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How To: Change the differential fluid in an Infiniti G35

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 has its problems just like any other brand of vehicle. There's maintenance, minor repairs, major repairs, needed replacement parts, oil changes, headlight adjustment, low tires, transmission and everything else you can t...

How To: Use optical refractors to test vision with plus lenses

If you are an optometry or opthalmology student, this is the perfect how-to video for you. Watch these these seven videos and learn how to test a patients vision with a refracting machine using plus lenses. It’s a little difficult to describe the controls used for refracting because every instrument is set up differently. If possible, refer to a manual for the specific refracting instrument that you’ll be using. This vision tutorial will walk you through all the parts of a optical refracting ...

How To: Use an optical refractor to test vision

If you are an optometry or opthalmology student, this is the perfect how-to video for you. Watch these these seven videos and learn how to test a patients vision with a refracting machine. It’s a little difficult to describe the controls used for refracting because every instrument is set up differently. If possible, refer to a manual for the specific refracting instrument that you’ll be using. This vision tutorial will walk you through all the parts of a optical refracting instrument, sphere...

How To: Make a honey and olive oil shiny hair mask

Dry and damaged hair can get a boost from a nourishing hair mask. If you want to make a hair mask out of natural ingredients. Make the mask when the hair is wet. Mix half a cup of honey with a quarter cup of olive oil. Apply the mixture to your hair with a wide brush. Try to apply it as evenly as possible over all your hair. When you finish applying, gently comb your hair and gather it up. To make sure the mask is well absorbed, leave it on for about half an hour. Afterwards, shampoo the hair...

How To: Make a Banana Marble Drop cocktail

Baron Brunton and VideoJug demonstrate how to make a Banana Marble Drop cocktail. A simple, sweet cocktail, perfect to enjoy on a hot summer's day. This is a shaken cocktail. It is shaken to blend the ingredients together and then strain it into the glass to serve.

How To: Knit a Snowflake

For the holiday season, a great knitting project is a snowflake design. It's perfect for handmade Christmas gifts. You can knit just one, or a row of them, or use them as full pattern on a sweater or blanket—or whatever project you choose.

News: Sun Picture from My New Solar Telescope

There is going to be an annular solar eclipse on May 20th that will be visible in a narrow pathway that covers part of Eastern Asia and the Western United States. The eclipse will be seen as a partial eclipse over a much greater region of the World. I live in Redding, California, which luckily happens to be right in the center of the path, giving a perfect ring of fire effect during the peak of the eclipse.

How To: The Best Way to Peel a Hard-Boiled Egg

So, you want to decrease your hard-boiled egg peeling time because you don't want the time- consuming task to cut into your limited lunch break. Or maybe you've somehow been burdened with the task of cooking a lot of homemade deviled eggs for a big family gathering. How do you peel a hard-boiled egg as quickly and efficiently as possible?

How To: Decode Body Language

Your boss is pursing her lips and drumming her fingers on the table during your presentation. Your best friend is gazing downwards and crossing his arms when you ask him why the car you lent him for the weekend has a big dent. What could these body language signals all mean?

Arduino Air Force: DIY Robotic Cardboard Quadcopters

You're hellbent on taking over the world, but one race of robotic minions isn't enough for you. With your hexapod robots acting as your ground forces, it's only natural to take to the skies. These cardboard quadcopters are the perfect air force for you. Combined, you are mere steps away from starting your evil takeover. Now you just need some water bots. The cardboard flying quadcopters are built around the MultiWii platform with the twin power of Processing and Arduino, so they are actually ...

News: Easy Cherry Cobbler How-To

Being from the south I am partial to cobbler, especially peach cobbler. However I had some cherries on hand that needed to be used before they went bad so decided to give this a try. The end result was a sweet decadent dessert with just the right amount of tartness. Was great served warm with vanilla ice cream but just as good the next day cold.

How To: Make a BB Machine Gun from a Soda Bottle

In a previous article, I showed how to make a powerful airsoft BB machine gun with a portable air supply using about $50 worth of PVC and air fittings. For this project, I have simplified the design to make a machine gun out of only 4 parts totaling about $15 that runs directly off of an air compressor.

SUBMIT: Self Portrait Cell Phone Photo by January 16th. WIN: Portable USB Power Supply

What do you do when you've been wanting to take some awesome photos with your cell phone but can't seem to find a captivating subject? Well, whether or not you realize it, no matter where you go, you will always have a reliable subject to photograph—you! For this week's Phone Snap Challenge, we want you to show us your taste and personality by sending in your most creative and expressive self-portrait!

News: Mathematical Quilting

I got hooked on origami sometime after Math Craft admin Cory Poole posted instructions for creating modular origami, but I had to take a break to finish a quilt I've been working on for a while now. It's my first quilt, and very simple in its construction (straight up squares, that's about it), but it got me thinking about the simple geometry and how far you could take the design to reflect complex geometries. Below are a few cool examples I found online.

How To: Make a Self-Watering Greenhouse

I've been hell-bent on complete self sufficiency for a long time now. There was a point where I was living in a self-sustaining community in the mountains in Colorado, and we had a very large greenhouse there. Dragging the hose around to water plants was a real pain, and that stuck in the back of my mind even after I left the place. It would have been much easier to integrate watering into the frame at construction time than doing that hose dance every day.

News: Danny MacAskill Continues to Amaze in "Industrial Revolutions"

The newest addition to the talented Danny MacAskill's impressive portfolio of stunt videos showcases the cyclist maneuvering through a closed iron works factory. Shot by filmmaker Stu Thomson, the video features MacAskill riding through empty buildings and rusty railroads, as he jumps, flips, and turns new tricks—from simple stunts like jumping from one railroad track to the other, to more complicated feats like riding a rope. What does it take to film an athlete like Danny MacAskill? It's a ...

News: Polish Artist Recycles 300 Dead Computers into Giant Installation

Electronic waste (or e-waste) is becoming a bigger and bigger problem thanks to the rapid growth of technology. In 2009, the United States produced 3.19 million tons of e-waste in the form of cell phones and computers. It's estimated that 2.59 million tons went into landfills and incinerators with only 600,000 tons actually being recycled or exported. Recycling programs just aren't cutting it, so what's the next best thing? Art.

News: Mind the Epic Gap!

"Mind Your Step" is a gargantuan street illusion staged in Stockholm's most public square, Sergels torg. Created by artist Erik Johansson, the illusion will be up until June 12th, so swing by if you happen to be in Sweden. Erik has documented his entire creative process here, including this great little tutorial on how to create your own optical illusion.

News: Mechanical Sculpture Spits Out 441 Perfectly Sphered Water Droplets

Beauty is a fine line between art and science for Pe Lang, a Swiss sculptor living and working in both Berlin and Zurich. The autodidact artist specializes in graceful, hand-built kinetic sculptures made of magnetic, electrical and mechanical devices, all of which are elegant and completely mesmerizing. "Positioning Systems - Falling Objects" is one of his newest contraptions, which feels like a mix of home waterfall fountains, mechanical metronomes and a busy manufacturing plant.

How To: Make Your Own Roman Sahdes

Making Your Own Roman Shades Are you an everyday Martha Stuart? You know, one of those do it yourself creative people who can make better household items than you can find at the store. It so, I found a great (quick to the point) video that will help you design and make your very own set of Roman Shades.

News: ShakeCall App Lets You Answer and End Calls Agitatedly

Android users aren't required to answer and end phone calls by pushing buttons, thanks to ShakeCall by YSRSoft. It's a free application available in the Android Market, which links the answer and end functions to the motion of your smartphone. If someone calls you, shake to talk to them, or leave it alone to ignore. To end your conversion, shake again.

Jan Kounen: Undisputed Master of Psycho Stop Motion Animation

As inspiration for the Levitation Challenge, a demonstration of pure stop motion genius: Jan Kounen's Gisele Kerozene, the tale of four extremely odd witches "flying" on motorized brooms. If Tokyo's Levitating Girl has to jump 200 times to get the perfect shot, imagine how many times these four guys had to jump to get a full 4 minutes and 30 seconds of stop motion magic.

News: DIY Mojito Alchemy

It's just what the doctor ordered: the perfect hangover cure. A time-proven, age old trick, commonly referred to as the "Hair of the Dog", asserts that downing more alcohol the morning after is scientifically proven to ease a painful hangover—well, for the short term, at least (read more here).