What Is Ferrofluid? Ferrofluid is a black, solvent-based liquid, that, in the presence of a magnetic field, becomes strongly magnetized. The fluid is made up of nanomagnetic particles coated with an "anti-stick" or surfactant compound, suspended in a "carrier", commonly an organic solvent. For mechanical applications, it is used in hard drives and speakers as a lubricant. However, it also has been implemented in artwork, as seen in the video below.
The new Samsung Galaxy S4 may be the only phone to include temperature and humidity sensors, but your Galaxy Note 2 has a few weather-detecting features of its own.
This video describes how the cool technology of superconductors in magnetic levitation works
Homopolar motors tend to be typecast as simplistic in nature, and that's true for the most part. The bare minimum requirements are a battery, conductor, and magnetic field, but when it comes to Valentine's Day, they're nothing short of complex.
In a previous Nurd Rage video (here), Dr. Lithium showed you that pyrolytic graphite was diamagnetic, and that it could be stably levitated over magnets. It was repelled by a magnetic field, and this repulsion was strong enough to levitate it. In this science video tutorial, you'll learn how to levitate plain old pencil lead this time.
Learning American Sign Language is a great way to communicate with the hearing impaired, particularly if you have deaf friends and family. Learn how to sign words from around the home in sign language with tips from a deaf signing expert in this free sign language video series.
Learning American sign language is valuable for anyone who is deaf or has dead friends and family. Learn how to sign words for emotions in American sign language with tips from an audiology expert in this free sign language video series.
Learning American Sign Language is a great way to communicate with deaf people and the hearing impaired. Learn the signs for several foods with tips from a deaf signing expert in this free sign language video series.
Believe it or not, you can put your money to use very efficiently in a new way: your credit or debit card can serve as a blade in desperate situations. (It might even be handier than dental floss as a brilliant substitution for specialized kitchen tools.) While I wouldn't take bets on it slicing a New York strip steak, there are definitely many other foods it will easily slice through. What Is It Made Of?
First off—Happy Independence Day! Since it's the 4th of July, let's make this week's roundup short and sweet, so you can all get back to your holiday festivities.
To make a daisy chain beaded necklace you must get three different bead colors, two that are size eleven and one that is size four. The size eleven beads are for the stems and the outer part of the flower, while the size four beads are for the inside of the flowers. You will also need nylon thread and a clasp, such as a magnetic clasp. First slide the clasp on first and connect it to the thread. Next follow the following pattern for the beads, 8 for the stem (size 11), 6 for the outer petals ...
Would you like to know the basics of American Sign Language? Learn how to do sign language related to letters, number, greetings and essential expressions in this free education video series.
Would you like to know common sign language for discussing your favorite team or game? Learn how to do sign language related to sports and recreation in this free education video series.
Would you like to know common sign language for describing people's appearance, culture or other features? Learn how to do sign language related to people in this free education video series.
Would you like to know common sign language for talking about yourself? Learn how to do sign language related to your family and friends, job, hobbies and other personal information in this free education video series.
This video teaches us to make a photo black and white with coloured parts in Photoshop. This procedure consists of many steps. In the first step, we choose the magnetic lasso tool from the application. This is followed by the second step. In the second step, we draw the contours of the places we want to stay colored in the photo. Press the 'Shift' key to keep the contours selected while drawing contours across multiple places in the image. After drawing the contours, go to step three. Right c...
bghoo8313 describes how to swap an imac G3 hard drive. Unscrew knob on the hatch on the back of the computer unit. Remove the RAM and the card. Take out 4 screws, 2 on the top and the other 2 under the guard. Pry it open with a screwdriver. Take out the outer screws under the guard. Open the unit from the "Apple" logo on the back. You will hear snaps, but the unit is not damaged. There are 6 radiation screws, take them out. Use a magnetic head screwdriver to avoid dropping screws. There are 4...
This tutorial explains how to create a multi colored eye effect. First open the image in Photoshop and unlock the layer. Make a selection of the eye with either the lasso, magnetic lasso or pen tool. If you are using the pen tool, like in the tutorial, right click and choose mark selection, feather radius of three pixels. Now copy and paste the eye. Go to File and select New. Create an image of 1000 by 1000 pixels. Unlock the layer and make sure tea background and foreground colors are black ...
Is your hobby remote controlled vehicles, specifically RC airplanes? Well, check out this video tutorial series to see how to assemble the Micro Scout R/C model aircraft from Plantraco. Yes, These planes are small - with a wingspan of only twelve inches, but believe that...
When it comes to augmented reality smartglasses, for now, it's still a mostly enterprise world, since the form and function of most are more acceptable on a job site versus your local cafe, and the still high price tags are far more palatable to major companies rather than individuals.
As far as wallets go, mine is as full as they come; think something like George Castanza's overstuffed wallet on Seinfeld. I've got receipts, pictures, and tickets jammed inside, but what takes up the bulk of the space are all of the cards—credit, debit, gift, rewards, customer loyalty... I've got pretty much any card you can think of squeezed in. While it is a strain on my rear end, there's nothing I can do besides keep some of the cards elsewhere. However, looking for them when I need them ...
There comes a time in relationships when two people decide to move in together, and when this happens, you learn two things:
Everyone has a junk drawer in their kitchen. It's like an unspoken rule. The junk drawer is full of all the strange bits of what not that accumulates in your home over time. Everything in there is useful, and you never want to throw any of it away for fear that you might need something in there one rainy day.
The guitar is a double-edged sword. I've played all my life, and though I love the act of guitar playing, there are quite a few people I could live with never hearing play again—ever.
You don't have to be fluent in American Sign Language to teach your baby to communicate through signs. Learn a few common signs and simple ways to remember and adjust them.
Practice reading finger spelling in American sign language.
American Sign Language (ASL) for toddlers, teach them how to sign "grow". Teach your child how to sign.
Teach your toddler how to sign "dog" in American Sign Language (ASL). Learning is fun with Signing Time.
Learn how to sign "cat" using American Sign Language(ASL). Teach your children how to communicate with sign language.
Signing Time teaches toddlers how to sign "water" using ASL. A great introduction to sign language for children.
Learn how to sign "eat" from Signing Time. Teach your toddlers and children how to use sign language.
One of the fun and special traditions enjoyed and shared by the Deaf Community is signing stories using number or alphabet hand shapes. In these stories, various hand shapes do not stand for the numbers and letters themselves, but are used as signs or gestures to convey concepts. They are signed in alphabetical or numerical order, and used in amazing ways to sign or act out a story.
One of the fun and special traditions enjoyed and shared by the deaf community is signing stories using number or alphabet hand shapes. In these stories, various hand shapes do not stand for the numbers and letters themselves, but are used as signs or gestures to convey concepts. They are signed in alphabetical or numerical order, and used in amazing ways to sign or act out a story.
Learn to use sign language numbers 1-20 in British Sign Language. This video has a good speed for following along.
Learn numbers 0-20 and the alphabet in British sign language.
A great way for your child to learn sign language. American Sign Language(ASL) is easy with Signing Time.
Samy Kamkar, security researcher and friend of WonderHowTo, just had one of his devices featured in Mr. Robot.
Lenovo announced at Tech World '16 a slew of new products, and one of them aims to upend the smartphone accessory ecosystem: Moto Mods. Moto Mods are proprietary modular add-ons developed for two new Motorola phones that were also announced in the keynote, the Moto Z and Moto Z Force. Sixteen magnetic nodes align the bottom back of the phones that connect and hold accessories, forming a case appearance. The nodes transfer both data and power at high speeds, a fact that Lenovo hammered home wi...
Personally, I know life would be a lot easier if the people in it could just read my mind. Since that technology is currently unavailable, it's comforting to know that your air conditioner can be your personal telepathist with Sensibo.
Michael Faraday was awesome. He discovered electromagnetic induction, diamagnetism and electrolysis, and he invented the Bunsen burner (before it was the Bunsen burner). Because of his work, we can make suits that can withstand 1,000,000 volts of electricity and cases to protect our gadgets from nuclear attacks.
