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Hobbies & Science : Society & Culture & Entertainment
Distance From Trees for Pond Construction
Trees growing around a pond certainly create a scenic view, but if certain species are planted too close, their growth can create unwanted results. Foliage and sticks create litter that fall into the water and decompose, adding to a pond's organic load and creating unhealthy conditions for fish and
Wetland Plants of Arizona
Because Arizona is a desert state, wetland plants are not usually associated with it; there are, however, a number of plant types from grasses to trees that thrive in the wetland areas of the state.
How to Construct a Pentagon Using a Compass
Geometric constructions are methods of drawing a particular shape or geometric primitive beginning with the shape's definition and using only a compass and straightedge. Most geometry courses cover topics like the construction of perpendicular bisectors, or equilateral triangles. Some mathematicians
The Difference Between a Linear & a Switching Power Supply
A power supply converts commercial 110-volt alternating current, or AC, to low voltage direct current, or DC, to run motors, electronic devices and computers. Power supplies come in two basic designs: Linear and switching. A linear power supply is simpler and more traditional. Switching designs are
How to Make a Fake Volcano Eruption
Fake volcanoes are a classic choice for geology and chemistry science experimentation. They demonstrate how volcanoes erupt and are affected by geological formations, as well as how acids and bases interact. A simple one should take approximately 15 minutes to assemble and use, with cleanup requirin
Guide to Carlton Ware
Carlton Ware began as a partnership between the Robinson brothers and J.F. Wiltshaw in Stoke-on-Trent, England. They were determined to create colorful and functional pottery pieces with a high standard of quality. Those who collect Carlton Ware have hundreds of patterns and shapes to choose from,
Grandfather Clock Case Styles
Grandfather clocks, also known as longcase clocks, are imposing freestanding clocks. The idea for this type of clock originated in 1582 when Italian physicist and philosopher Galileo Galilei found that a pendulum can be used to keep time. In 1656, Dutch scientist Christiaan Huygens built the first g
How Do Deer Antlers Grow?
Deer antlers are growths of bone that deer and similar animals produce for mating season. Only male deer produce antlers, and few deer keep their antlers for long periods. Contrary to popular belief, the size of the antlers and the number of points do not indicate the age of the deer. The size of th
Repairing a Right Chain That Doesn't Move on a Grandfather Clock
One of the key features on a grandfather clock is the chime sound. The chains in grandfather clocks have weights attached to them and control the chimes made by the clock at various time intervals. If the right chain is not moving, and therefore your chime system is not working, then there are a num
How to Make a Homemade Battery Out of Pennies
Batteries are electrochemical devices that are used to provide electrical power. Even though lead-acid or alkaline cells may be the first thing most people think of when they hear the word "battery," batteries can take many forms. One simple type of battery can be created by using a penny, a potato,
How to Build a Catapult
Catapult, also known as a slingshot, is an aim-and-shoot device. It is less powerful than a pistol, but it can seriously injure someone or kill small animals and birds. It is a great weapon to keep an enemy at bay. A variety of things lying in your house can be used to make a catapult. Here's how yo
How to Anodize Color Samples
Anodizing is a finish applied to aluminum parts to protect them from damage and give the pieces a finish that doesn't flake like paint does. The anodizing process is an electrical plating process similar to electroplating. The difference is that anodizing connects the work piece to the anode of the
Oil Usage Facts
Oil (petroleum) is used to create gasoline, diesel, propane and jet fuel, as well as petroleum products like ink and ammonia. The United States uses approximately 18,771,000 barrels of petroleum daily, according to the US Energy Information Administration (EIA).
History of Carnival Glass
Carnival glass is decorative pressed glassware that has an iridescent surface shine. Metallic salts are smoothed on the surface of the glass while it is still hot, which creates the unique sheen. The glassware is then re-fired. This process is called doping, which is why the glass workers refer to
The Definition of Simple Machines
Simple machines are ingenious tools that make work easier and, more importantly, represent basic design elements that have been incorporated into more complex machines to further simplify otherwise daunting tasks. There are six simple machines, most of which have few, if any, working parts. They are
How to Sell Silver Dollars
Selling silver dollars and getting top price means knowing the coin market and learning how to best distribute the coins. This article suggests modern magazines and the Internet to find current values. Selling coins is best done through coin dealers and Internet auction sites.
Cricut Machine Information
The Cricut Personal Electronic Cutter Machine, manufactured by Provo Craft, allows users to make die-cut shapes and letters using paper, card stock, vinyl and fabric for use in making cards, scrapbooking and other paper crafts.
How to Build Your Own LED Dance Floor
You can build your own LED dance floor by wiring lights to illuminate the floor. The type of lights you will need to use for this project are ribbon LED strips. You can use LED lights to create a design or to use as a perimeter border. To do this, you first need to determine how many LED strips to u
Ways to Save Extinct Animals
Conservation efforts have helped to save ecosystem and bring back animals from the brink of extinction. World Wildlife Fund says that the current rate of species extinction is between 100 and 1,000 times higher than the expected natural rate of extinction. This means that the rate of extinction has
How to Test the pH in Dilutions of Acids & Alkalines
pH is a measure of the concentration of hydrogen (hydronium) ions in a solution. Acids like vinegar are substances that donate hydrogen ions to water, while bases like ammonia take them. Since pH is calculated using the negative log of the hydrogen ion concentration, a lower pH means a higher hydrog