How to Make a Water Gun Alarm

Welcome back, my hacker novitiates! Now, and more so in the future, wars will be fought hacker v. hacker. The number of soldiers, guns, tanks, and ships will be less important in your success in warfare than the number of well-trained hackers you have. Every nation and every ...more

Only a handful of food products are impervious to spoilage—dried rice, salt, sugar—but even among those, honey is unique in that it remains edible without any preparation necessary. It's like this: if you came across honey in an Egyptian tomb, as archaeologists have, you could ...more

My stock alarm clock does exactly what it's supposed to—it wakes me up. But for those really tough mornings when I just need to hit the snooze, getting my head out of the sheets is a no-go. This leads to trying to find my phone with an outstretched arm, which means knocked-ove ...more

Will the predicted apocalyptic date—December 21st, 2012—really be the end of the world? In this ongoing five-part series, we examine what would happen if zombies, nuclear weapons, cyber wars, earthquakes, or aliens actually destroyed our planet—and how you might survive. End ...more

The Problem If you are working on a car restoration project, then you are going to faced with rust damage. This problem can’t be overlooked, as the entire project depends on repairing and eliminating rust. This would be like laying down new carpet to a house that was flooded, ...more

I've never understood the phrase "smooth as a baby's bottom" to describe a really close shave. I mean, have you ever touched a baby's cheek? It's even smoother and a lot more sanitary. It just doesn't spew off the tongue as nice. But whatever you say, getting that close shave ...more

Engineer Anthony Levandowski has officially been kicked off Uber's driverless program by a judge as the company's legal war with Waymo continues. Uber's former autonomous vehicle lead was barred from developing Uber's driverless tech as a result of a court mandate on Monday. ...more

Whatever you think of Google's new Pixel phones, the one thing we know for sure is that these are the most polarizing devices in recent memory. On the one hand, we've seen reviews in which longtime Android users say they'll be walking away from the OS all together thanks to Pi ...more

What Is Graphene? Graphene is a very thin layer of graphite. Graphite is made out of carbon (the mother of all elements), and is normally used in pencils. Graphite is also used for brake padding in larger vehicles, the batteries in laptops or portable gaming systems, and in t ...more

Whether it's for health reasons or just to look better, many of us want to get in shape. It's a long process that starts with nutrition, and dieting is never easy. Fortunately, there are some great food-tracking apps that will make it a lot easier to become a healthier version ...more

Welcome back, my budding hackers! People often ask me, "Why are you training hackers? Isn't that illegal?" Although I usually give them a short version of this post, there are MANY reasons why YOU should be studying hacking. Before I begin, I want to re-emphasize to all of y ...more

Huawei's push into the US market has by no means stopped, even despite the recent US government pushback. Huawei has already released their top-notch flagship device from 2017, the Mate 10 Pro, and a couple great budget and midrange devices. Their latest release offers an upgr ...more

Will the predicted apocalyptic date—December 21st, 2012—really be the end of the world? In this ongoing five-part series, we examine what would happen if zombies, nuclear weapons, cyber wars, earthquakes, or aliens actually destroyed our planet—and how you might survive. End ...more

I know, "Steamdown" conjures images of a hoedown, but "Steampunk prop breakdown" is a bit of a mouthful, I thought. Anyway, I'm going to show you how I made my very first Steampunk prop! It doesn't require any tools at all, just some glue and some parts from the hardware stor ...more

If you're anything like me, you probably rinse your mouth out after you brush your teeth. I know technically you're supposed to not rinse your mouth out after brushing, but I just can't stand the feel of the excess toothpaste in my mouth. It's a surefire way to dry it out. To ...more

About a third of the methane released into the environment comes from the production and transport of natural gas. The gas leaks as it moves along the transport chain from gas wellheads to market. To trap methane and produce a useful product in the process, a group of scienti ...more

This year's I/O was all about bringing Android into the future and onto new devices. On top of announcing the upcoming "L" release of its mobile OS, Google showcased Android Wear, Android Auto, and Android TV. With a unified design language and notification mirroring, the var ...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

When it comes to shooting games, battle royale titles like PUBG and Fortnite have come to dominate the scene, leaving other sub-genres like top-down and third-person shooters living in the shadows. They're far from irrelevant, though, as evidenced by all the great games releas ...more

UPDATE: The P20 and its variants are officially available now. However, there's no official North American variant. You can purchase the international version of the P20 Pro or P20 Lite on Amazon, but be aware that it may not work perfectly on US carriers. As we approach the ...more

It's that time of year again. The world's largest electronics companies are sending representatives to the annual Mobile World Congress event in Barcelona, and for gadget lovers like us, that means we'll get our first look at some of this year's biggest upcoming flagship smart ...more

It's that time of year when high school students say goodbye the their past four years of coddling, ready to enter the "real world" and the next chapter of their lives—college. It's a time of growth, change, and new friends, along with all the timeless memories that go with t ...more

Climbing into bed and shutting your eyes each night is heavenly—but waking up the next morning isn't. We all hate dragging ourselves out of the comfort of sleep and into the groggy, exhausting work day. Yet starting your day doesn't have to be awful if you know how to hack you ...more

If you're a Steampunk (or costumer of any variety) and you don't know what Rub 'n Buff is, this tutorial will make your life so much easier. You have no idea. So, what is Rub 'n Buff? Well, it's a product made of wax and very, very fine metal grit. You can rub it on any smoot ...more

Back in 2007, YouTube user HouseholdHacker posted a parody video on how to make a high-def speaker for under a buck. MythBusters took on the challenge and busted it. Although that particular method doesn't seem to work, that doesn't mean you can't make your own speaker for le ...more

Many people find Steampunk problematic for a whole host of reasons, not least of which is the glorification of an era of Western history that featured institutionalized slavery, racism, sexism, elitism, and many more -isms. Today, Steampunks frequently get accused of subtly o ...more

Not that long ago I wrote an article discussing what it would be like, realistically, if you were to accidentally travel back in time to the Victorian era. At the end of that article, I mentioned that the best thing you could bring with you on a time-traveling adventure is a K ...more

You don't have to be hearing impaired to appreciate one of Android's best audio accessibility features. This one can notify you when a baby is crying, a smoke alarm is going off, or when various nefarious sounds such as breaking glass are heard. It's a native feature for most ...more

Thanks to numerous smartwatch deals this holiday season, many people are receiving their first one. But what exactly can they do? In regards to fitness, quite a lot. With a growing list of sensors and software updates, these small devices can be the very thing you need to ulti ...more

Wonder Woman has always been a Halloween and cosplay staple. It's a costume that's both dependable and stylish — just like the Amazon who wears it. This year's reprise with Gal Gadot offers a fresh take on the old standby, with more muted colors, a tougher demeanor, and a deci ...more

When it comes to automation apps on Android, Tasker is still the king of the hill. For a price of $2.99 on the Google Play Store, it's a great buy for any would-be tinkerer that would like to get into automating actions on their Android device. Then, when you consider that the ...more

It may sound irrational, but I bet a lot of you actually avoid doing any work at work—but not on purpose. You might be simply struggling with motivation, or you might just be overdosing on the caffeine. Whatever the issue, getting focused takes lots of time and effort. But we ...more

I don't know how many of you had this experience in your youth, but when I was a kid, I used to actively think about what would happen if I suddenly woke up in a fantasy land, or were to pass through a portal into another space and time. I knew it wouldn't really happen, but w ...more

Thrift stores! As a Steampunk, they can be your best friend, but it's easy to make a tragic mistake. This hands-on guide will help you navigate the murky waters of successful thrifting in order to find the hidden gems that will make your Steampunk outfit complete! Thrift Stor ...more

Amber, emergency, and public safety alerts on an iPhone are loud — startle-you-to-death loud even. They can happen at any time, day or night, and sometimes back to back when you're in a big city. Those blaring sirens can wake you from sleep, interrupt an important meeting, or ...more

Battery management is a never-ending struggle. To be on the safe side, you likely won't want to leave your home with less than 100% battery, but continually checking your charging iPhone is a hassle. Instead of continuously monitoring your battery's power level, have your iPho ...more

It's always a big deal when the company that makes Android releases a new phone. Google's Pixel series has made a name for itself in three short years behind its camera prowess, but now it's time to start competing with the major players. That said, Google should like how thei ...more

Phone specs get better and better each year, and multiplayer mobile games are right there with them. Instead of playing solo, jump into some real-time gameplay with co-op and player vs. player modes, and battle friends, family, and strangers from around the world. But which mu ...more

When it comes to platform games on mobile, endless runners are some of the hardest to play since they can go on seemingly forever. There's always room for improvement since your goal is to beat your previous score (or someone else's high score). But which endless running games ...more

Silence spreads over these mountains like nothing I've ever felt. If I didn't have Moby blasting in my earphones, there'd probably be no other sounds around. Well, except for someone, Phil probably, murmuring in a nearby tent just low enough to make his words indiscernible. W ...more

When I review apps, I'll oftentimes end up downloading at least one or two "bad" apps that either lied about their functionality or were riddled with ads. These apps, while not as harmful as malware, can still be a major headache. This got me thinking about the other bad apps ...more

There's an iOS feature that benefits many users, but it's absolutely vital if you wear AirPods or other headphones models connected to your iPhone. A large number of iPhone users don't even know about it, especially since it's disabled by default and hidden deep in the system ...more

According to the CDC, one in four U.S. adults has a disability, where limitations can involve vision, cognitive function, hearing, motor skills, and more. That's why the iPhone has accessibility features; so that everyone can use an iPhone, not just those without any impairmen ...more

When you want a helpful task manager on your iPhone or iPad, any of the nine apps in this guide should be at the top of your list. But we'll review each app's features to help you determine which one might be best for your workflow. Using a task manager on your iPhone or iPad ...more

Apple's new iOS 16 software update is finally here, and there are over 350 new features and changes for you to enjoy on your iPhone. There are major lock screen and home screen improvements, a pleasant surprise for the Contacts app, and tons of new upgrades to Safari, Mail, Me ...more