Hands on Scientific Search Results

How To: Convert scientific notation to standard algebra form

Learn how to convert from scientific notation to standard form by watching the above math video. To change a number from scientific notation to standard form, move the decimal point to the left (if the exponent of ten is a negative number), or to the right (if the exponent is positive). You should move the point as many times as the exponent indicates. Do not write the power of ten anymore.

How to Act Like a Food Snob: Molecular Gastronomy Edition

I first heard the term molecular gastronomy while watching an episode of Bravo's Top Chef a few seasons back. Intrigued by the concept, I sought to find out more about this modern, deconstructed type of cookery. If you happen to be around foodies and the topic of molecular gastronomy comes up (which very likely will at some point) you'll want to have a few points to contribute and maybe even give them a run for their money.

How To: Vent a fish

Scientific studies have shown that species with large swimbladders, especially bottom dwelling fish such as grouper and snapper, derive an immediate benefit from venting.

News: 4 Years of Spectacularly Pointless Marble Machines

So very pointless, yet unquestionably spectacular. The best kind of "art" performs no other function than to delight the viewer, and Japanese YouTube user Denha's complex marble machines do just that. But are marble machines art? You can call them that—or toys, scientific contraptions, engineering feats—but however you choose to label them, the best marble machines are complicated, skillfully crafted, and driven by the principles of potential energy, kinetic energy and gravity.

News: Apple Engineer Builds Fully-Functional Ancient Computer With LEGOs

Apple software engineer Andrew Carol built a fully-functional replica of the Antikythera Mechanism, the world's oldest known scientific computer. The 2000-year-old analog device was used by the ancient Greeks to predict the year, date, and time of future solar and lunar eclipses accurately to within two hours. Carol put together the 110 gears (made with 1,500 LEGO Technic parts) in just 30 days. See how it works below. For more information, check out Fast Company's interview with Carol.

How To: Use text field form validation in Dreamweaver CS4

Here the New Boston shows you some tips about using the Spry Validation Text Field. To begin you will go to the Spry Validation Text Field, on Dreamweaver CS4. Looking at the bottom of the page notice the various options that are available for Properties. You find drop-down boxes for Type, Pattern, Minimum or Maximum values, Required, Enforce pattern, Format, Validate on, Blur or Change and Preview States. You can see the types of text available for validating by left mouse clicking the Type ...

How To: Properly wash your hands with sanitizer or soap

Hand washing is something you learn from a young age, but how do you know you are doing it correctly? Keeping your hands clean is one of the best things you can do to keep others and yourself healthy. In this tutorial, Memorial Health will teach you the best way to wash your hands and prevent the spread of germs. There are two ways to clean germs from your hands: soap and water and alcohol-based handrubs. Watch this video to find out how to use both effectively. The video will show you how a ...

How To: Do hand technique drills to improve swim stroke skills

Sometimes the best paddles for swim training are the ones at the end of your arms: your hands. By manipulating the shape of your hands, as demonstrated in this how-to video, you can learn all kinds of things about your stroke. Far too many swimmers don't even think about how they use their hands. Learn how to improve stroke and use your muscles better by using different hand drills by watching this video swimming tutorial.