# Practical Application Search Results

### How To: Calculate acceleration with a practical application

This academic tutoring video, made by BrainKindle, defines acceleration in simple to understand terms and shows how to measure acceleration. He shows how a plain cardboard box, pencil and string are used to make a simple pendulum, which moves as the car accelerates. Using data from the arc of the pendulum, he shows how to calculate acceleration. This is an easy method to use if you do not have an iPhone with an application to measure acceleration. A great trick for a budding scientist or phys...

### How To: Prank your roommate with 60 yellow page books

Phone books are sort of past their point of relevancy, but that doesn't mean they don't have any sort of practical application like for practical jokes. Learn how to fill up a room with pages from the yellow book by watching this prank-pulling video tutorial. Use this as inspiration for one of your April Fools Day pranks!

### How To: Make a flexible aluminum electroluminescent display

Make a flexible aluminum electroluminescent display using aluminum foil, EL phosphors and a simple electrolytic etching bath. This video shows the chemical process behind etching foil in an electrolytic bath, and develops it into a practical application for it by creating an electroluminescent caution display.

### How To: Build an Android application for mobile devices

This video tutorial is about Android, and no it's not a robotic creature, it's a software platform and operating system form mobile phones and PDAs. The Android system is based on Linux and was developed by Google and the Open Handset Alliance. Code is managed in the Java language, but can be written in C also, although C is not officially supported. A lot of the new cell phone and other mobile devices will be running off of Android, so know how to use it.

### How To: Tie a slip knot

The slip knot, also called a running knot, is a very diverse knot. It's practical application ranges wildly from crochet and knitting to building a noose. The basic function of a slip knot is to create a flexible knot, with one end tied to the middle for greater mobility. Check out this how to video and learn how to tie a slip knot, because you never know when you might need it.

### How To: Face smash a sleeping roommate

Face, meet table. Another great practical joke video by PrankVote where they attack Ernie in his sleep. Find your sleeping friend, place a small table over his sleeping face and blow an air horn in his ear. Be assured this will result in a very angry and delusional roommate. However this is a great way to pull a face smash practical joke on any sleeping roomate. Use this as inspiration for one of your April Fools Day pranks!

### How To: Prank Someone in the Bathroom with a Hidden Message in the Mirror

Here's a trick that has the potential to creep anyone out. Watch this practical joke how-to video to learn how to write a hidden message on a mirror. Use anti-fog solution and a q-tip to write a secret message on a mirror to scare someone coming out of the shower. You'll have loads of fun with this practical joke. Use this as inspiration for one of your April Fools Day pranks!

### How To: Write a prank ghost message inside of an egg

Want to prank someone over breakfast? Well here is the ultimate practical joke. Follow along with this practical joke how-to video to learn how to write a secret ghost message on an egg that will appear on the inside of the egg after it has been boiled. All you need to write the ghost message on the inside of an egg is a 50/50 solution of vinegar and alum. Watch this video tutorial and see how it's done. Use this as inspiration for one of your April Fools Day pranks!

### How To: Pull Off the Exploding Egg in the Microwave Prank

This how-to video shows a practical joke that is super easy to do and no one will be able to trace it back to you. Prank someone and ruin their meal by rigging the microwave with a surprise egg. Follow along with this practical joke how-to video to learn how to pull off the exploding egg in the microwave prank. All you really need for this prank is a microwave, tape and an egg. Watch this video tutorial and learn how to play the egg in the microwave prank. Use this as inspiration for one of y...

### How To: Learn practical Japanese phrases for traveling

Learn simple Japanese phrases today in this video series with expert Yuu Asakura. Yuu gives you demonstrations for speaking and recognizing Japanese words in print. You will be able to arrange subjects and verbs in sentences, say "Please," and get around in Japan.

### How To: Prank Someone with an Exploding Envelope Practical Joke

With a little set-up, you can surprise and unsuspecting victim with an explosive envelope. When they try to pull out the envelopes contents a loud pop is sure to freak them out. You will need an envelope, a party popper, and two pieces of cardboard. Watch this video pranking tutorial and learn how to do an exploding envelope practical joke. Use this as inspiration for one of your April Fools Day pranks!

### How To: Make a spray can booby trap

We know that April Fool's has just passed, but that doesn't mean you can't still prank your friends and family in the most satisfying way possible (satisfying for you, of course, because it'll suck for them).

### How To: Get Back Lock Screen Widgets in Android Lollipop

Being fixated on all of the great additions to Android 5.0 Lollipop, it can be a little difficult to take notice in the features that went missing. For instance, lock screen widgets. It's speculated that the lack of practical use for lock screen widgets and the implementation of the revamped Lollipop lock screen may have lead to their departure, but some of us want them back!

### How To: Make a homopolar motor

Turn yourself into an electromagnetism maestro with one of the simplest motors known to man—the homopolar motor. It's the "simplest motor" because of its absent polarity change. The magnetic field does not change the direction or strength. It consists of only three parts; copper wire, round magnet and battery. It produces really low voltages, which means there's no real practical application for this motor, but it sure is fun to make! Try your hands at the homopolar motor—watch the video and ...

### How To: Prank Your Friends with a "Magic" Light Bulb That Lights Up in Your Hand

Kipkay shows you how to make a magic lightbulb like the magicians use. Great practical joke or prank. All you need is a couple of lightbulbs, an LED and some batteries.

### How To: Prank a co-worker with the coffee trick

Mad at that co-worker who got the big promotion? Or just a little bored in the office? This step by step prank tutorial video shows how to pull a harmless practical joke on a co-worker by building a false bottom for a cup of coffee and filling it will marbles or beans. Use this as inspiration for one of your April Fools Day pranks!

### How To: Splice and edit music/audio files in Movie Maker

When it comes down to the very basics of movie making, video editing and sound editing are crucial for a film that makes sense and has pleasurable flow. Thus, even if you have the best creative vision in the world, it will not translate to the big screen unless you know how to perform these practical applications.

### How To: Booby Trap Someone's Cup for a Great April Fool's Prank

April Fools is the one day of year you can go wild with pranks and practical jokes. It's never too early to learn a new prank, and this one is particularly fun. All you need is a paper cup, some plastic wrap, and an exacto knife.

### How To: Do a Wolf Whistle

Use the piercing whistle in this how-to video on strangers at your own peril. Although it's commonly depicted as a pick-up method, it may not be particularly effective in that regard. All the same, the wolf whistle is a classic and will definitely be attention grabbing. Watch this video, and you may even be able to apply it as a practical joke of sorts.

### How To: Take off your shirt as fast as possible

Impress your friends with this practical joke. Follow along with this prank how-to video, as Sam demonstrates how to take off his shirt as quickly as possible. We are sure there are various situations where this special technique could come in very handy. Practice taking your shirt off as fast as possible. Use this as inspiration for one of your April Fools Day pranks!

### How To: Make a prank exploding cigarette

Here's a good practical joke to scare friends and maybe even encourage them to quit smoking. All you need is access to their cigarettes and some blanks from a toy gun. Watch this video pranking tutorial and learn how to make an exploding cigarette. Use this as inspiration for one of your April Fools Day pranks!

### How To: Pull some college dorm room pranks

The college experience is just not complete without utter humiliation. These practical jokes are funny enough to bother pulling on friends, without being so mean as to lose the friends. Learn how to execute these tricks by watching this prank-making video tutorial. Use this as inspiration for one of your April Fools Day pranks!

### How To: Plant a Condom

This how-to prank video will teach you how to plant a condom that will grow when watered. Learn how to grow a plant using condoms and create a whole new vibe in your house. Condom plants are practical and do not require a lot of time watering or grooming. Grow a garden of condom plants and create a new conversation piece at your next get-together. This video tutorial shows a great way to pull a practical joke on friends. All you need to pull off this prank is: an empty toilet paper roll, a co...

### How To: Prank your wife or maid with the mop prank

Just Follow these simple instructions and you'll be able to execute this hilarious Mop Prank. You'll have your victims going crazy. Watch this video to find out how this prank is done. Great practical joke for April Fool's Day. Use this as inspiration for one of your April Fools Day pranks!

### How To: Put a safety pin through your finger w/o pain

Put a safety pin through your finger with no pain. You can scare and gross out everyone with this cool and easy practical joke. Use this as inspiration for one of your April Fools Day pranks!

### How To: Tie a cow's tail for surgical or practical purposes

A cow's tail might be in the way of a variety of veterinary procedures or other practical functions. In order to get the tail out of the way, the cow's tail may be tied. Learn how to tie a cow's tail for surgical or any purpose without hurting the cow or damaging the bones by watching this video veterinary tutorial.

### How To: Make a Long-Sleeved Draped Cardigan with Gianny L

A cardigan is greet for the winter months, but not very stylish, unless… you make one that's draped. Stay warm while looking trendy with this DIY draped cardigan idea from GiannyL.

### How To: Reuse food containers for makeup storage

You already drop mad stacks for your MAC eyeshadows and Lancome blushes - why not save money and go eco-friendly with reusable, recycled makeup organizers?

### How To: Style a scarf ascot knot

Learn how to style a scarf into the ascot knot. Susan Wagner shows you the ins and outs of scarf-tying with her fashionable pink scarf. The practical ascot knot is a basic knot that can be used for scarves.

### How To: Crack and open a combination lock

This video won't show you how to crack a safe but it will show you the next best thing: cracking a combination lock or master lock! We do recommend only trying this on a lock you have forgotten the combination to and not other unlawful purposes. Watch this video tutorial and learn how to retrieve the combination from a lock. Hack your own lock or your friends and you have the potential for great practical jokes.

### News: This Advanced Diver's Helmet Takes AR to the Depths of the Ocean

The headsets of tomorrow offer some amazing possibilities in both gaming and work, but what we've seen so far only begins to scratch the surface. The US Navy saw the potential to use augmented reality in a helmet to provide divers with an incredible amount of information we have so far only seen in Hollywood movies.

### How To: Play practical jokes using your guitar

In this video, we learn how to play practical jokes using your guitar. The first trick is called the jack in the box. First, take your pick and put it in between your strings and slide it down. Then, put your hand over it and play the jack in the box song. The next trick is to give the illusion you are tuning your guitar in the middle of a song. You will cover your fingers with your forearm to give the appearance and play with your other hand to make it look like it's being tuned. The last tr...

### News: University of Maryland Demonstrates the Future of Medical Procedures with Augmented Reality

Could the technology that powers games like Pokémon GO be used for surgery in the near future? Researchers at the University of Maryland think so.

We're inching closer towards the singularity—that point where technology advances to the steepest slope of the logistic function S-curve and simply skyrockets at a rate we've never seen before. Somewhere along the way, the line between humans and the tech we rely on will become blurred, and MIT's latest project might very well be a step in that direction.

### How To: Speak Lebanese Arabic (Hotels)

Learn practical Lebanese sentences to use in hotels. Video: .

### How To: Speak Lebanese Arabic (Valentine's Lingo)

Learn practical Lebanese sentences to use around Valentine's

### How To: Set up the ultimate ketchup prank

You must have a certain attitude to appreciate practical jokes and pranks. Your friends (or targets) may not appreciate pranks as much as you, especially messy ones. The messy pranks are the ones that are less likely to provide a laugh from your victims, at least not right away. This ketchup prank is one of those.

### How To: Make Your Friend's Soda Overflow by Using Prank Ice Cubes with Mentos Frozen Inside

This is an awesome joke you can do on an unsuspecting friend or coworker. Learn how to pull a soda prank using Mentos ice cubes. Watch this practical joke how-to video to find out how to carry out the soda prank on someone using a Mentos frozen ice cube and soda. Everyone loves a cold cup of soda, so they won't be able to resist some frozen ice cubes rigged with Mentos inside. Use this as inspiration for one of your April Fools Day pranks!

### How To: Prank a shower head with chicken bouillon

Here is a very easy and simple practical joke to pull on your friends. Putting a bouillon cube in the head will make the person smell like chicken broth. This prank also works with a lifesaver to make the shower stink fruity and the joke victim feel sticky all day. Watch the instructional how-to video to learn the step by step process of rigging the shower head with a chicken bouillon. Use this as inspiration for one of your April Fools Day pranks!

### How To: Make a Prank Electrified Pen

This how-to video shows a way to rig an ordinary pen to give an unsuspecting victim an electric shock whenever they click it open. To pull of this practical joke you will need a pen and a lighter. Follow along with the steps in this pranking tutorial and learn how to build this shocking pen. You'll have hours of endless fun doing the electric pen joke on your friends. Use this as inspiration for one of your April Fools Day pranks!

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