Checking the waveform on a car plug-in inverter, like the type you would use to power a laptop computer in a car. I used my NLS MS-215 Miniscope to view the waveform. As you can see it is much more like a squarewave than a sinewave, like a staircase waveform.
Calculating resistance and power isn't hard... and, as David explains, knowing Ohm's Law and the Power Triangle can be darn useful when you're designing a project, sorting out power supply issues, or want to keep from burning your car down.
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
Remember what life was like before your iPhone? Before there were palm-sized smartphones with seemingly endless features, there were phones like Motorola's RAZR that peaked with its embedded camera. Before that, there were simple flip phones with texting capabilities, bulky tw ...more
Just the other day, we featured Perry Watkins' "Wind Up" mini car, plus his extreme lowrider, the "Flatmobile". Both impressive. But somehow I missed Watkins' most delightfully absurd vehicle. "FastFood" is a 130 mph Queen Anne dining room table, complete with the fine silver ...more
Anyone who follows the TSA blog, run by “Bob”, will know that from time to time the agency attempts to offset the ballooning negative public opinion directed towards it, and the openly criminal behaviour of its employees, by bragging about “dangerous” items that it has discove ...more
What happens when a bunch of Bollywood filmmakers unleash their imagination with the aid of Maya and After Effects (plus lots and lots of paisas)? The sci-fi flick Enthiran (Robot), the most expensive Indian film ever produced. Non-stop action, violence, explosions... absolut ...more
Not only does this solar-powered cinema have all the trimmings of a great movie theater — ticket booth, brick façade, Ionic columns, popcorn machine, fancy art deco signage —, it is itself remarkably trim: The Sol Cinema was commissioned by media arts charity Undercurrents an ...more
In this tutorial, we learn how to operate the solar powered vent system in a 2010 Prius. Prius models that come with a moon roof also have a solar powered roof. The control switch is on the left hand side of the steering wheel. With the ignition on and the switch turned on, yo ...more
In this tutorial, we learn how to read the information displays inside a 2010 Prius. There are a lot of features on the Prius that can improve your fuel economy. The energy monitor and hybrid system indicator can help you save gas and tell you how your car is running, along wi ...more
In this tutorial, we learn how to jump start a car using another car's battery. First, you will need to position the two cars in front of each other. Turn off both of the cars completely, then attach the jumper cables. You need to connect the positive post of the dead battery ...more
Electrical diagrams are hard to read for all but the most mechanically-inclined, and the ones for the power windows on cars are notoriously complicated. This three-part video will teach you how to read these diagrams and make sense of what you see. Part 1 of 3 - How to Read a ...more
If you own a Toyota Tundra and are looking to change things up a bit inside your car, this tutorial may be what you need. In this video you'll find out how to install a TRD supercharger to your truck. More specifically, a 2008 Toyota Tundra 5.7L V8. Adding a supercharger is a ...more
Or at least that's what Nick Homer and Stewart Clyde, students at Brigham Young University, claim. Nick and Stewart say: "Of course we get all the ladies..." But sadly their chick magnet has been banned: "Two twelve volt car batteries power the broken wheel chair moving the ...more
In this tutorial, we learn how to clear the check engine light on your dashboard. This could be caused from an over-boost from the turbo charger that the engine does not recognize. The solution is to grab a tuner device and plug it into the car. Wait for it to power up, then g ...more
In this video tutorial, viewers learn how to solve power steering moans. Users will need a vacuum pump. Begin by filling reservoir about half way full. Then draw a vacuum of approximately 20"/Hg and let the vacuum sit for 5 minutes. Now recheck the fluid level in the reservoir ...more
Like a timing belt, a serpentine belt is an important tool that helps make sure that various tools are working. A/C, alternator, and power steering pump are just a small set of examples. Finding the right one for your car is easy, but adding it to your car can be a very diffic ...more
In order to clean and restore your headlights, you will need the following materials: razor blades, tape, liquid rubbing compound, and a power polisher. Tape the area surrounding the headlight. To remove the yellowing film, scrape it with a razor blade. This is an alternative ...more
Gas prices haven't significantly lowered for some time and it looks like they won't either. So some people are trying to find another way to fill up their cars in order to get to work or wherever else they need to go. One way is by making ehtanol fuel or gas. This is a great w ...more
It's simple: if you've got a brushed motor, you'll want to break it in under controlled circumstances before taking it out into the world. Why break in your engine? The main idea of breaking in your engine is to wear down your engine's brush so as to maximize surface contact w ...more
Have your battery tested. If your battery is at least 3 years old, take it to a certified automotive repair facility. You do not want your battery, whose power is reduced by 50 percent during the cold weather, to go dead while you're in the middle of a snowstorm. If they are y ...more
Last year WonderHowTo's favorite daredevil Travis Pastrana attempted to land the world's very first monster truck backflip. Unfortunately, it didn't quite work out as he had hoped. Here's what happened: Now, one year later, Pastrana's fellow Nitro Circus stuntman, Cam McQueen, ...more
Want to learn how to harvest the sun? Just watch this science experiment video to see how to convert sunlight into hydrogen fuel. It's simple and environmentally friendly. You'll need a multimeter, a solar panel, some crocodile clips (or alligator clips), glass, water and car ...more
For most automotive applications a battery needs to supply a lot of current for a short period of time to turn over the engine and get the car started. With the engine running, the car's alternator produces all the power the car needs. Thin plates inside a starting battery inc ...more
This vehicle video tutorial contains a basic testing procedure using an automotive fuel pressure gauge as a detection tool. Correct fuel pressure and fuel pressure regulator operation is essential for your truck or car's engine to operate properly. Many engine run-ability prob ...more
Anyone that has ridden in a car knows that when the driver speeds up quickly, you are pressed back into your seat, and that when the driver brakes quickly, you are pushed forwards. But what would you think if the force that pushes you backwards was pushing something else forwa ...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
I'm back with the third part to my laser weapon series (see part one and two), and I'll be explaining the function, application, and potential of semiconductor lasers, aka laser diodes. Surely, most of you have used a laser pointer at some point. Whether purchased at a dollar ...more
We've all heard of the power that red wine holds. It can help lower risks of heart disease, boost your brain power, and can even recharge your car battery. But last year, a group of Japanese physicists made headlines when they announced that they could induce superconductivity ...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
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
The fifth (B-5) of the National B License Tests in Gran Turismo 5 on the PlayStation 3 is all about basic cornering. This video will show you how to get the gold trophy! If you haven't unlocked these tests yet, all you need to do is purchase your first car. B-5: Basic Corneri ...more
China's latest futuristic project is a massive "3D Express Coach", a clever project proposed by Shenzhen Hashi Future Parking Equipment Co. as a solution to traffic in the extremely overpopulated country. The gigantic bus will allow cars less than 2 meters high to travel unde ...more
Sounds like an odd bragging right, but hold your horses, artist Hannes Langeder's handmade Porsche is pretty damn interesting. "The bicycle Porsche functions as signifier for the fascination with the figure of an automobile that has lasted since the 1950s; yet Hannes Langeder ...more
Can you barely keep your eyes open at work? So bored you could sleep through the entire day? Seinfeld's George Costanza built a bed under his desk, but we'll tell you how to be a bit more subtle. Here's some tips on how to get a some quick shut-eye at work. You Will Need: • ...more
Learn how to build a mini hovercraft. With a few items found in almost any desk or tool drawer, you can make your very own mini hovercraft capable of gliding over any flat surface. You Will Need * A spill-proof sports cap from a plastic water bottle or sports-drink bottl * A ...more
Whether you have to move into your car or you want to, there are some bases you need to cover. This Howcast guide demonstrates how to live out of your car. This is also helpful for cross country trips. You Will Need * Pillows * Blankets or a sleeping bag * A cooler * A camp s ...more
If you call yourself a hobbyist or a kid at heart, you know that remote-controlled vehicles are more than just fun. If you're a serious R/C man, you'll know all about doing everything to your model truck or car, like fixing wheels, vamping the pinion gears, waterproofing, trou ...more
Infiniti is like no other car, it has emotion, it has soul, it inspires. There's a difference between being physically transported and emotionally moved, and you can tell them apart when you sit inside this magnificent automobile. Although the Infiniti is like a dream car, it ...more
Infiniti is like no other car, it has emotion, it has soul, it inspires. There's a difference between being physically transported and emotionally moved, and you can tell them apart when you sit inside this magnificent automobile. Although the Infiniti is like a dream car, it ...more
A CNC router machine is probably the most useful tool a hobbyist can own, but the price for a CNC machine on the market is way more than the average hobbyist is willing to spend. You can build your own CNC with very basic tools, little knowledge of machinery, mechanics, or ele ...more
Gran Turismo 5 cars, such as the Suzuki Cappuccino, drift with a lot of body motion and weight shifting. Get free Gran Turismo 5 tips and hints on how to drift with front engine rear wheel drive cars, such as the Suzuki Cappuccino with lower power in this free video. Drift wit ...more
Watch this automotive video tutorial to see how to scan your automobile for diagnostic trouble codes. If you see a "check engine" or a "service engine soon" light in your instrument cluster; your car has stored a diagnostic trouble code. This means the computer system on your ...more
In this series on weaponized lasers, I'll be exploring the function, operation, strength and building instructions for three basic laser weapons; CO2, Diode, and Flashlamp. These laser types are just a few of many, selected because of their simplicity and basic construction (d ...more
Chris Burden's latest piece is a portrait of L.A.'s hot mess of traffic, entitled Metropolis II. The artist has constructed a miniature highway system, complete with 1,200 custom-designed cars, 18 lanes, 13 toy trains and tracks, and a landscape of buildings made with wood blo ...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
Understandably, the tragedy in Japan has substantially risen the level of worldwide radiation-related hysteria. So much so, as an alternative to stampeding health food stores for iodine tablets, crafty individuals and organizations are hacking together personal radiation detec ...more
Look what came in the mail today! The File Cabinet from hell. Die hard Jackass fan and file cabinet mod-junkie Jeff Dahlin tracked us down to drop off this gem at WonderHowTo HQ today. It is his official entry for the Jackass Prank Contest. It has three wheels.... so it's a tr ...more
It is the file cabinet from Hell. Look what came in the mail today! Die hard Jackass fan and file cabinet mod-junkie Jeff Dahlin tracked us down to drop off this gem at WonderHowTo HQ today. It is his official entry for the Jackass Prank Contest. It's a three-wheeler, does tha ...more
Feeling unprepared for the next earthquake? In this tutorial, learn what to do and what not to do to survive "the big one". You'll be surprised to learn that hiding in a doorway is a myth! You Will Need: • A safe place • Sturdy shoes • A fire extinguisher • A flashlight ...more
Today's fancy cars come with all sorts of options, from power mirrors to working seat belts. Some of us condemned to live in the reality of capitalist recession have no car, or perhaps a very modest one. But your modest car can still have some cutting edge technology wedged in ...more
How do you review an app that refuses to work for you? I was quite excited this week to review iCinegraph, an iPhone App that simplifies the creation of cinemagraphs. However, if this was a car review it'd be the kind of review where the car under consideration is never able t ...more
If you haven't had a pile of pipe and fittings to play with before, it's hard to see what is so cool about a plain, plastic pipe. All it does in the house is carry the poop away. Really, who cares? It's hard to even decide where to begin here. The first chance I personally ha ...more
Back in the Super Nintendo days, playing one RPG after the other, memorizing maps and mazes became second nature if you didn't want to look at the mini map or get lost often. I would make it a point to memorize corners and the overall structure of the dungeon or location, so t ...more
First off, let's explain the story that inspired the phot I'm using for the post. Friday night, restaurant gig at Vallartas Mexican Restaurant in Lutz/Land O' Lakes, and I was making balloons for all the children throughout the evening. As I'm about halfway through my shift, I ...more
We've gathered some of our favorite pranks with the seasonally appropriate for all you college kids out there. You're more than likely cohabitating with a complete stranger, and what better way to make a good first impression and develop a strong personal relationship than sub ...more
Oh, LifeHacker, we love you. You've brought us so many handy HowTo's: Hack Wireless Internet, Bypass Blocked Websites, Convert a Laptop Into a Projector, Watch TV & Movies on the Web For Free, 10 Must-Know Google Privacy Settings, and more. And now, another great one: LifeHac ...more
I love making beeps and bloops with the Arduino pitches library, but sometimes archaic 8-bit tunes just don't cut it. Whether you want your robot to terrify your enemies with a demonic synthetic voice, you just need a pocket boom box on the go, or you want to a miniature guita ...more
How many of you know all the amendments of the Constitution? Do you even know how many there are?? Well, many of the people I speak to don't. And let me tell you, that's a bad thing. Knowing even the basics of the Amendments can have a profound effect in your lives. Ever got p ...more
Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the "alarm administrator" that there is an intruder entering the previously designated boundaries. The trig ...more
How To:
Transform Your iPhone Portraits with This Must-Know Refocusing Tool in Photos
How To:
17 New Accessibility Features Coming to iPhone and iPad with iOS 18 and iPadOS 18
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Apple News Gives You More Options for Automatic Downloads on iOS 17.5
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Apple Has a Killer New Word Game Puzzle Called Quartiles on iOS 17.5
How To:
Apple Integrates Game Center Leaderboards into News+ Puzzles with iOS 17.5
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11 Big New Features for Apple News on Your iPhone with iOS 17.5
How To:
Apple's iOS 17.5 Gives Your iPhone 32 New Features and Changes — Here's Everything You Need to Know About
How To:
Apple's Repair Mode for iOS Makes Prepping Your iPhone to Be Fixed Easier and More Secure
How To:
15 iPhone Tips for Busy Users to Maximize Your Productivity
Home Screen Customization:
How to Hide and Show Specific Home Screen Pages on Your iPhone
How To:
Make Your iPhone Do All Your Talking for You on Calls and in Person
How To:
Add Website Shortcuts to Your iPhone's Home Screen for Fast Access to Web Apps and Bookmarks
News:
Apple Pencil 3 Is Almost Here — And It Comes with Squeeze Gestures and These Other Features
How To:
The Messaging Trick You Never Knew You Needed
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Customize and Use Control Center on Your iPhone for Quick Access to Your Most-Used Apps, Features, and Settings
How To:
Identify Any Song Playing on Instagram, TikTok, and Other Apps on Your iPhone Using Shazam
How To:
Download and Install iOS 17.5 Beta on Your iPhone — And Try New Features Before Everyone Else
How To:
Download and Install iPadOS 17.5 Beta on Your iPhone to Explore New Features Before Everyone Else
How To:
Update Your iPhone's Lock Screen with an Attention-Grabbing Note, Reminder, Warning, or Other Custom Message
How To:
Your iCloud Email Lets You Create Aliases to Protect Your Primary Email Address and Organize Your Inbox
How To:
Apple's iOS 17.5 Gives Your iPhone 32 New Features and Changes — Here's Everything You Need to Know About
How To:
Transform Your iPhone Portraits with This Must-Know Refocusing Tool in Photos
How To:
See Passwords for Wi-Fi Networks You've Connected Your Android Device To
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7 Hidden iPhone Apps You Didn't Know Existed
How To:
Use Burp & FoxyProxy to Easily Switch Between Proxy Settings
How To:
Make Siri Say Whatever You Want Every Time You Connect Your iPhone to a Charger
How To:
Crack SSH Private Key Passwords with John the Ripper
How To:
Play Scrabble
Pro Tip:
There's a Hidden Way to Wipe Your iPhone to Get a New Passcode When You're Locked Out
How To:
Use FaceTime's Secret Hand Gestures and Reaction Buttons to Add Animated On-Screen Effects to Your Video Feed
How To:
Dial These Secret Codes to See if Someone Is Hijacking Calls & Texts on Your iPhone
How To:
Remove Unnecessary Profiles & Certificates on Your iPhone to Protect Your Privacy & Security
How To:
Set Up Wireless Debugging on Android 11 to Send ADB Commands Without a USB Cable
How To:
Create an Admin User Account Using CMD Prompt (Windows)
How To:
Dox Anyone
How To:
Make Spoofed Calls Using Any Phone Number You Want Right from Your Smartphone
How To:
Clone Any Android App on Your Samsung Galaxy Phone Without Using Any Third-Party Tools
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The Trick That Lets You Link to Specific Start Times in YouTube Videos Right from Your Phone
How To:
13 Tips Every Apple Pencil User Needs to Know for iPad
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Keep Your Night Vision Sharp with the iPhone's Hidden Red Screen
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Use Odin to Flash Samsung Galaxy Stock Firmware
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16 Harry Potter Spells for Siri That Turn Your iPhone into a Magical Elder Wand
How To:
Check if Your Wireless Network Adapter Supports Monitor Mode & Packet Injection
BT Recon:
How to Snoop on Bluetooth Devices Using Kali Linux
How To:
If 'Messages' Consumes Too Much iPhone or iCloud Storage, Don't Delete Your Conversations Just Yet
How To:
Test Your Samsung Phone by Using Secret Code *#0*#
Redstone Logic Gates:
Mastering the Fundamental Building Blocks for Creating In-Game Machines
How To:
The Easiest Way to Secretly Record Someone's Conversation with Your iPhone
How To:
Make the USB Connection on Your Android Phone Default to File Transfer Mode
How To:
Find Vulnerable Webcams Across the Globe Using Shodan
How to Hack Wi-Fi:
Cracking WPA2 Passwords Using the New PMKID Hashcat Attack
How To:
Crack a Combination Bike Lock in Under 30 Seconds
How To:
Hack Android Using Kali (Remotely)
How To:
Use Your Smartphone as a Keyboard for Your Smart TV
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Intercept Images from a Security Camera Using Wireshark
How to Hack Wi-Fi:
Cracking WPA2-PSK Passwords Using Aircrack-Ng
How To:
These Auto-Redial Apps Can Call Busy Phone Lines Over and Over Again Until You Get Through
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Write an XSS Cookie Stealer in JavaScript to Steal Passwords
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Set a Charging Limit on Your Android Device to Avoid Excess Battery Wear
How To:
Enable Monitor Mode & Packet Injection on the Raspberry Pi
