spending time in a holographic environment brings the virtual world to life, but it doesn't actually create much interaction with your physical environment. So Daenet created a concept app called HoloTwin to demonstrate how holograms and real-world devices can interact with on ...more

Since the introduction of LED flash to smartphones, there have been hundreds of flashlight apps flooding Google Play, since most Android phones do not have built-in flashlight apps, including the HTC One. Third-party flashlights are great for lighting up dark corners, but som ...more

Whether it's forgetting your driver's license or misplacing your cell phone, forgetting things at home can be a pain in the butt. Car keys, wallet, purse, papers, sunglasses—the list can go on. Sometimes I even surprise myself at the important things I forget... Oops. One of ...more

Much like the high volume warning, there are various minute features on Android that users either hate or just find annoying. Thankfully, there are developers out there that sympathize. It may seem frivolous, but one feature that a lot of people want eliminated is the screen w ...more

Whether you're job searching, networking, or just giving your information out to someone you just met at a bar, this circuit board business card made by Brian Carrigan will make sure no one ever forgets meeting you! Sure, you could buy a customized USB business card on some on ...more

We fight cancer in a variety of ways, but no matter whether drugs, biologics, or our immune cells are part of the battle, they can do a better job fighting back cancer if we can help them find the tumors. Scientists from the University of Rochester Medical Center (URMC) have ...more

Black lights come in all shapes and sizes, and they're useful in a variety of ways. They can help you spot fake currency, urine stains, interesting rocks, and deadly scorpions, and they can even help you view cool fluorescent artwork. Most black lights work using a filter or ...more

With smartphone cameras and software getting better and better every year, more and more users are getting passionate about photography. So when you're shopping for a gift to get someone, if they have a smartphone, chances are they'll more than appreciate some tools and access ...more

Unless you're in law enforcement, you won't usually have a flashlight on hand for those rare moments when you need to sift through the dark. However, it is very likely that you will have your phone on you, so you'll have fast access to a bright light with just a few easy taps. ...more

If you're an AirPods owner, you know the sound — that decrescendo of little beeps and boops means imminent "death" for your wireless earbuds. Other than that infamous chime, however, it's not overly clear how to check your AirPods, AirPods Pro, or AirPods Max power levels. Tha ...more

Google inconspicuously announced an Android update yesterday, and while it's not quite the overhaul that the initial Lollipop release was, version 5.1 brings plenty of bug fixes and new features. This new version is currently on a staged rollout for Nexus devices, so the upda ...more

We previously showed you how to make your Android's LED notification light dance to music, but the app itself was limited in customization options, the devices it worked on, and the music apps and services it worked with. Now we'll be showing you a similar app that supports mo ...more

To help keep sleepy binge-watchers from sleep-"watching," Netflix asks if you're still watching after a semi-short period of time. This means that it could be anywhere from 1 to 5 episodes that you slept through, which is better than 2 seasons, I guess—but it doesn't make it a ...more

I don't know about you, but nothing is more annoying than when my phone hits 15% and I'm nowhere near a charger. Not just because I know my phone will die soon, but until I reach a charger, I have to deal with the annoying low battery notification and LED light. Well, with And ...more