Fix Laser Burn

WonderHowTo is a how-to website made up of niche communities called Worlds, with topics ranging from Minecraft to science experiments to Scrabble and everything in-between. Check in every Wednesday evening for a roundup of user-run activities and how-to projects from the most ...more

In my second article of the laser weapon series (see the first part here on CO2 lasers), I'll be expanding on the potential of pulsed lasers. I'm sure most everyone has seen those green and red laser pulses on Star Wars. Theoretically, those lasers could be built using a conc ...more

I have owned quite the plethora of electronics in my life. A commonality between most of these devices' screens is frozen or dead pixels. This is probably the most annoying thing about buying new hardware—your LCD, or worse, LED display has one or more pixels that continues to ...more

Homemade circuits are amazing. You can build any kind of circuit on a simple perfboard, as we have seen in previous projects. However, some projects require very tiny circuit boards. We could special order some boards from a printed circuit board (PCB) factory, but that will m ...more

There are loads of reasons for somebody to want to recover a Windows password, and there are lots of different ways of doing it. My favorite of all of these ways is to use a piece of software called Ophcrack because: The free tables are suitable for almost all uses (I've neve ...more

Windows 8 Beta (Developer Preview) It wasn't that long ago Windows 7 was released - now Windows 8 Beta is here. I did do a Google search to see when the stable version will be out but wasn't able to find an official statement from Microsoft. However - I saw several articles o ...more

With the mass arrests of 25 anons in Europe and South America, and the rumors of an FBI sweep on the east coast of America floating around, times look dicey for hackers. Over the past few days, a lot of questions have been posed to me about removing sensitive data from hard dr ...more

Imagine you're in Paris and you need to get to Versailles. Looking around for directions, you come to a cold realization—you do not speak a lick of French! How are you going to get to Versailles and what happens if there is a detour? It will be a difficult struggle, and you'd ...more

Pumpkins, murderers, vampires, zombies, ghosts, witches, death… these are all the subjects of last week's Scrabble Bingo of the Days, which focused on words associated with Halloween and horror movies. Did you know there was actually a name for someone who suffocated another p ...more

You've seen his explanation of a combination lock's inner workings. You'll never lose another game of Jenga, thanks to his winning wooden pistol. And nearly 4 million YouTube users have marveled at his wooden marble machine sculpture. He's Matthias Wandel, and he's accomplishe ...more

You may remember this badass wall of flames photo... That's because last month I highlighted a tutorial by photographer Barry Elder that showed how to light paint with fire. This dangerous technique involves dipping a strap in petrol, attaching it to a rope, then lighting it ...more

Google caught a lot of flak for the Pixel 2 XL's POLED display issues, regardless of whether the problems were real or perceived. It's too late to contract another screen manufacturer at this point, but Google is doing the next-best thing: Fixing as many user complaints as pos ...more

This video shows you how to install/repair/fix/change/replace a broken, damaged, burned out, cracked, faded, cloudy or chipped fog light, applicable to 2004-2006 Chrysler Pacifica models. Video: .

This video shows you how to repair/install/fix/change/replace a broken, damaged, burned out, cracked, faded, cloudy or chipped taillight, applicable to 2004-2008 Chrysler Pacifica models. Video: .

Looking for an (explosively) fun Thanksgiving project this week? Something that involves fire and lasers? Check it out. YouTube creator StyroPyro lights ten matches in 9 seconds with a modded laser. One word: Awesome. Luckily both StyroPyro and Kipkay provide HowTo's. First, H ...more

Velodyne wants to set the standard for the driverless industry when it comes to LiDAR. To do that, the Silicon Valley-based team just announced its next step — create a low-cost, fixed-laser sensor that can be embedded into a wide range of automotive and autonomous vehicles. T ...more

Every time Apple releases a new version of their mobile operating system, it comes packed with an assortment of bugs, issues, and other hindrances. When they released iOS 6, there were major Wi-Fi issues, App Store problems, battery drains, Passbook bugs, and lock screen expl ...more

We recently ran down several hidden features on the Galaxy S9 — items that are buried deep within the settings menu that can be tricky to find. One thing that many users cannot find is the option for a black navigation bar. Unfortunately, this option does not exist in Samsung' ...more

No one ever wants to experience pain, whether it's as small as a stubbed toe or as great as recovering from surgery. Yet so much of our lives causes pain, lasting or brief in its form. With a few mental tricks and unusual home remedies, you can relieve some of the most common ...more

Got a clogged kitchen sink? Before you reach for the plunger, see if you can fix the problem using Alka-Seltzer tablets and white vinegar. Simply drop four Alka-Seltzer tablets down the drain and follow that with 1 cup white vinegar. Let sit for 10 minutes before flushing the ...more

In 1859, 22-year-old chemist Robert A. Chesebrough accidentally discovered petroleum jelly when he visited a working oil well in Titusville, Pennsylvania. Oil workers complained of a gooey substance referred to as "rod wax" which kept getting into the machinery and slowing the ...more

Microcontrollers like ESP8266-based boards have built-in Wi-Fi, and that's really cool, but what's even cooler is that certain pro models of the D1 Mini also have a port where you can connect a directional antenna. This can give you exceptional range, but if you were to just p ...more

Last time, I showed how to start putting together an AC arc welder from scavenged microwave parts, focusing on the transformer modifications. Now, I'll show you how to finish up your DIY stick welding machine by fixing up the electrical system and performing the finishing touc ...more

Aluminum foil is one of those things that every cook, experienced or just starting out, has in their kitchen. And while we may think we know how useful this handy material can be, there are hundreds of ways we could be utilizing tinfoil to make our lives a whole lot easier. 1 ...more

Break out the office supplies and kitchen utensils, because improving your morning makeup routine is about to get a lot easier. Some of the things you have lying around the house can provide the perfect solution for some of the most common beauty problems. We've collected 10 o ...more

With warm weather comes bugs, and with bugs come bites, and with bites come itches. From ticks and spiders to mosquitoes and bees, insect bites come in sundry shapes and sizes, but they all commonly pull an itchy, red reaction out of our bodies. Once a bite fires up our immun ...more

Apple is notoriously private when it comes to perspective products, but the latest leak from their De Anza office in Cupertino suggests that a new augmented reality device could be coming to a store near you. Gizmodo has obtained documents which appear to confirm that the tec ...more

It's bad enough messing up in the kitchen when it's just for you or your family, but when you're cooking for a big event with a lot of guests, it can be mortifying. And on a holiday like Thanksgiving, that's all about the food, the last thing you want is to botch a key compone ...more

Right now is that magical time of year when the general public decides to embrace their inner fattie and get baking in the kitchen. Hello, pies and cakes and cookies and everything carbs. Goodbye, diets—see you in the next year, when you cripple us with unbridled guilt and lon ...more

Apple released iOS 14.5 developer beta 1, and the update sports a list of interesting features and changes. Some of those include support for the Xbox Series X and PS5 DualSense controllers, the ability to unlock your iPhone with Apple Watch, AirPlay 2 support for Fitness+, 5G ...more

While mobile data caps are larger than they used to be, many of us still have limits to contend with. If you find yourself up against that ceiling month after month, your iPhone itself might be to blame. Luckily, there's an easy fix to stop your iOS device from burning through ...more

According to multiple users on Reddit, the Pixel and Pixel XL's camera can have some serious auto-focus issues if you're using a certain type of case with Google's new flagships. When the problem occurs, your camera app will refuse to settle on a focus point, making almost eve ...more

When a new version of iOS comes out, everybody gets caught up in the craze of finding features and playing around with new functionality. But this generally leads to a lack of coverage on the finer aspects of the update—things like bugs, minor tweaks, and pain points that user ...more

Several Samsung phones have a feature that turns the screen black and white when the battery is getting low. This takes advantage of the AMOLED display in these devices, because unlike red, green, and blue pixels, no battery power is used to display black pixels on this type o ...more

Few things in life are as relaxing and enjoyable as baking. When I'm having a bad day, I make cookies. When I'm stressed out, I bake a cake. When I have a free Sunday with nothing to do but listen to music and drink coffee, I bake a tart or a batch of cupcakes. True, much of ...more

Fresh salsa is so tasty. Who can resist the robust mix of spices, the mouth-watering heat of jalapeños, and the juiciness of fresh tomatoes? Alas, I don't always make my own and have to get the pre-made stuff. However, there are ways to fix jarred, canned, and bottled salsas ...more

The Chromecast may be slowly weaving its way into the smartphone ecosystem, but the amount of supported Android apps that are available for the streaming media player are still severely limited. Google Play Music is one of the native apps for the Chromecast, allowing you to s ...more

Collodion—it's one of those things that you probably never heard of before, but have actually come across many times in life. It's used for all kinds of applications, from photography to special effects, and it even has a few medical uses. So, what exactly is collodion? Photo ...more

You must have seen some expensive mp3 players and CD players which have LEDs fixed on them and they dance to the tune looking really pretty. Imagine you could make your own LEDs and configure them to dance to Daft Punk or Swedish House Mafia. I’m going to tell you how it can ...more

Thanks to everyone who submitted ideas in last month's Mad Science contest. The question called for your best idea for using Sugru, a temporarily malleable silicone modeling clay that self cures for a soft-touch permanent bond. It's a marvelous product for at-home quick fixes ...more

When learning Wi-Fi hacking, picking a compatible Wi-Fi network adapter is the first step to learning to crack Wi-Fi passwords. Many compatible adapters have swappable antennas, and there are several different kinds of specialized antennas you can add to a network adapter to ...more

Did you know Kali 1.0.8? You probably did, and you probably know about the EFI boot option that has been added. That's a very interesting new feature because it allows Kali to be easily booted on Mac too, and every EFI-supported device. First three preview lines gone? As alw ...more

Android comprises an entire ecosystem of apps, games, functions, and features, so it would only make sense that it has its own lexicon. Words, phrases, and acronyms that didn't exist ten years ago are now used in an off-the-cuff style by developers and support technicians acro ...more

I have a theory that chocolate chip cookies are the gateway drug to cooking. The recipe is easy, no special equipment is required, and at the end, you get warm, fresh-from-the-oven cookies that are simply irresistible. It's how I got hooked on baking and cooking, and anecdotal ...more

The debate over whether to deep-fry or roast a Thanksgiving turkey can get pretty heated. Both have their merits, but it's hard to argue with that crispy, golden brown skin and moist texture that the fryer gives. But what's better than a deep-fried turkey? An entire deep-frie ...more

Microsoft released a preview version of Windows 8.1 today, notably adding an updated Start screen, the ability to run several Windows 8 apps side by side in a number of configurations, fully integrated search, better HiDPI support for multiple monitors, and for those who miss ...more

Your iPhone is full of features, many of which you might not even know about yet. Still, Apple keeps adding feature after feature with each new iOS update, and iOS 14.5 is no exception. The latest iOS version adds at least 69 features for your iPhone that you should be happy a ...more

If your new 2020 iPhone SE is frozen, unresponsive, or won't load the system, and a standard power down and up procedure didn't work, there are few more things you can try. Force-restarting the device may do the trick, recovery mode is a last-ditch option, and DFU mode is your ...more

For as long as 14,000 years, the First Nations people of the Heitsuk Nation have made their home along the Central Coast of the Canadian province of British Columbia. Among the territory's inlets, islands, rivers, and valleys lie a clay deposit on the north side of Kisameet Ba ...more

We've all been there before. Preheated the oven, popped in the cake, and then became distracted by this, that, or the other... until we either smelled burning or had the smoke detector pierce our eardrums. Don't Miss: How the Freezer Can Save Your Almost-Burnt Food The casua ...more

Fall is the time for comfort foods—and what is more comforting than crusty bread slathered in melted cheese? Owning a fondue pot is both convenient and wonderful, but not all of us have the luxury of space for nonessential kitchen appliances. However, there are plenty of ways ...more

By now, you've stuffed yourself with enough cranberry-soaked turkey to last you until next year. Still, there's a formidable amount of leftovers, and you're kidding yourself if you think you won't be craving them when you wake up tomorrow with a food coma/hangover. So, make t ...more

Arcades have long faded away from popularity, but their legacy is being kept alive thanks to emulators and the avid fans who grew up loading quarters into all of those coin-op games. Although nothing beats an actual arcade environment, my favorite emulator from the early 2000s ...more

It's one hell of a device, but the Samsung Galaxy S5 is still susceptible to the many hazards that other smartphones are prone to: theft, cracked screens, poor battery life, and particularly, overheating. If your Galaxy S5 is burning a hole in your pocket—and it's not from yo ...more

Mouth burning with pain from eating too much hot sauce or some seriously "spicy" food? Well, ignore your first instinct and steer clear of that cup of cold water — it won't help. Instead, reach for a glass of milk, a lemon slice, a spoonful of sugar, or some starchy bread to d ...more

Last week, we rolled out a major site-wide update on WonderHowTo, making it even easier to follow the subjects you're passionate about—and easier to share your creations with people who'll give you the kudos you deserve! Like any major update, there will be some bugs and ques ...more

If you want to follow Null Byte tutorials and try out Kali Linux, the Raspberry Pi is a perfect way to start. In 2018, the Raspberry Pi 3 Model B+ was released featuring a better CPU, Wi-Fi, Bluetooth, and Ethernet built in. Our recommended Kali Pi kit for beginners learning e ...more

Kali Linux is the obvious first choice of an operating system for most new hackers, coming bundled with a curated collection of tools organized into easy-to-navigate menus and a live boot option that is very newbie-friendly. But Kali isn't the only distribution targeted at pen ...more