In this clip, learn how to perform the "Amazing Red Bull" trick. You will show your audience a full can of Red Bull and pour a bit out to prove it. You will then flip the can completely upside down without ANY liquid spilling out! You can also shoot something like a pencil or pen inside the upside down can to prove that there is an opening. This trick relies on a bit of slight of hand and some help from gravity. Check it out and totally amaze your friends with this cool illusion.
Need help proving the cos(a+b) = (cos a)(cos b)-(sin a)(sin b) trigonometric identity? This free video lesson will show you how. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series ...
Need help proving the sin(a+b)=(cos a)(sin b)+(sin a)(cos b) trigonometric identity? This free video lesson will show you how. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of...
The first video explains the Method of Mathematical Induction. It also gives a background of Francesco Maurolico, Pascal and John Wallis. You'll see how to apply the Method of Induction to prove the sum of odd numbers is a square.
This how-to video proves tai chi isn't just for old people in the park. You can learn how to subdue your enemy in four seconds from a tai chi master. There is a pressure point on the neck that you can press that will render your enemy unconscious. Watch this instructional martial arts video and learn how to subdue an enemy with tai chi skills.
Gas is over $4.00 a gallon all over San Francisco, so this video is all about proven methods to get more MPG from your car, from changing the air filter to giving up on using your brakes.
This is a video tutorial on how to prove congruent triangles with SSS and SAS test. SSS means side-side-side and SAS means side-angle-side. For applying the SSS test of congruency, each side of one triangle must be congruent to the corresponding side of the other triangle. For applying the SAS test of congruency, two corresponding sides of the two triangles must be congruent as well as the angle between those two sides of each triangle must be congruent. Follow the rest of the video to unders...
Like a lemon, a potato can produce electricity. This science experiment was prepared by Ebtisam Al Anzoor and demonstrated by Mustafa Daif. The electricity is proven using an analog micro ameter. The positive is copper from a penny or copper coin while the negative is a galavanized nail. The potato releases a charge and is further proven when it is connected to a calculator. You can daisy chain the potatoes for a greater charge.
Before we realized that the world was round, there were lots of theories otherwise. One popular idea was that the world was flat, kind of like a box, and that you'd fall off if you walked to far to any one side.
You know that old pile of sweaters you've been looking at for ages? Well, do NOT take them to the dump! You can turn those sweaters into mittens with this simple, step-by-step video which proves that recycling is the way to go. You'll need some old sweaters, some scissors and a sewing machine.
TrueCrypt is a free open-source program for encrypting data and it's excellent for securing hard drives, but it also has the ability to hide a secret operating system inside another operating system. CNET shows you how this "insider secret" operating system is created. This operating system will be impossible to prove to people like the Feds.
If you've proven yourself beautifully adept at making snug and cozy granny squares (usually used as coasters), then why not add some spice to your crafting by adding different colors to the mix?
It's been proven that your body adjusts to any new workout you start doing within a week. Though that means less muscle aches and pain for you, it also means less results.
Whether you're a guy or gal, six pack abs are always preferable to a family pack, even if you think some squishiness in the tummy is cute.
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to perform a geometric proof of the Pythagorean theorem.
Cankers, if left untreated, can grow and prove lethal for your trees. In this installment of the Fruitwise Heritage Apple guide to apple pruning, Stephen Hayes demonstrates how to amputate a diseased tree branch with a saw. Watch and learn why, as Stephen puts it, "a seen canker is a gone canker."
7" USB monitors aren't useful for that much at first glance, but as this guy who had one laying around his house for years proves they do have their uses. This video will show you how to mount a USB monitor (7" in this case) in the side of your PC tower case and use it for monitoring CPU usage or other useful information.
Winged eyeliner is a makeup look that girls either love or don't attempt to try because it seems to hard. As habitual winged eyeliner wearers Lauren Conrad and Blake Lively prove, winged eyeliner is extremely sexy and also elongates and brightens your eyes.
In this tutorial, we learn how to remove stretch marks with lasers. The laser treatment is the most effective for removing stretch marks. This will turn the purple marks lighter, and once they are silver/white, they will make those less apparent. The Affirm laser treatment is proven to be extremely effective to remove the stretch marks, and make them only noticeable under a microscope. It will take several sessions to drastically remove the stretch marks, but it will be worth it in the end. D...
The French braid is a hairstyle staple for middle schooler girls and high schoolers, but it can just as easily be worn by older women without looking too cheer camp.
Take care of that acne without any expensive products that dry you out. This proven method only requires three ingredients: Oatmeal, honey and bioyogurt. This all natural remedy is all you need to have beautiful, clear skin again. This video will show you how make a natural homemade acne mask.
Don't give up turkey gravy just because you're cooking for a gluten-free diet. Use these tips when preparing this Thanksgiving favorite. Gluten-free diets are proven to help digestion and ease a variety of ailments. This gravy will make your gluten-free meal savory.
Add an old-fashioned touch to this year’s Christmas tree by decorating it with popcorn-and-cranberry garlands.
Interested in learning how to play the didgeridoo? If so, this video lesson may prove a good place to begin. This tutorial will walk you through the rudiments of didgeridoo playing, including tonal techniques for varying the pitch, volume and timbre of your didge. For more information, and to get started playing didgeridoo yourself, watch this helpful video tutorial.
This video teaches you how to pick a lock using only a tweezer from a swiss army knife and a safety pin. Only use this information for proving that you're cooler than your other friends.
Here, you'll see how to prove that the Well Ordering Principle is equivalent to the Principle of Mathematical Induction.
With the change to a glass back, many of us are concerned about the durability of OnePlus 6. While glass does offer some benefits such as lighter weight, without proper reinforcement, it can easily shatter in one drop. Now we have our our first look at its durability thanks to JerryRigEverything.
The microphone in a Windows computer is accessible to most applications running on the device at all times and completely without security limitations. Information gathered from recorded audio conversations taking place in the surrounding area of a compromised computer can be used for social engineering, blackmail, or any number of other reasons.
Making a good pie crust can seem intimidating to the uninitiated, but once you master this skill, a whole world opens up to you. Not only can you make all manner of fruit, custard, and cream-filled pies once you know all the tricks, you can branch out into the world of quiches, savory pies, and flaky, crispy turnovers, too. We've already told you how to get perfect, firm fruit pie fillings, so now, let's learn about crust.
This free video science lesson from Jefferson Lab demonstrates a simple technique for demonstrating the polarity of the water molecules. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
Ke$ha has become proved to us over the last year or so that there is room for more than one space-diva at the top of the music charts. Her looks are fast becoming iconic, and if you want to dress as her for Halloween you've come to the right place because this video will teach you exactly how to do it.
Military service records can teach you a lot about a person. If you want to see the service records of a friend or family member to prove their service or simply research your past, watch this video to learn how you can.
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to demonstrate that a diagonal line drawn from one corner of a rectangle to another will generate two equivalent triangles.
If you're having a hard time choosing the right mulch for your garden, then this video may prove useful to you. In the tutorial, you'll find out how to choose and use the best mulch for your garden.
If you've proven yourself beautifully adept at making snug and cozy granny squares (usually used as coasters), then why not add some spice to your crafting by adding different colors to the mix?
Making soap is a great activity and proves great results to give as gifts or to adorn your bathroom with. In this video from Soap Making Resources, learn how to make a tea tree oil soap that's gentle on your hands and smells great! Give the gift of handcrafted soap next holiday or birthday by using this video as your guide.
Hunting predators can be difficult. As their entire lives are based on being stealthy enough to make a kill, while expending minimal energy, finding your prey can prove to be quite time-consuming. One hunter has made a homemade predator decoy for less than $20. Watch the video to find out how.
While the PlayStation 3 is great at playing BluRay discs, if you want to play back downloaded videos, it can prove to be quite problematic. Use this software hack to unlock the Play Station 3 for video playback, whether it be from a hard drive or streamed off the internet.
Nothing on the internet is ever truly private and this hack proves it! Learn how to use PhotoFucket to hack into Photobucket with this video. You'll be able to access Photobucket without a password and view private photos from users. Be careful what you leak though...you might unwittingly create the next big reality TV star!
Dave Wilson Nurseries, Ed Laivo shares ideas for growing blueberries in containers. You will need 1/3 acid based potting soil plus 1/3 peat moss plus 1/3 medium sized bark. For the best results, containerize your blueberry plants. We show you the proven way to do it.
