Potato Battery Experiment

Stuck behind bars? Held hostage by a guy with a flamethrower? Thanks to the wise and resourceful 80s secret agent MacGyver, these problems can be resolved by a car battery, two coins and some jumper cable. Sound absurd? Did you see this year's Superbowl MacGruber Pepsi ad? Ma ...more

In this experiment, we're going to get Mn2O3 (manganese(III) oxide) from MnO2 (manganese(IV) dioxide). Mn2O3 forms brightly red or a dark red colored crystal. It is used in Li-ion batteries, since (in a form of a crystal) it conducts electricity (much like MnO2). There isn't ...more

Not having power sucks. It can be fun for the first few hours, but if it lasts any longer than that, most people run out of things to do pretty quickly (i.e. the batteries in all their devices die). One thing that's awesome about outages is they're a great excuse to light a b ...more

Invented by Philadelphia tinsmith John L. Manson in 1858 for canning and preserving perishables, mason jars are experiencing a major resurgence in the DIY community. In addition to being a handy storage device for both food and non-food items, its old-timey, quaintly antiquate ...more

LIGHTFAKTOR is a Cologne artists collective experimenting with the "possibilities yielded by bulb (long-term) exposure and painting." The technique employed has been coined "light writing" - Wikipedia's definition: "Light writing is an emerging form of stop motion animation ...more

New technologies in current-generations smartphones allow for much faster charging—Qualcomm Quick Charge 3.0, VOOC Flash Charge, and USB Type-C, for instance, can charge a phone up to 4 times faster than traditional methods. However, the majority of phones on the market still ...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

The year 2018 was a rough one for Snap, the company behind the Snapchat app and the Spectacles wearable camera device. From executive departures to reports of slowed user growth, the company that once spurned Facebook's multibillion-dollar advances is now facing a moment of tr ...more

While Huawei smartphones haven't always been the best choice when it comes to custom ROMs, one thing that has always been accessible is the ability to unlock the bootloader. An unlocked bootloader is the first step into the magical world of rooting, but after May 24, Huawei wi ...more

While some in the augmented reality space are tweeting about future amazing immersive experiences and others are showing off cool experiments, Microsoft continues to move forward with tangible business solutions right now that show how the HoloLens can improve business. In th ...more

Google's working on a new mobile operating system called Fuchsia, and while we don't know much about how they intend to use it, we're now getting a glimpse at what the main interface will look like. First, let's talk about what we do know about Fuchsia. It's a mobile operatin ...more

ViPER4Android is a revolutionary audio equalizer for Android, something that I personally can't live without. That's the reason why porting V4A to the LG V20 was the first thing I did when I got the phone. There are two variants of ViPER4Android: FX and XHiFi. XHiFi is an olde ...more

When there's no more pickles in the pickle jar, most of you probably dump the remaining brine down the drain and recycle the bottle. While recycling is commendable, throwing out good pickle "juice" is not. You can use that leftover liquid in cocktails, bread, and potato salad ...more

Several years ago, I moved to Brooklyn, New York, just outside a Spanish neighborhood. It was here that I was introduced to chayote. Fast-forward to present day: I live in Los Angeles and buy several chayote squash a week to cook with—yes, I said several. It's so versatile and ...more

After I traded in my Samsung Galaxy S5 for an iPhone 5S, the one feature I truly missed was the Smart Remote app. My television remote was broken and the S5 saved me from, you know, actually having to get up and change the channel. But thanks to Henrik Edwards and his JustABl ...more

Baking soda is a powdery miracle. Not only is it the secret ingredient to making mashed potatoes fluffy, it can help you make authentic-tasting soft pretzels at home and caramelize onions in half the time. It's actually got lots of surprising uses you might not know about, and ...more

I love my status bar. Not only does it tell what time it is and how much battery juice is left, but it gives me cellular connection info, text alerts, and app update notifications. However, one thing is does not give me is customization. Since you're looking at it all the damn ...more

You're reading this so you're probably already safely huddled up in your house or apartment, watching as the entire planet grapples with the unfolding coronavirus health crisis. But unlike some others, you're lucky enough to already have a couple of weeks of supplies and now i ...more

Google pushed a new kind of augmented reality walking navigation to the mainstream last year, and now startup Phiar is hoping users will use its AR app in the same way for driving navigation. The company is currently inviting the public to sign up for its private beta launch, ...more

While Google isn't ready to commit to a wide release of the AR walking navigation mode for Google Maps, the company has begun testing the feature with members of its Local Guides crowdsourcing community. As a result, I've had the opportunity to test an alpha build of the feat ...more

The idea of augmented reality isn't new, but the world of smartphones is looking to push it forward in a big way. As with any platform, both product demand and technological advancements have to catch up to the industry before it can become a viable solution for daily consumer ...more

It wasn't Christmas, but for Amazon Prime members, it was darn close: Amazon Prime Day, one of the biggest shopping days of the year, came and went earlier this week. Unfortunately, there weren't many Prime Day-specific deals to be had for augmented reality fans, but that does ...more

The price tag for the Microsoft HoloLens might be out of range for the average consumer's budget, but for enterprises, like BAE Systems, adopting the AR headset is yielding a return on the investment. And for those with even slimmer wallets, Best Buy just made the Lenovo Mirag ...more

With folks drawing lines in the sand before the upcoming election this November, it's important to know where you stand on some of the most important issues: the economy, foreign affairs, domestic affairs, and apples—caramel or candy apples, that is. Yeah, so one of these thi ...more

Google's new Pixel and Pixel XL smartphones are available for pre-order right now, but the general public won't start to get their hands on these devices for another week or two. Tech reporters got some hands-on time at Google's launch event on October 4th, but camera testing ...more

Fried food is the best. That's not an opinion; that's a fact, Jack. And while fried standards like wings, French fries, and onion rings are all stellar, there's no way you should stop there. I believe that nearly anything and everything should be fried—even the healthy stuff. ...more

Store-bought marinades and sauces have an ability to jazz up the simplest items. But after a while, those favorite tastes seem a bit repetitive and mundane, and that got us to experimenting with different add-ins to make our marinades stand out. Fruits, herbs, spices—all of th ...more

It goes without saying that a pizza stone is one of the keys to making a perfect pizza. The science behind pizza stones is relatively simple: the stone conducts and holds heat, which keeps the oven temperature steady even when a cold ingredient (such as an uncooked pizza) is i ...more

Whether you call them chickpeas, garbanzo beans, or Egyptian peas, these little morsels are one of my favorite snacks—when properly seasoned, that is. Being mild in flavor on their own, they're incredibly versatile and fun to experiment with. (They're also incredibly healthy.) ...more

French fries, like mashed or roast potatoes, are the type O blood of the food world—they're compatible with just about everybody. That's why it's so sad to bring home leftover frites (that's French for French fries) and have to toss them out the next day because they don't tas ...more

Summer is here, and temperatures are rising. Instead of shelling out for an expensive new air conditioning unit, why not build one yourself with a few bucks worth of old computer parts? There's a number of ways you can go about doing this (and some really fun ways to make you ...more

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 commu ...more

If you're in the market for a new smartphone and want nothing but the best of the best, now's the time to act. Some of the greatest phones money can buy are being released as we speak, while others are still in their prime and will continue to be for most of 2024. Whether you ...more

Apart from the flashlight, camera, and apps you access via notifications, widgets, location-based alerts, and the Control Center, there's no way to open other apps straight from the lock screen that you use frequently. If you have a jailbroken device, however, you can remedy t ...more

Nintendo set the internet ablaze Wednesday night with two big announcements. First, Nintendo revealed that the Switch's paid online service will begin in September (boo), but it was the other report that really got fans excited — Mario Kart is coming to your iPhone. The news ...more

Within the coming months, software startup Neurable plans to introduce the next paradigm in virtual and augmented reality: the brain–computer interface (BCI). A BCI interprets brain signals so that devices can understand user intention from predefined selections. Relying on s ...more

Before you bite into that beautiful tomato in your garden, the tomato fruitworm, or the Colorado potato beetle, might have beat you to it. At the annual meeting of the American Association for the Advancement of Science (AAAS), researchers explained how microbes inside the gu ...more

Within the gastronomic melting pot of America, pizza was first introduced in the late 19th century by Italian settlers in cities like New York, Chicago, and Philadelphia. The slice-by -slice phenomenon gained popularity when immigrant street peddlers walked the sidewalks with ...more

The spice selection at Trader Joe's is both inexpensive and truly top-notch. According to their site, they deal with some of the highest-quality spice manufacturers in the world and, in working with them directly, they eliminate hidden costs spent on promotions, brand-building ...more

Home cooks are often quite intimidated when trying to reproduce the delicious ethnic dishes they enjoy at various restaurants. Thankfully, there are definite flavor profiles and spice/seasoning/herb combos that are very specific to various regional cuisines and cultures; with ...more

One of the hottest trends in the food world right now is "spiralized" vegetables. I will confess that I am a bit suspicious of any diet or food fad that eliminates an entire food group for anything other than physician-ordered health reasons, but something really good has foll ...more

I may be in the minority when I say this, but I love leftovers. Whenever I'm cooking for less people than the recipe calls for, I cook the full yield anyway. And when I go to a restaurant, I order whatever I want—regardless of how much I can actually eat in one sitting. For t ...more

Remember the feeling you had the moment you removed your shiny new Nexus device from its packaging and booted it up for the first time? You swiped through the app drawer at lightning speed and thought to yourself, "This is the last Android phone I will ever need, they just are ...more

With all the talk about privacy concerns recently, Google's name keeps coming up because they are a very data-driven company. As an Android user, they know basically everything about you based on your device usage. That can easily scare some people off who are worried about th ...more

One of my favorite perks of this job is the opportunity to try out all the big flagship phones each year. Whether it's rating their suitability for a particular use-case or just entering their specs into our comparison tool, we have to get our hands on all major phones release ...more

In the technology space, there are certain brands you grow to depend on. Whether it's due to a long, multi-decade track record of success, or new innovations that blow you away, some tech names accrue a rare kind of brand equity with users that's difficult to earn. That's why ...more

The idea of a perfect phone is a myth. There are lots of pros when it comes to OnePlus devices, but there are also a few things that could be better. And even if there were a phone without flaw, there are still things that you might want to customize for personal preference. T ...more

Way back, life on the range was tough and unforgiving for a HoloLens developer. Air-tap training was cutting edge and actions to move holograms not called "TapToPlace" were exotic and greeted with skepticism. The year was 2016, and developers had to deploy to their devices to ...more

It's that time of the year, y'all—when the air becomes crisp, the nights grow long, and people crave hearty, warm soups and stews. And of all the season's offerings, my hands-down favorite has to be chili: It's versatile, meaty, and above all else, it's damn easy to make. (Tha ...more

A few years ago I went hog-wild trying to achieve a zero-waste lifestyle. I didn't succeed, but the experiment taught me that we throw away things we could—and should—be using more. In ye olde days of our forefathers, people generally used every part of the animal in cooking. ...more

Eggs are incredibly important to cooks, and not just because they're tasty and a complete protein (many erratic genius/artist types make a point of eating an egg or two for breakfast). Yes, they are great when perfectly poached, scrambled, hard-boiled, and even scram-boiled, b ...more

To make soap, you need fat, and if you've seen Fight Club, you're probably well aware of where soapmaker Tyler Durden got his fat from. Liposuction clinics. If you're not willing to go that far for a perfect bar of homemade soap, you can just use some drain cleaner and America ...more

Glow sticks, a popular favor at parties and outdoor events, and a must-have on Halloween, can be traced back to the United States Navy in the mid-1960s. The military desired improved visibility during night operations, and glow sticks, with their small-size portability and lac ...more

Facebook just released its new "home on Android" last Friday, appropriately called Facebook Home. Taking a cue from Amazon's Kindle, Home serves as an "operating system" that runs over Android. While the HTC First will be the first smartphone to ship with Home out of the box, ...more

Back when I worked in the music industry, I never imagined there would be a day that I'd be able to sit in a room surrounded by virtual album covers while listening to beats, but that day is really here. However, while Spotify's collaboration with Magic Leap is a welcome bit ...more

If you've ever spent any serious time examining the Chinese tech startup world, you know that it moves fast — very fast. The tech startups hailing from Beijing and Shenzhen are moving so fast that they're now in serious competition with Silicon Valley. The latest would-be com ...more

Once upon a time in America, there was coffee and there was decaf. That's it. No capuccinos. No espressos. And certainly no Starbucks. Coffee was just coffee, something that you bought at a gas station or donut shop. If you made it at home, it was either in a metal pot or inst ...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 new iPhone 5 was just revealed yesterday, and it's 18 percent thinner and just 1/5 the weight of its 4S predecessor. It's also taller with a larger screen, which gives you a fifth row for apps now. As far as speed is concerned, it has a speedy A6 chip and can tap into wire ...more

People fundamentally distrust magicians. And they should. The illusions they proffer are just that, illusions meant to astound rather than tangible interactions and results that have weight and meaning in our real world. Our lizard brains know this, and, no matter what the out ...more