Read This Useful Study Search Results

How To: Chemiluminescence, oxidation of luminol

In this how to video, you will learn about Chemiluminescence and the oxidation of Luminol. The first solution is Luminol and NaOH. The second is K3 and H202. Luminol is used to detect blood in crime scenes. It reacts with Iron in Hemoglobin. As you can see in the example, it illuminates the chemicals in the dark. This is why it is very useful for crime scenes. It can be used even if the blood is not visible with day light. Thus, it is an invaluable chemical in the name of science and justice....

How To: Sink nails, fill in holes & sand with Lowe's

This video describes how to improve one's skill when performing home based projects with wood which is a useful skill if one wants to build a table, chair or even a box. In this video one will learn how to sink a nail, cover the hole and leave a sanded finish. For example it is important to drive all nails 1/8 an inch into the surface of the wood so the filler can cover the hole properly and avoid leaving sharp edges or uneven surfaces. Overall this video is simple, easy to follow and useful ...

How To: Hack a VHS Camcorder into a Night-Vision Headset

Watch as Kipkay hacks a bulky VHS camcorder and turns it into a night vision headset. This video tutorial will show you that old technology can still be useful in today's world. Just think, you might not have ever been able to see in the dark corners of the night without this hacked VHS camcorder. Night vision isn't just for the military, it's for you, and me, and your dog...

How To: Make a time lapse video using Adobe Premiere Pro

Time lapse videos can be used to distort a sense of time around your subject, which makes them very useful special effects in documentaries. By using time lapse, you can show the transition from sunrise to sunset in just a few seconds, or slow down a drop of water hitting a table. The tools in Adobe Premiere can be used to create this effect, and the following tutorial shows you how to take your raw footage and turn it into a time lapse shot.

How To: Use an angle grinder safely in home construction projects

Angle grinders are very powerful and useful tools, but like many such power tools they are extremely dangerous if you don't know how to use them. This video goes over a variety of must-know safety precautions that you should take before using an angle grinder to grind for your own construction projects. It covers proper eyewear, fire protection, and setting up the device for use.

How To: Use the TODAY and NOW functions in Microsoft Excel 2007

Need an introduction to Excel's useful TODAY & NOW time functions? You're in luck as this clip provides just that. Whether you're new to Microsoft's popular digital spreadsheet application or a seasoned business professional just looking to better acquaint yourself with the Excel 2007 workflow, you're sure to be well served by this video tutorial. For more information, including step-by-step instructions, take a look.

How To: Use the Quick Properties tool in AutoCAD 2011

Learn how to use the ever-useful Quick Properties tool in AutoCad 2011. This clip will teach you everything you'll need to know. Whether you're new to Autodesk's popular 3D drafting application or a seasoned professional just looking to better acquaint yourself with the newest iteration of the program, you're sure to be well served by this video tutorial. For more information, including step-by-step instructions, watch this free video guide.

How To: Create an X-Ray vision effect in After Effects

X-Ray vision is one of the most memorable of Superman's many distinctive powers (he was so unfairly strong wasn't he?) and one that would be very useful to modern spies and voyeurs. This video will show you how to create an X-Ray vision special effect for your movie using After Effects. Whether your characters are looking into a girls' locker room or a secret Soviet meeting, the effect at least will be very cool.

How To: Add today's date & time via keyboard shortcut in Excel

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 618th installment in their series of digital spreadsheet magic tricks, you'll learn about a handy key command that will allow you to enter both today's time and date into a single Excel cell.

How To: Hack Google Search to find things more quickly

Though the Google home page may appear simple, its search tool is anything but. This quick clip from the folks at CNET TV demonstrates a number of the search engine's most obscure and most useful features, all certain to help you to find your desired information more quickly. For specifics, and to get started using these great search hacks yourself, give this guide a look.

How To: Tie a twisted dropper loop fisherman's knot

Know your knots! Learn how to tie a twisted dropper loop knot with this free video tutorial. The twisted dropper loop is great for fishing line and requires about 10 twists to get the right feel. For an easy-to-follow, step-by-step overview of how to tie this useful fisherman's knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Tie a two half-hitch knot with a round turn

Know your knots! With this free video tutorial, you'll learn how to tie a round-turn two half-hitch knot. The two half-hitch knot with a round turn is a great hitch knot that has a sliding quality to it that still won't release. For an easy-to-follow, step-by-step overview of how to tie this useful fisherman's knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Tie a release hitch knot for mountain climbing

Learn how to tie a release-hitch knot! The release hitch knot was developed to overcome the shortcomings of the Prusik knot, making it perfect for rock and mountain climbers. For an easy-to-follow, step-by-step overview of how to tie this useful climber's knot in a minute's time or less, watch this free video knot tyer's guide.

How To: Count characters & numbers within a string in MS Excel

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 288th installment in their series of digital spreadsheet magic tricks, you'll learn how to count the number of characters or numbers in a text string with a formula that is case sensitive.

How To: Reverse first & last names by formula in MS Excel

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 292nd installment in their series of digital spreadsheet magic tricks, you'll learn how to extract first and last names from an Excel spreadsheet and rearrange them using a formula.

How To: Make a shrinking data validation list in MS Excel

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 241st installment in their series of digital spreadsheet magic tricks, you'll learn how to create a data validation drop-down cell list where the list shrinks as you select values.

How To: Use an Excel macro with relative & absolute references

New to 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 Excel tutorial from ExcelIsFun, the 264th installment in their series of digital spreadsheet magic tricks, you'll learn how to use a recorded macro to take a data set and add a new column, concatenate data from 3 columns, and delete unwanted columns.