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Hobbies & Science : Society & Culture & Entertainment
Disadvantages of Alternative Fuels
Critics cite the disadvantages of alternative fuels as reasons we should not hastily steer away from fossil fuels for our energy needs. This is frustrating to those who are anxious to reduce dependency on foreign oil and to save the environment from further damage caused by drilling, mining and poll
Mountains in the Southern Hemisphere
The Earth's Southern Hemisphere consists of the area south of the Equator, or zero degrees latitude. Within the Earth's southern half lies numerous mountain ranges and mountain peaks exceeding 10,000 feet. The ranges generally formed from the uplifting of rock at plate boundaries. Many of the Southe
Greenhouse Gas Sources
Human acitivity has added extra greenhouse gases to the atmosphere leading to global warming.Henrik Weis/Photodisc/Getty ImagesGreenhouse gases trap heat in the atmosphere and warm the planet. At naturally occurring levels, greenhouse gases keep the planet's temperature within range for...
How to Convert From ColdFusion to MySQL
The richness of today’s Web content owes much to the diversity of programming languages available to developers. Platforms such as Java, ColdFusion and MySQL have enabled a wide range of features and applications, including streaming video, e-commerce and database management. ColdFusion and My
How to Make a Priestess Bow
When you are dressing up like a druid priestess, you can make the outfit look more intricate and authentic by including a thematic accessory, such as a bow. Although you can buy a toy bow at a toy store or costume shop, they are often plain and do not encompass what a druid priestess would carry and
How to Cut Glass With a Nail File
When you do not have a glass cutter, a simple metal nail file works well. A traditional glass cutter is made from cast aluminum. They tend to break when you're in the middle of a project. Using a metal nail file as an impromptu glass cutter is sometimes necessary. It takes several passes to scra
How to Use a Paratrooper Knife
The paratropper knife, more accurately known as the pantographic knife, is a knife whose blade is exposed by a scissoring action of the handles. The knife is unique because it is enclosed on both sides thus allowing double-edged knives to be used.
Information on Fenton Glass
The Fenton Art Glass Co., the largest manufacturer of handmade colored glass in the United States, is famous for creating marvelously colorful glassware. Although the company fell on difficult times in the 1930s and 1940s, it survived and achieved a resurgence in popularity, becoming a favorite with
Basic Sources of Water
Water covers approximately two-thirds of the earth's surface, only 3 percent of this amount consists of fresh water. Of this already small percentage, only a third is in liquid form; the majority of the rest remains frozen in polar icecaps and glaciers. With most of the unfrozen fresh water is groun
How to Make a 3D Eyeball
When you are learning about anatomy, you can solidify the information you are learning about in your brain by creating a 3D representation of a specific body part. For example, you can make a 3D model of an eyeball using a few art supplies, like polymer clay and craft wire. This can allow you to not
How to Remove & Dissolve Glue
When working with glue, accidents happen. Sometimes the tube overflows, or more pours out than you expect, and you wind up with a sticky situation. There are methods you can use to dissolve glue for easier cleanup, many of them involving nothing more than simple, household items.
Who is Hermann Von Helmholtz?
Hermann von Helmholtz (1821-1894) was a prolific German scientist who added to the understanding of several different areas of science. He was a physicist and physiologist whose work made advancements ranging from the field of mechanics, physic, ophthalmology, sensory physiology, acoustics, mathemat
How to Make a Handheld Windmill
Windmills have historically used the power of the wind to generate electrical power and pump water. A handheld windmill is a useful tool to teach about wind-generated power. These windmills are also used as toys for children and decorations for outdoor gatherings. A handheld windmill is simple enoug
Storing NiCd Batteries
It's a sensible precaution to have a small store of nickel cadmium (NiCd) batteries. You never know when you may need to replace a dead one and NiCd batteries do start to lose their ability to retain power after a while. However, you need to ensure that when you need to replace a battery and use one
How to Calculate the Pull of Air Underwater
Air underwater experiences a strong upward pull from the upthrust, or buoyancy, that the water exerts on the air. Water is much more dense than air, so gravity pulls the water below the air, forcing the air to the surface. According to Archimedes's Principle, this force equals the downward force, or
Homemade Gold Prospecting Equipment
When gold prices skyrocket, gold prospecting can be a lucrative hobby for individuals. However, buying modern equipment to efficiently find those elusive gold nuggets is expensive on the private level. Most of these pieces can be built out of household items inexpensively, much like the gold prospec
How to Solder Electronic Parts On a Circuit Board
Electrical and electronic components can be connected to each other in several ways. When temporary or semi-permanent electrical connections are needed, electrical plugs, ring terminals, spade terminals and quick-disconnect splice joints are commonly used. However, when a permanent connection must b
How to Make a Hot Water Bottle Cover
With basic sewing skills, you should be able to make your own hot water bottle cover. Choose a soft fabric, such as felt, flannel or fabric fleece. A third of a yard should be plenty of material for a single cover.
What Kind of Drill Bit Do I Use to Cut Granite?
Granite is quite luxurious, and also expensive. After you have spent hundreds of dollars on the slabs for your countertops, floors or other areas, you may be hesitant to spend even more on labor to drill holes for various home projects. If you are not an experienced craftsperson, hire an expert. How
Gifts to Make Out of Foam Sheets
If you’re interested in creating a homemade gift but are short on time and money, look to your craft store’s foam section. Colorful sheets of foam await your crafty ideas. Foam sheets are lightweight, inexpensive squares, usually about the size of standard 8 1/2- by 11-inch...