Make a Lead Battery

Update February 25: The Nokia 9 PureView was announced at Mobile World Congress! Read all of the official specs and details at our full rundown of Nokia's latest flagship. It wouldn't be an exaggeration to say the Nokia 9 PureView is the flagship device most Nokia fans have b ...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

Afraid of the dark? You're only afraid of things you can't see. Just like an owl, see through the darkness, light up your imagination, and use your own owl eyes to make your very own Halloween hoot. To make this owl, you'll need black foam board, an X-Acto knife, LED lights, b ...more

Led infinity mirror that I make with some materials like mirror from old hard drive,leds,plastic mirror sheet and battery holder. Video: . Make sure you subscribe for more awesome videos from the macobt projects! Subscribe to my YOUTUBE channel:http://www.youtube.com/subscrip ...more

While the Samsung Galaxy Note 2 has an integrated LED for notifications, it only works for a few things, like charging and low battery, and it only flashes two main colors (red and blue) when the screen's off. As someone that usually has their phone on silent or vibrate, it's ...more

For most people, the battery life on a DSLR is more than sufficient, but if you want to do a really long exposure or time-lapse, one charge might not last long enough to get the shot you want. You can always connect it to an extension cord to charge while you shoot, but that c ...more

REQUIREMENTS: LED's,connecting wires,tip 31 transistor,battery,3.5 mm audio jack,soldering machine,soldering wire,soldering paste. Now Make the Connection of Components as Shown Below

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

Apple's first big iOS 17 point update for iPhone just came out, and it includes some of the features initially planned for the iOS 17.0 release last September. But there's much more to iOS 17.1 than that — exciting new features and changes are hiding within Books, Music, Stand ...more

Apple's latest big software update includes an entirely new Apple app, a controversial change in the TV app, better Siri control, an improved Shortcuts app, interesting Safari upgrades, Apple Music Sing, and more. Keep reading to see what iOS 16.2 has to offer your iPhone. Th ...more

Mobile gaming has exploded in recent years, with experts predicting 2.4 billion global mobile players by the end of 2019. It already accounts for 47% of the worldwide gaming market, besting console and PC. No wonder we've seen the rise of gaming smartphones, a class of phones ...more

There's a 2800mAh battery powering the Samsung Galaxy S5, but even it's no match for the constant day-to-day torture you put it through. Taking photos, watching videos, and playing games can make your fully charged S5 powerless in no time. While there are some features built- ...more

The arrival of Magic Leap One is tantalizingly close and, although the company has been saving the last details for launch day, a few of the more important details were found this week hiding deep in the code on Magic Leap's website. While Magic Leap's AR hardware will be her ...more

Aspiring engineers, your challenge, should you choose to accept it, has been issued by Jaguar Land Rover. Prove yourself and you can be the next in line for greatness. — Jaguar That is the challenge posed by Jaguar as they attempt to find the next generation of the best and ...more

According to a new study, the majority of smartphone users check their devices 150 times a day. While that number may seem incredibly high at first glance, the influx of notifications and amount of social media apps available reduce the initial shock and make the number seem n ...more

What's a penny worth these days? Not much. But could there be some free energy hidden inside your spare pennies? You'd be surprised! See how I hack together stacks of pennies into makeshift batteries that can drive small-current devices like LEDs and calculators. Video: . You' ...more

Surprising? No. Exciting? Absolutely. After a grand introduction by at the Apple event on September 10, 2019, the iPhone 11 is finally here. We may have known nearly everything about this new iOS device ahead of time, thanks to the usual surge of reliable leaks and rumors. Th ...more

The price of hacking Wi-Fi has fallen dramatically, and low-cost microcontrollers are increasingly being turned into cheap yet powerful hacking tools. One of the most popular is the ESP8266, an Arduino-programmable chip on which the Wi-Fi Deauther project is based. On this ine ...more

If you want to get started sniffing Wi-Fi networks, you usually need to start with a wireless network adapter. But thanks to a Wi-Fi sniffing library written in Arduino and the ultra-cheap ESP8266 chip, you might not need one. For less than $10 in electronics, you can build a ...more

After years of rumors and waiting, Samsung's first foldable smartphone is finally a reality. The phone itself is a bit wild, but with Samsung going so far out of their comfort zone with this one, there were some bumps in the road that caused a delayed release. The launch has b ...more

After poor sales of the Pixel 3 and Pixel 3 XL, Google needs to reinvigorate its Pixel lineup, devices it's been pushing heavily over the last couple years. On May 7, Google had the eyes and ears of the technology industry at its Google I/O keynote, making it the perfect time ...more

The top five apps of the 2010s were all social media apps of some kind, and the fact that's not surprising to you says a lot. We may use them for other reasons here and there, but our phones are social media machines at their cores. The thing is, some make better machines than ...more

Last year, Razer kicked off a new trend by building a smartphone from the ground up with mobile gamers in mind. At the time, many thought the Razer Phone solved a problem that no one really had — but a year later, we're starting to see that gaming phones are perfect for more t ...more

When it comes to the sub-$250 price range, the new Nokia 5.1 might be the perfect phone. Of all the new models announced at Nokia's event in Moscow, the Nokia 5.1 offers the most with the least compromises. For a third of the cost of a flagship, you get a phone with a premium ...more

Using a technology we like to call "Hive Computing," several Android apps allow you to contribute idle processing power to help further scientific research. This basically means that when you're not using your phone or tablet, it can join forces with other idle devices to form ...more

Using copper pennies (be sure they are older than 1983), lemon juice, paper towels and sandpaper, you can construct your own DIY battery that generates enough juice to light up an LED. The process is simple: simply sand down one side of a penny with sandpaper (be careful not ...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

There are a lot of things your Samsung Galaxy Note 2 can do straight out of the box, but there's also a ton of things it can't, or simply could be better at. That's why most of us end up rooting—to enhance the mobile experience. Today, I'll be showing you some of my favorite ...more

A deck of cards may be a magician's best way to demonstrate his or her's sleight of hand, but for the prankster, it's the perfect way to deliver a shocking 300 volts of electricity! And that's exactly what I'm going to show you how to do today. Stuart Edge used it in his "Elec ...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

Remember the magical LED graffiti video "paint"? Here's another cool LED graffiti design by Aissa Logerot. "Halo is a handy light-writing tool, preserving the techniques and gestures that graffiti artists use with spray cans. It is possible to change the color and the brightn ...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

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

The Moto G7 Power is a phone that screams battery life. From its display resolution to the massive battery, it was designed for those who hate to recharge each night. But unlike other battery-focused smartphones, it comes at a price almost anyone can afford. Lenovo, Motorola' ...more

There's always been a clear divide between flagship and midrange phones. Flagships will run you at least $700, while midrange typically falls between $250 and $550. The main difference is the processor, with midrange phones sporting a 600-series Snapdragon and flagships rockin ...more

The default screen timeout on most Android devices is 30 seconds. This usually offers a good balance of usability and battery savings, but sometimes, you need the screen to stay on longer. For instance, practically every time I try to show something on my phone to someone else ...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

If you've never heard of geocaching, it's kind of a grown-up treasure hunt you play everywhere in the world. GPS coordinates are given as clues and the players must find the cache box. There is usually a log book to write your name and a small toy or present to collect. The l ...more

It probably doesn't happen much, but occasionally you'll run into a frozen or bugged-out app on your iPhone or other iOS device. That's where force-closing comes in, allowing you to close any app manually through a few clicks and swipes. While the process of force-closing an ...more

Postural problems can lead to all sorts of problems, from back, hip, and neck pain to heartburn and digestive issues. Over time, balance problems, insomnia, fatigue, and even jaw misalignment can emerge. How you carry yourself matters. When we first sit down, we're often awar ...more

Samsung decided to jump into the foldable category early, announcing the Galaxy Fold in February 2019. After a major hiccup, Samsung released the phone four months later to praise. But Samsung's not finished with foldables, as the new Galaxy Z Flip is just on the horizon. Sam ...more

Sorry, Galaxys S11–19, Samsung's jumping straight to Galaxy S20 this year. They're also going with essentially three base models before accounting for niche variants. Of these three models, it's clear which one's the best: the Galaxy S20 Ultra. We've rounded up all the specs ...more

As the premiere app for chatting and video calls, it only makes sense for Skype to provide a dark theme to help prevent eye strain and minimize battery drain. Not only that, it has to also keep pace with popular messaging apps like Facebook Messenger that also have the feature ...more

After months of waiting, it looks like HMD has finally answered the call. Nokia's parent company is finally releasing a true flagship phone — one that isn't just an enhanced version of a previous phone and actually brings something new to the table. That phone is the Nokia 9 P ...more

We recently set out to find the best phones for people whose primary usage revolves around social media apps like Facebook and Instagram. Samsung, Apple, and Google were the three brands that made our top five, and while the latter only had one finalist, the two bigger OEMs ha ...more

While much of the technical specifications of the Magic Leap One: Creator Edition still remain a mystery, some clues to its internals are hidden among the guides in the now freely-accessible Creator Portal. An article titled "NVIDIA Tegra Graphics Debugger" appears to confirm ...more

Apple released the sixth beta for iOS 11.3 on Friday, March 16. It comes as a surprise, considering the company released the fifth beta only four days ago — an unexpectedly short time between updates. This new beta, much like beta 5, appears to bring minor patches and bug fixe ...more

All the cash Magic Leap is amassing is probably going a long way toward hardware development and manufacturing, but it's also becoming increasingly clear that a large portion of that cash will be devoted to content. The latest proof is a new partnership between Magic Leap and ...more

We've all been there. Lost in the supermarket for what feels like hours trying to figure out where the hell the macaroni and cheese is and why it isn't with the rest of the pasta items. The labels at the top of the aisles aren't always helpful or accurate, and items often get ...more

Driverless partnerships continue to appear as Continental AG, leading German automotive manufacturing company, has signed a strategic cooperation agreement with global electric startup, NIO. The goal of this partnership is to research, share, and develop autonomous technology, ...more

At the WinHEC Shenzen 2016 Keynote, Microsoft showed off a system running Windows 10 smoothly on an ARM processor. This could be great news for developers of mixed reality software. Now, if you do not quite understand why this is good for Windows Holographic and mixed reality ...more

Mobile gaming still isn't on par with video game consoles or PCs, but we've come a long way from Snake. Modern games running on the latest smartphones boast downright impressive graphics—even more so when you consider how compact the system has to be in order to fit in people' ...more

Your iPhone might have a great camera, but it can be irritating to get things like exposure and focus right when your fingers are all over the 'viewfinder.' The Pictar aims to change that by making your iPhone as much like a DLSR as it can, keeping your fingers from obstructin ...more

February 21st is going to be a busy day for Android smartphones. Samsung has already scheduled its "Unpacked" event to show off their new Galaxy S7 and S7 Edge handsets, and now LG is joining in on the action, as it will unveil the G5 on the same day, at the Mobile World Congr ...more

The Consumer Product Safety Commission (CPSC) announced that Amazon will be offering full refunds for any hoverboard purchased through its site in the United States or Canada, no matter when you bought it. Just visit amazon.com/returns or amazon.com/contact-us to start the pro ...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

So i ran into a problem few days ago and it seemed to be very annoying one. I got hands on ASUS X55A with broken HDD. So i changed HDD and woo enter bios password. I hit enter and got into bios where uder security tab was shining ADMINISTRATOR PASSWORD INSTALLED. There was no ...more

We've already seen the visual changes that Android 5.0 Lollipop has brought to the table, but Google spent just as much time altering things under the hood. Awesome new functionality and hardware capabilities have been added left and right, and with the OS already out now, it' ...more

Whether it's a chaotic family day meetup at the beach, barhopping with buddies, or getting stranded in the middle of nowhere with a dead car battery, being able to share your exact location with others using your smartphone makes life easier and less stressful. Apple is makin ...more

Good battery life is one of the most important things any phone or tablet should have, but iOS 7 isn't always that great at handling power consumption. That leads to tunnel vision on the status bar's battery meter. After all, you don't want to be stranded in the middle of nowh ...more