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How To: Calculate the age of the universe w/ Hubble's constant

This is a great instructional video on how to calculate the age of Universe from Hubble's constant. The speed the galaxy moves away from us is directly proportional to the distance from us. Now think of big bang theory. Hubble's constant is equal to velocity over distance. 1 over Hubble's constant is equal to distance over velocity that is equal to time. Time equals to 1over 71. If you change it into all the same units words it is one over 71000 or 3.09x 10 to the power of 22. It is 3.09x10 t...

How To: Create an array constant from cell values in MS Excel

Looking for a primer on how to create and work with array formulas in Microsoft Office Excel? You've come to the right place. In this free video tutorial from everyone's favorite MS Excel guru, YouTube's ExcelIsFun, the 10th installment in his series of Excel array formula series, you'll learn how to create an array constant from values in cells. This is a great trick that can save tons of time when you want your array stored in memory.

How To: Make a simple constant current source

In this clip, you will learn how to create a simple constant current source so that all of your appliances are always running on the same current. This clip will explain exactly what this means and why you need to use it as well as how to set it up. Using the LM317LZ 100ma adjustible voltage regulator and one resistor, you can make a constant current source. With the LM317 1.5 amp version, you can make one with higher currents.

How To: Chart assumed constant growth rate changes in Microsoft Excel

As you might guess, one of the domains in which Microsoft Excel really excels is finance math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 64th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to chart assumed constant growth rate changes in Excel.

How To: Do the Rebound soccer drill with Nike Bootcamp

Bounce back to full fitness in time for the new season with "Rebound", the latest Bootcamp drill of the week. This one's all about control. Twist and turn with the ball glued to your toe, then knock an inch-perfect pass and accelerate as you receive it back. Constant movement and constant control - two ingredients for next season's complete footballer. Nike bootcamp brings you this pro soccer drill training video. Brush up on your soccer skills and learn how to do the Rebound soccer drill.

How To: Make it through Vault 34 alive in Fallout: New Vegas

In Fallout New Vegas, if you've done the "Come Fly With Me" quest, or if you've done any adventuring out into the north eastern part of the Wasteland you may have come across Vault 34 on your way to the strip. Vault 34 is infested with Ghouls, the former residents of the vault, turned into hideous creatures from the intense radiation. But this isn't your only worry, there's also a constant ticking of radiation during your stay, so unless you're packing Rad-X and RadAway, your trip won't end w...

How To: Build a wooden house with a concrete wall that is safe from hurricanes

Hurricanes are a constant threat to many Americans, and many homes are not constructed properly to be safe from hurricanes. In other countries with less money, these problems are even worse. This video from the International French Red Cross will show you how you can construct a cheap, effective shelter against hurricanes out of concrete and wood. If your home is unsafe and you don't want to retrofit, you might want to consider one of these.

How To: Get better battery life on DROID smartphones

Battery life is a constant problem with cell phones today, and the Droid smartphones running Android software are no exception. If you want to learn how to get the most out of your Droid battery, then check out this helpful video that provides 8 tips on cutting battery-eating apps and features. If you want more battery life and are willing to sacrifice the cool features of the Droid cell phones, then you have to do these things. Don't let you Droid battery get drained!

How To: Insulate garage doors with foam board insulation for a warmer winter

When it comes to winter weather, the garage should not be neglected, especially if you have a room directly above it. Neglecting to properly insulate and seal your garage doors will create a constant rush of cold air inside, making the garage really cold, in turn making the floor upstairs really cold. This will drive up your gas or electric bill in no time during the winter months. But you can fight higher heating costs with some DIY ingenuity, and Dave Mars will show you how!

How To: Delete games from your Facebook profile

OK, you're fed up with Farville, you're mad at Mafia Wars and you're done with Facebook gaming in general. Now, you want to remove them from you system once and for all. This video will tell you what you need to do to delete the games and remove them from your profile. Follow the directions which are clearly laid out to take those games off your system and feel like you can breath free again without the constant pestering that Facebook is famous for.

How To: Count with OR criteria in Microsoft Excel 2010

New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 674th installment in their series of digital spreadsheet magic tricks, you'll learn four different methods for counting OR criteria in Microsoft Excel 2010:

How To: Bathe your cat

This video demonstrates how to bathe a cat. It's a cat's worst nightmare. To make it easier, first be sure the water temperature is warm and constant. Put the cat in the tub and get him wet with the sprayers warm water. Protect the cats eyes at all time. Apply cat shampoo liberally and rub it in good. Then apply conditioner to the cats' fur to help detangle and conditon it. Rinse really well with warm, steady stream of water. Then use a warmed up towel to wrap around the cat. This will help d...

How To: Get rid of a runny nose without medicines

The University of Michigan teaches you how to use nasal irrigation to get rid of common nasal sinus symptoms without reaching for those over the counter medications. The best part of nasal irrigation is that it handles conditions that medication cannot - such as post nasal drip and the common "stuffy nose". This can work for most allergies, even if you are already on medication. Water used for nasal irrigation should be luke warm and should contain about a quarter teaspoon of salt into an 8 o...

How To: Use micro-misters for drip irrigation systems

Micro misters allow for low volume of water over a wide area. They give good moisture coverage. Systems can be pulled up, changed and made into what you need it to be. Keep potted plants separate from other plants. They should have their own system. There is a system to encourage growth of root systems of various plants. Shrubs get two emitters in case one clogs up, the plant still has moisture. Having the water at the base of the plant limits weed growth. There is a temporary system to get t...

How To: Shoot a stop-motion animated film

This video will show you how to make a stop motion film using an editing program called Windows Movie Maker. Find a place to film your stop motion movie. Preferably a well lit area where the light source is constant. Set your camera on a tripod and position at the angle you prefer. Place the object you want to use in your film outside of the camera's view, and take a picture. Move your object slightly into the camera's view and take another picture. Repeat this many times, until your object i...

How To: Add an infrared effect to photos in Photoshop

This video tutorial is about adding an infrared effect to an image using Photoshop. First of all, open the image to which you wish to add the effect. After that, create a duplicate layer. Then go to the image option and click on it. A drop down menu appears. From that menu, click on adjustments and from that, select the option channel mixer. In the small window that appears, first tick the monochrome option. The idea of the channel mixer is that the total percentage of the colors must add up ...

How To: Tether the iPhone into a wireless router

One of the coolest feature of the 3G iPhone is the high speed, always on, Internet connection. Having a constant connection to the Internet is pretty much a must have for any dot com mogul. The main problem with the iPhone is the screen is too small to do any serious Web surfing. Yes, it’s great for Twitter or checking up on emails but blogging from it is an exercise in frustration. Fortunately, there is a way to extend that 3G connection onto your laptop by turning your iPhone into a wireles...

How To: Draw the beautiful Megan Fox with pencils

Megan Fox. She's one of those girls you love and hate, because she's just so damn hot! You may not like her acting skills, but her beauty makes up for it all. But the closest you're ever going to get to Megan Fox is with this drawing tutorial. Merrill Kazanjian shows you how to draw Megan Fox, step-by-step, with pencil. It doesn't matter what your experience level is at drawing. All you have to do is follow the step-by-step instructions in this video. If you give it a try, you might transform...

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