The cell phone may have replaced the pocket watch, but thanks to some clever mods and hacks, "old-fashioned" time telling is making a comeback. Smart watches that connect to your mobile device cannot only tell you what time it is, but also change the song you're listening to a ...more
Have you ever wondered how to replace a watch battery? Watch this video and learn how to do just that.
When your treasured watch no longer goes "tick tock," or does so now very slowly, you know it has one foot in the grave. Or does it? If your watch battery is dead, all you have to do is take it out and replace it with a new one. Take a look at this video to learn how to insta ...more
See how to power an LED with a lemon battery.
While the Apple Watch does have up to 18 hours of battery life each day on a full charge, your results will vary depending on how often you use it and what you're actually doing with it. If your Apple Watch isn't lasting all day long, we've got some battery-saving tips you ca ...more
Considering how the Apple Watch works as an extension to your iPhone, it would've seemed like a no-brainer to include the ability to view your iPhone's battery life from the Watch, but in true Apple fashion, they did not. Thankfully, developer Kelly Pangburn did Apple's job f ...more
When ringtones and vibration alerts miss the mark and fail to grab your attention, causing you to miss an important call or text, LED flash alerts are a great backup plan. While we already showed how to activate this on Samsung devices, the apps shown below make this feature e ...more
For many, phones are starting to replace televisions as the primary device for watching videos. Thanks to their portability and easy to use apps, it's often simpler to watch Netflix, Hulu, YouTube, or Prime Instant Video on the smaller screen. But not every phone is suited to ...more
Want to put some electronics into your terrain piece or diorama? LED lights are great. You can use tiny watch batteries, which are small and efficient. LED lights are cheap, they come in colours, and you can find them in all kinds of broken gadgets. Watch this instructional vi ...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
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
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
It isn't a new gadget, but the EyeClops Mini Projector still makes a great stocking stuffer for Christmas Day. It's great for kids to play with, but for techies— it's sure to be something fun to hack and mod this holiday season. The EyeClops Mini Projector looks more like Wal ...more
If you have an older battery charger and it works apart from having worn out terminals or frayed wiring, don't throw it away. Overhaul it with new wires, a plug and clip leads. This costs about $15 at the most instead of the $50 for a new unit. So watch this automotive repair ...more
Nothing else quite sums up my childhood like Super Mario, the Italian plumber who constantly had to defeat Bowser to save Princess Peach (aka Princess Toadstool) from danger. While it's easy to relive the classic gameplay on your Android with Nintendo emulators, not everyone h ...more
It turns out that the popularity of soft circuit electronics has leaked out of the interwebs and into the hands of the U.S. military. Soft circuit electronics allow you to literally sew electronics circuits into fabric using flexible conductive thread instead of wire. Soft cir ...more
In the case of Apple Watch v. Fitbit, the winner comes down to the judge at hand. Apple currently offers two smartwatches — the Series 5 and the Series 3 — while Fitbit offers three models — the Fitbit Versa 2, Fitbit Ionic, and Fitbit Versa Lite. Whatever your assumptions abo ...more
There are more ways to finding your missing iPhone than using Apple's own "Find My iPhone" tool in iCloud. If you just need help tracking down your iPhone in your home or at a friend's house, Find My iPhone isn't necessarily the most convenient thing to do when you've got thes ...more
What's an LED Throwie? Watch this video and find out how to light up your neighborhood using colorful LED's and magnets! Yet another great idea for creating neighborhood art from Graffiti Research Lab. LED Throwies are an inexpensive way to add color to any ferromagnetic surf ...more
What happens when you need to build a fire, but you forgot your matches and lighter? What if you don't know the fire-plow method, the bow and drill method, or even the flint and steel method (not that you would have flint, because you forgot your lighter)? Watch this survival ...more
In this Electronics video tutorial you will learn how to build and use a tinyCylon kit. The kit contains a battery pack, a PCB, LEDs, resistor, a momentary switch and a screw. The long end of the LEDs will go into the square shaped contacts. Don’t push the LEDs right up to t ...more
Whenever we make a homemade circuit, we use what are called through-hole components. Any components with long metal leads is a through-hole component. They are great for soldering to, but it's tough to fit enough through-hole resistors and capacitors into a smartphone. To get ...more
Check out this kitchen table science experiment on how to make electricity from copper, zinc and water. You can make your own battery to power a small LED light from just nails, copper wire and water. You will need copper wire, zinc (in the form of galvanized nails), a multim ...more
Check out this low cost project. This video will show you how to transfer sound over light! Yes, this is possible. You'll transfer a sound with a distance of 5 meters, but you may experiment on greater distances if you'd like. You'll need a laser (or an LED) for this audio pro ...more
To make a glowing ice bulb, like the one in this how-to video, you need LEDs, batteries, wire, a balloon, and electrical tape. First, you connect the led to the wires. Then, you put the LED in the balloon, fill the balloon with water and freeze it. Once frozen, remove the ball ...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
In 2019, Sony is mixing up its design, attempting to stand out among the sea of familiarity. Instead of emulating Samsung with punch hole cameras, they decided to target a rare section of the market, content consumers. There's the Xperia 1 for those who want the best, and the ...more
Performance and stability improvements, as well as new features, are just some reasons to install iOS 12, but new changes mean new battery health challenges. It can be difficult to boost battery life while taking advantage of everything this update has to offer. Luckily, there ...more
The new iOS 11 was just released by Apple, and you can install it right now. Overall, it's got some great features, but how does it fare battery-wise on your iPhone? And how can you increase daily battery life for more juice and less charging every day? No matter the iOS vers ...more
Watch this science video tutorial from Nurd Rage on how to make a lithium thionyl chloride battery, which is capable of generating 2.8v with enough current to power a LED. Warning: Thionyl Chloride is EXTREMELY toxic and this experiment must be performed in a fumehood by an e ...more
You can do a lot more with playing cards than you'd think, like turn them into gift boxes, fling them like throwing stars, and make them levitate or disappear. You can even make them recharge your batteries. Instructables user Shawn Frayne was sick of having a bunch of dead ba ...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
With iOS 6 coming out yesterday, there were bound to be plenty of glitches. iPhone users filled Apple's forums with complaints, with battery drainage issues leading the way. Many users complained of rapidly increasing battery drainage after updating to iOS 6, specifically with ...more
Whether it's a short road trip or an 18-hour flight, our phones are now essential travel companions. No longer do we need a GPS unit, maps, cameras, camcorders, or even boarding passes. However, not all phones are created equal in this regard. Some are more suited for travelin ...more
The hugely successful S10 series of flagships may be a tough act to follow, but Samsung has proven that it's up to the task with the Galaxy Note 10. The latest phablet bearing the Note name is the first of its line to come with an even larger variant, and boasts an eye-pleasin ...more
There's never been a better time for streaming movies and TV shows on the go. With so many services available, the only limitation to your enjoyment is your phone's accessories. Whether you're buying for yourself or someone else, here are some of the best gifts that improve th ...more
Fans of Doctor Who know that the sonic screwdriver is the ultimate tool. It can unlock doors, turn on lights, detect life forms, solder wires, and sabotage weapons. Presumably, the sonic screwdriver creates sonic vibrations to achieve whatever the doctor wants by vibrating th ...more
Just about every household gadget we own runs on 1.5 volt batteries of one size or another. Wouldn't it be great if you could reuse all of those dead AA, AAA, and D batteries after they've passed on? It turns out you can make a simple circuit called a "Joule Thief" to reanimat ...more
Samsung hopes to make a splash with the new Galaxy Note 9 to make up for the underwhelming sales of its signature Galaxy S9 series. This flagship is a radical departure from its predecessors — it's now optimized for gaming and paired with the most advanced S Pen stylus to date ...more
Update: The LG G8 ThinQ has been announced. You can read all of the official specs at our full article on the new phone. 2018 was another rough year for LG. The mobile division lost over $700 million last year despite releasing four flagship-caliber phones. LG, however, remai ...more
The first day of Hanukkah is here, the day you start lighting the candles of the menorah. So, why not ditch the wax and light the "lights" this year? (Skip ahead to see the LED menorah) Hanukkah is a Jewish festival that lasts eight days from the 25th day of Kislev, which th ...more
I was in college, and my 15-inch Sony Vaio laptop was my prized possession. It was my first PC and probably the most important thing I brought with me to my dorm — it was both how I completed my assignments and my primary source of entertainment. How could it turn its back on ...more
While many of the features in the iPhone 16 and 16 Pro series build on what we've seen in previous iPhone models, Apple has packed the 2024 lineup with iOS 18 and plenty of fresh upgrades worth considering. The iPhone 16 Pro and 16 Pro Max boast several groundbreaking feature ...more
Save tons of money by building your own LED pen that works with a multitouch smart board / whiteboard. You'll also need a WiiMote (Wii Remote) to use in conjunction with your homemade LED pens that you'll be making in this video. To get started with this awesome project, you'l ...more
Learn how to make LED ice cubes with this tutorial! Steps: First take LEDs of any color and test it with a small battery. Then take a ice tray and a strip containing holes in which the LEDs can easily fixed. Now take Resin and Hardener solutions and stir them. Now place the LE ...more
Sure you could take $2.50 and just buy some batteries, but how much fun would that be? Watch this video to learn how to make a coin battery.
Watch this "Grease On Your Hands" video tutorial from the Washington Post to see how to change your dead car battery properly. When servicing any automobile, you should always wear appropriate eye-protection as well as ensure your working environment is properly ventilated. W ...more
Want to play Led Zeppelin's "Stairway to Heaven" on the electric guitar? See how it's done with this free video guitar lesson, which presents a complete breakdown of the song and its chords in tab notation. While this tutorial is geared toward those who already have some knowl ...more
Want to play Led Zeppelin's "Heartbreaker" on the electric guitar? See how it's done with this free video guitar lesson, which presents a complete breakdown of the song and its chords in tab notation. While this tutorial is geared toward those who already have some knowledge o ...more
Want to play Led Zeppelin's "Black Dog" on the electric guitar? See how it's done with this free video guitar lesson, which presents a complete breakdown of the song and its chords in tab notation. While this tutorial is geared toward those who already have some knowledge of t ...more
Is the battery life on your Ipod diminishing? Watch this video as the folks at Repairs Universe show you how to replace the battery on your 1st generation Ipod. First you need some tools to pry open your Ipod. Flathead screwdrivers and razors work well. Take the razor and slow ...more
Watch this science video tutorial from Nurd Rage on how to get lithium metal from an Energizer battery. They show you how to get Lithium Metal from an Energizer Ultimate Lithium battery. There are a great many types of lithium batteries and the particular chemistry of interes ...more
This two-part video introduces you to the breadboard, also called a protoboard, used to build electronic circuits without soldering. The first part of this presentation describes the features of a breadboard. The second video continues by showing you how a breadboard is used ...more
You left your lights on and now your battery is dead. Watch and learn how to jump start your car with this informative tutorial from the experts at Edmunds. Jump start your car correctly. Click through to watch this video on edmunds.com
Triboluminescence is the quality that makes a substance emit light when you crush, smash, hit, or otherwise break it's molecular bonds. If you want some triboluminescent (smash-glow) crystals, watch this video to learn how to make some out of a battery, glowpaint, and fire.
Need to use up vinegar? Here is an interesting way to convert your standard vinegar into a working battery. Learn the technique to create an alternative source of energy using vinegar. Make a vinegar battery. Click through to watch this video on tricklife.com
Turn a light up toy top and cheap flashlight into an amazing projected patterned lightshow! Make an L.E.D. lightshow. Click through to watch this video on videojug.com
Learn how to install safe, dimmable LED lights underneath cabinets in a kitchen or workshop. Step-by-step video instructions of the entire process. Install undercabinet LED lighting. Click through to watch this video on ronhazelton.com
Simple yet effective, capacitors come in a dizzying array of forms and materials, vital to so many circuits for storage, timing, and filtration - the mighty capacitor! In this installment of the MAKE presents series, Collin Cunningham explains - how to build a Leyden jar, how ...more
Why not add a little green to your workspace? A fun little project that looks nice. Build an LED USB powewed greenhouse for your desk! Make an LED USB greenhouse. Click through to watch this video on videojug.com