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How To: Calculate weight average atomic mass of an element

In Chemistry weight of some elements are measure in the form of Average Atomic Mass. Isotopes are found in different abundances in nature. Certain elements have many isotopes and certain elements have few isotopes. Regardless of the number of the natural isotopes, the weighted average mass takes into consideration not only the mass of each isotope, but what also its natural abundance in terms of percent as found in the nature. So when you have the mass of two isotopes of an element and are gi...

How To: Create augmented reality apps

In this video, viewers learn how to create augmented reality applications, using Papervision 3D version 2.0. Augmented reality is a term for a live direct or indirect view of a physical real-world environment whose elements are merged with virtual computer-generated imagery - creating a mixed reality. To create augmented reality applications, users require the following programs and software: Adobe Flex Builder 3, TortoiseSVN and FLARToolkit. This video tutorial is not recommended for beginne...

How To: Composite video for inserting backgrounds in sets

The Video On Demand highlights how amazing backgrounds are inserted behind characters and will show you how to composite video so your characters can seamlessly move in front of these images. Computer generated video objects may be superimposed over a background video image so as to create the illusion of a single composite scene. The leading edge of an object is detected and for a period of time the object and background video signals are mixed. After that period, only the object video is tr...

How To: Re-cover a lampshade

Updating an old lampshade is a great way to brighten up a corner, freshen up a room, and lighten up your life. Learn how to re-cover your lampshade with this tutorial. All you need is fabric, spray adhesive, fabric glue, ribbon or cording to easily cover your lampshade at home.

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).

How To: Origami a Japanese shallow, short paper garbage bin

These instructional animated slides teach you how to easily fold a shallow paper garbage bin. Learn how to use the Japanese art of origami to make your own garbage bin. Use the start, stop, forward and back buttons to easily follow along. You can also speed up the instructional origami video if it is going too slow. Very cool Japanese origami how-to video! Origami a Japanese shallow, short paper garbage bin.

How To: The Genius Way to Track Down the TikTok Song Stuck in Your Head

Songs new and old are given a fresh purpose through the TikTok meme machine, but it can be tricky to figure out where a track originally comes from. Sure, you can tap the name of the song to see the source on TikTok, but if it were a snippet uploaded by someone other than the track's creator, the song title likely wouldn't be listed. Luckily, there is an easy way to figure it out.