Build a Battery Powered Fan

A common misconception is that all car batteries die. This, in fact, isn't true—the majority of "dead" car batteries just don't contain enough juice to power a car, but they can still provide enough watts to keep emergency fans and lighting running, which is great when a power ...more

Hand made air conditioner made of a foam lunch box, 5 volt DC fan, 4 AAA rechargeable batteries, and some ice. This homemade AC can run on batteries and you can plug directly into any USB port. Video: .

Christmas is the time to splurge— not just with presents and food— we're talking decorations. It's that time of year when verdurous fir trees take up half of your living room, when waving elf figurines silhouette your front windows, when Rudolph flies from the rooftops, Santa ...more

With portable devices being a necessity in modern everyday life, they may be subject to overuse, improper charging, or normal wear and tear. For those people who carry around their smartphone or iPod with them all of the time, how many times have you been out and about just to ...more

It's hot this summer, but it's not that easy to cool down when you're on the go. You can't take an air conditioner with you, and a handheld fan will just tire you out, so you'll need to find more creative ways to cool down when you're on the go. One of these ways is a DIY sola ...more

Staying cool in the summer heat sometimes feels like it takes all the energy in the world. But what about a fan using no-cost electrical energy? If you're looking to keep cool during a power outage, or if you don't want to break the bank by running your DIY air conditioner all ...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

In the perpetual search for a renewable and convenient energy source, our bacterial friends have once again stolen the limelight. Since bacteria multiply so fast, they are the ultimate renewable resource. And since they are living organisms, their metabolism produces by-produ ...more

With Sprint already rolling out their Jelly Bean updates to Samsung Galaxy S III owners here in the United States, international users have already had a chance to check out Android's newest OS on their S3, but all is not gravy. It seems that folks have been noticing an incre ...more

What's the first thing you would do once you realized you were lost in, say, a desert? If you're like me, you would immediately pull out your cell phone and start dialing every number. But what if you have no service? What if your battery is dead? If you make this survival so ...more

The OnePlus 7 Pro is definitely a beast on paper. With a specs page that ticks virtually every box and a price point that undercuts the competition by hundreds of dollars, it's hard to overlook this phone. But before you get too excited, know that OnePlus has repeatedly shown ...more

The Galaxy S8, with all its new features, is shining in the news right now as one of the best phones of the year. However, users in the US may be at a disadvantage to those overseas, as it seems that the Snapdragon 835-powered S8 models underperform variants with Exynos proces ...more

So you can't figure which one to buy. It's understandable. Apple released three iPhones, each designed for a different segment of the market. But which one is right for you? The iPhone 11, iPhone 11 Pro, or iPhone 11 Pro Max? That's a good question. We recommend checking out ...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

Back in the '80s, I was just a kid with a LEGO hobby. I remember building castles and floating boats, spaceships and monster trucks, even a working LEGO train powered by battery, lights and all. But I wasn't aware of the advancements underway in the educational department—lik ...more

If you're breaking a sweat in the summer heat, but not trying to break the bank, this dead simple trick will show you how to make your own air conditioner for under ten bucks. Video: . What You'll Need 1 styrofoam cooler 2 dryer vents 1 small fan you've probably got lying aro ...more

LG announced their latest high-end device on September 6 and its specs are pretty amazing: The new V20 sports three cameras, two displays, three microphones, four DACs for high-end sound, and it's all powered by a removable battery. Seriously, it's almost to the point where L ...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

Hak5's products get a lot of attention. Popping up in popular shows like Mr. Robot, their hacking tools are bold proof of concepts with space built into the design for the community to add their own tweaks and modifications. On Friday, Oct. 27, Null Byte attended the Hak5 rele ...more

BlackBerry's focus on secure software and their new partnership with manufacturer TCL are two of the biggest factors in their recent resurgence. Last year, the company announced two new devices — the KEYone and the BlackBerry Motion. The KEYone has been available for a while, ...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

As a fan of the HTC One series, I almost always upgrade my phone soon after the new model becomes available. I purchased the M7 when it first came out, upgraded to the M8 shortly after its launch, and then jumped on the M9. However, I stopped right there. Next in line was the ...more

The long rumored and recently leaked Amazon phone has finally been unveiled, and in the interest of branding, continues down the Fire line—the Amazon Fire Phone. You can check out the full reveal here (warning: it's long), but I'll take you through all the features that sets t ...more

Since the invention of the mechanical clock, enclosure of the commons, and proletarianization of labor, the alarm clock has been the bane of our existence. While not actually evil, it does represent the constant and uncompromising glare of our owners shaking a patronizing fing ...more

I am writing this quick post in response to the recent earthquakes and tsunamis that are affecting Japan. As soon as the news broke, and we began to hear of tsunami warning for our area, I immediately realized how under prepared I was for a natural disaster. The thing that dro ...more

I like to grow vegetables all year round, and I couldn't afford the big gas bulbs, or the power to run them. The big gas bulbs: can explode can burn you and your plants cost upwards of $50 a month to operate raise the temperature in your home, causing the air conditioning to ...more

Smartphone technology has become as ubiquitous as automobiles. In Austin, Texas, a city that is widely known as the "Live Music Capital of the World," smartphones have been embraced by the music community not just as a way to document and promote, but to create music. A rock ...more

Apple caught a lot of flak for removing the headphone jack in their iPhone 7 models, but they definitely got the last laugh when preorders with a delivery date of September 16 sold out within minutes. Headphone jack or not, the iPhone 7 and 7 Plus are still highly desirable pr ...more

Update: Google's new Pixel models have been released! Check out our full guides on the Pixel 3 and Pixel 3 XL to see all the details, but we'll leave the rumor roundup intact below for posterity. Although marked by initial scandals, many regard the Pixel 2 and Pixel 2 XL as s ...more

It's possible to stream a MacBook's entire computer screen without using Apple's Screen Sharing application and without opening any ports on the target device. A hacker with low user privileges on the backdoored Mac may be able to view a victim's every move in real time no mat ...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

Tesla coils are totally insane, yet undeniably captivating. And they can be used for many things, from electric painting to dueling musical battles. But one trigger happy fellow has a different use for Tesla's lightning shooting coil. A weapon. After being inspired by the ste ...more

Giveaway Tuesdays has officially ended! But don't sweat it, WonderHowTo has another World that's taken its place. Every Tuesday, Phone Snap! invites you to show off your cell phone photography skills. Submit your best shot to our weekly competition for a chance to win an awes ...more

With give or take 250 million cars in America, odds are most city dwellers waste time hunting for parking spots. And while a smartphone app can't make free parking spots magically appear, it can aid in the searching process. The Parker app isn't new to the iPhone, but its fou ...more

How is it possible that Iron Man is not yet a reality? DVICE reports that super-powered exoskeletons are indeed within our grasp (if not quite as flashy as Hollywood SFX just yet). Real life exoskeletons fall into the realm of not-too-distant futuristic warfare. Below, five e ...more

WonderHowTo is made up of niche communities called Worlds. If you've yet to join one (or create your own), get a taste below of what's going on in the community. Check in every Wednesday for a roundup of new activities and projects. First off, thanks to all of our moderators ...more

We have seen it before (previous post: Human Powered Ferris Wheel), but it never gets any less amazing. Talk about resourcefulness. No need for electricity. Use humans to power your ferris wheel (if you had one sitting around... I wish I had one). Via Make, "At the Hindu Swas ...more