Negative Search Results

How To: High Voltage Happiness? How to Make a Negative Ion Generator

In this article, I'll show you how to build a simplistic circuit to generate negative ions. Negative ions have been known to contribute to fresher air, happier mood, and general health benefits. However, they also look amazing in the dark (check out the photos below, purple plasma is amazing!). And if all else fails, they make a cool nightlight. If you've ever been around a Tesla coil, cathode ray tube TV or sometimes even on a trampoline, you've probably noticed that smell; the smell of "sta...

News: No Negative Ads Pledge

Here are Jerry Brown, Meg Whitman and Arnold Schwarzenegger at the Women's Conference a couple weeks ago. The host of the "Today" show, Matt Lauer, asked both gubernatorial candidates if they were willing to get rid of their negative ads and make positive ones instead. Brown said yes but Meg Whitman said no and gets booed by the women in the audience.

News: Hulu Plus a Negative on Xbox Live?

If you powered up the ol' Xbox 360 last night to watch Netflix, you probably noticed that a new streaming service moved into Xbox LIVE—Hulu Plus. Netflix finally has some competition. Or maybe not. But with a week of free service, they're sure to attract some would-be watchers.

News: Are You Noob-Positive or Noob-Negative?

noob - Short for "newbie." Someone with little to no experience or skill. In some gaming communities, there is fierce debate over the distinction between "noob" and "newb"—one being derogatory while the other simply indicates being a novice. While some may argue the semantic differences, "noob" is the most common spelling seen around the internet, for both purposes.

How To: Perform negative resistance training

In this tutorial, we learn how to perform negative resistance training with Jennifer DiDonato. Start of sitting down with your elbow resting on your knee and holding a weight of your preference. Now, lift the weight up by counting 1,2,3. Bring the weight back down by counting to 6, and keep doing this back and forth. This will give you a different work out since you are doing resistance on your way down as well as going up. Do three sets of this exercise on both sides, then try to do one more...

How To: Multiply fractions

Doug Simms gives a demonstration of multiplying fraction in a simple and easy manner. The simplest problems have proper fractions to be multiplied by proper fractions, and the answer can be arrived at by simply multiplying the numerator (upper value) of one fraction with the numerator of the other, carrying out the same operation with the denominators (lower values) of the two fractions, and finally, reducing the resultant fraction by a common factor, if any. Doug also gives three other examp...

How To: Build a mini fume extractor

Materials needed: Altoid mint tin, 9 volt batter and connector, switch, 7812 voltage regulator, 12 volt computer fan, carbon filter and 2 pieces of screen. Wire the battery connectors. Solder all of the following: Negative connector to the switch, wire to the switch, ground wire of the voltage regulator to the middle wire, output for the 7812 to the fan, positive lead on the 9 volt connector to the input on the 7812 and the negative from the 7812 to the negative on the fan. Test. Put all the ...

How To: Use the SUMPRODUCT function in Microsoft Excel

Are you looking for a way to make your Microsoft Excel formulas more efficient? If so, you're in the right place. With this free video lesson from everyone's favorite digital spreadsheet guru, YouTube's ExcelsFun, the very first installment in his "Excel Formula Efficiency" series, you'll learn about the basics of Excel's SUMPRODUCT function — why some people use double negative and why other use times one.

How To: Divide integers quickly and easily

This tutorial explains how you can divide integers. Dividing integers is similar to multiplying integers. A positive divided by a positive gives you a negative number. A negative divided by a negative gives you a positive number. And a positive divided by a negative, or a negative divided by a positive, will results in a number. Some examples: -15 divided by 3. In this problem we're dealing with a negative divided by a positive. So, the answer will be negative. The answer is -5. Another examp...

How To: Make a survival fire from a battery and staple

Check out this how-to video to start a fire using an AA battery and a staple. You can do this while listening to the classical guitar piece, "Malaguena" if you feel like it. It could save your life! With your battery: start by cutting the plastic away from the negative terminal. Watch the video survival training tutorial for more tips on starting an emergency fire!

How To: Understand polyatomic chemical formulas

This is a video tutorial in the Education category where you are going to learn how to understand polyatomic chemical formulas. When writing the formula using polyatomics, the same cross-over rule applies. 1st identify the metal and non-metal. Then you write the symbols, write the charges, cross-over the charges from top to bottom, remove the charge and simplify the numbers and remove the 1s. for example, iron (II) phospahate. The "ate" ending implies that phosphate is polyatomic. The symbol ...

How To: Gift Wrap Using Recycled Materials with Threadbanger

In this video tutorial, viewers learn how to gift wrap using recycled material. The materials need for this project are: a potato, large paper bag, tape, ribbon and paint. Begin by cutting the potato in half and draw a simple shape onto the sliced surface of the potato. Then cut out the negative part of the shape with a knife. Now open the bottom of the paper bag and cut down the side so that it lays flat. Then brush some paint onto the potato stamp and press it down along the paper to form a...

How To: Turn a pencil into an emergency light

You are stuck in the middle of nowhere and can't see a thing. Luckily you have pencil and your car battery. You can create 20 minutes of bright light using the graphite from a regular pencil, wired to the positive and negative of your car battery. Basically, the graphite serves as a bright filament for your emergency light. Follow along with this how-to video tutorial to learn the step by step process of turning a pencil into an emergency light.

How To: Create an optical illusion with any color photo

This will show you how to take negative afterimages to another level. By introducing a negative color photo and then immediately incorporating a black and white version of the same photo, you will perceive the black and white photo in full color (the way the color photo was meant to look). This can be done with any color photo, along with any photo editing program, like Adobe Photoshop.

How To: Turn pennies into silver and gold coins with zinc

One of the most famous and repeated chemistry experiments involves money. Some would say this is more of a trick than an experiment, but you can be the judge of that. No one can just turn pennies into silver or gold coins, but someone with a few chemicals can. So, if you want to cooler cents in your pocket, try out this chemistry trick yourself. Nurd Rage (Dr. Lithium) shows you how to turn pennies into silver and gold coins using zinc.

How To: Use "It's + adjective + infinitive" in English

In this video, we learn how to use "It's + adjective + infinitive" in English. To form these sentences, you will use the pattern that is stated above. This is very common in the English language, and you can put whatever you want into the sentence as the infinitive. You can change this from "it's hard to do" to It's not hard to do" to "it's easy to do". You can also make something negative, by giving it the prefix "im", which would change "possible" to "impossible". You can also ad in "un" to...