Hobbies & Science : Society & Culture & Entertainment
Adding emoticons -- facial expressions made with keyboard letters, symbols and punctuation -- to an email, text or instant message can help you express how you're feeling or add emphasis to a statement. Lack of face-to-face contact and body language in e-communications can sometimes make it hard for
Water pollution is an important environmental concern, so it's little surprise that game designers have created titles that promote awareness of the issue in an entertaining fashion. Teachers can use these games to educate their students about the causes and dangers of water pollution; other individ
The motions of pendulums have fascinated scientists for hundreds of years. In the 1600s, Galileo Galilei performed some of the first experiments to find the relationship between the length of a pendulum and the time of its swing. A classical pendulum consists of a weighted bob attached to the end of
Scientists use units of concentration to describe the amount of a chemical substance dissolved in a given volume of liquid. There are many different units for this purpose, including percent by weight or volume, molarity and parts per million (ppm). When two solutions of the same chemical but having
A wooden toy box provides useful storage and enhanced household safety with the removal of toys left on floors and stairs. It also provides an aesthetic keepsake for a child for years to come. Building your own wooden toy box saves money on the retail cost of the items and allows you to customize th
Cordura fabric has become a popular material for use in a wide range of gear, from hiking boots to ballistic vests. Incredibly rugged and often waterproofed, items made with Cordura fabric can still become damaged over time with hard use. Cordura may come in different weights and weaves but, because
If you're looking for a quick and easy craft project using recycled materials, a beer can airplane fills the bill. It's easy to create a simple airplane out of a few beer cans and some glue. Take a few minutes to make this eco-friendly decoration for your own home.
Uninvited animals in or around your home usually are considered pests. Use a live trap to solve the problem humanely. Live traps can be bought, or you can make your own. Follow these plans to build an 8x8x28 trap suitable for a rabbit-size animal. The trigger for this trap is a notched piece of wood
Vesuvius, St. Helens, Kilauea: these are some of the best-known volcanoes on earth. They have been known to spew lava, ash, smoke and devastation across their regions in an impressive display of Mother Nature's power. You can make your own erupting volcano molded in clay at home. All you need are a
Eclipses are among the most spectacular phenomena easily visible from Earth. Two separate types of eclipses can occur: solar eclipses and lunar eclipses. Although these two types of eclipses are, in some ways, quite similar, they are also two entirely different occurrences.
Many middle and high schools across the United States offer wood shop classes to interested students. In wood shop, students learn how to use tools to build crafts that can be used around the house for practical or personal reasons. In many cases, students are asked to build a project for...
A DC motor requires direct current electrical energy, which is what "DC" denotes. Because the electrical current running through this type of motor flows in only one direction, a DC motor can be reversed by reversing the polarity of the voltage applied across the motor leads. One simple type of DC m
Miniature bearings allow rotation of a wheel on a rotating shaft fluidly without friction. Miniature bearings are used in remote control cars and trucks, skates of all types and skateboards. The balls inside the race of a bearing need lubrication to allow the wheel to spin correctly. Non-lubricated
Kahr pistols are among the most popular semiautomatic pistols on the market. Their small size and ease of use make them popular in law enforcement, the military and among collectors. Like any firearm, the Kahr K40 must be regularly maintained and cleaned for maximum safety and performance. With the
Oil spills have toxic and long-lasting effects on the environment. Animal life near a spill can be devastated. Oil is especially toxic to trees and plants. While the effects of an oil spill can be lessened if it occurs on a body of water with a great deal of movement, this is not the case if the spi
Chenille rotary cutter techniques can allow you to create chenille fabrics in any color or pattern you desire. While making chenille is a rather time consuming process, it is an excellent way to make something new and different out of all sorts of fabrics while adding texture and color to your quilt