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Hobbies & Science : Society & Culture & Entertainment
What Are Some Abiotic and Biotic Features of Polar Bear Habitats?
Like all organisms, the polar bear, Ursus maritimus, lives in a habitat composed of both biotic and abiotic factors. Biotic factors are simply those that are alive or were once living. Abiotic factors are physical and chemical entities other than those comprised of living or once-living beings. When
How Do Comets Change as They Move?
Your medieval ancestors saw comets as alarming interlopers, harbingers of catastrophe or forerunners of impending doom. In the modern world, people know that comets are just giant dirty snowballs -- clumps of ice, rock and organic material tracing long elliptical orbits around the sun. They don't re
How to Measure Behavior From an Ecological Perspective
Measuring the ecological impact of a person's behavior can be a challenge. The effect on the natural environment of particular actions is difficult to quantify because of the number of variables and complexities of interactions in the real world. A qualitative analysis resulting in a general sense o
How to Convert a Frame to a Shadow Box
Shadow boxes provide you with three-dimensional artwork that can serve as a home decoration. Whether you want to display pictures, artifacts or memorabilia, you can make use of a picture frame to create your shadow box. In order to convert a frame to a shadow box, you need a few materials. Recycle a
How Does Sea Level Rise Contribute to Coastal Erosion?
Sea Level Change StatisticsSea levels have risen an average of 5 to 6 feet along the Atlantic and Gulf coasts in the past 100 years. Higher-then-average global temperatures have caused the melting of ice caps and glaciers, adding to the sea level rise. Higher atmospheric temperatures...
Harmful Effects of Algae
Algae can be both harmful and beneficial.abstract algae image by maxthewildcat from Fotolia.comAlgae are protoctists; belonging to the euakaryote kingdom Protoctista, which includes the higher organisms (i.e.not bacteria) not classed as animals, plants or fungi. Because algae...
How to Make Secret Safes
You don’t have to invest in a steel safe to keep your valuables secure at home. It’s easy to make secret safes out of common items, such as empty food cans or boxes. However, a hollowed out hardcover book is one of the most secure homemade safes that can be quickly crafted using minimal
How to Collect Bottle Stoppers
Bottle stoppers were once used as a way of sealing glass bottles, in the days before the invention of bottle caps. Most of these stoppers were made of glass or porcelain, with a cork bottom. The cork kept the stopper firmly on the top of the bottle and prevented the liquid from escaping. As these it
How to Have Elephants in the Home for Luck
Feng shui is the art of arranging objects and furniture in the home or office to bring harmony, luck and balance to your life. It is a heavily symbolic practice, with meanings behind colors, symbols and animals. One animal is the elephant, which is said to bring luck. Although there's no scientific
How to Make a Keg Bung
People have brewed beer in casks all over the world for centuries. One of the quirkiest pieces of hardware on a cask is referred to as the bung and bunghole. The bunghole refers to the hole in the top of the cask. To prevent leakage, a bung or stopper is inserted with pressure to close the cask whil
What Is Soapstone?
Soapstone is a special type of stone that has been used in carvings for many years. It has also had many other uses, as well. Soapstone is rich in various minerals and is a soft type of rock, which makes it so great for carving and sculpting. Soapstone is becoming more regulated lately, but it is st
How to Make a Paper Airplane in Two Minutes Easily
Everyone knows how to fold the basic paper airplane. It is something learned in Scouts, on the playground and whenever we get really bored in school. Although there are plenty of ideas out there about the "best" paper airplane, you might want to know how to make the "quickest." Next time you get bor
How to Convert English Measurements to Metric
English measurements are those measurements of length, area, volume, weight and other physical characteristics whose base units are demarcated in inches, feet, pounds and further base units found in the English standard system. Conversely, the metric system is the system of measurement that relies o
DIY Step Stool Chair
A step stool is a must have in any residence. It is a handy tool that allows you to reach items stashed away on high shelves. If you have guests over and need an extra seat, or you are tired from reaching up high, a step stool can double as a seat. If you have some extra wood lying around and some f
How to Display Pictures on a Foam Board
Foam board is an excellent medium for protecting images used in a presentation or art project. The board enhances the aesthetics of the presentation in addition to preventing potential bends and tears. If you have a presentation due and want it to look its best, try mounting your important images on
What Scopes Go With the 223 AR-15?
The AR-15 rifle is the semiautomatic version of the military's M-16 rifle and is extremely popular with American shooters. AR-15 rifles are available in numerous configurations that are well suited for different kinds of shooting. Likewise, there are a variety of scopes that complement the AR 15. C
How to Calculate Magnification of a Compound Microscope
Compound microscopes are used in many settings (hospitals, schools, laboratories) to increase the magnification of various objects. An image viewed with a compound microscope passes through more than one lens, so determining the magnification is less straightforward than reading the number on the si
Beginner Zippo Lighter Tricks
Since 1933, Zippo lighters have been considered the standard for windproof lighters. For almost as long, people have performed a host of spectacular tricks that can be done with Zippos. Many of these tricks are complex and very difficult to learn, but all Zippo tricks fall into a few basic categorie
How to Calculate & Find Engine Torque
Force is defined as a push or pull. Torque is a rotational force, because it makes objects turn or move in a circle. Engines operate using torque because they rotate shafts to perform activities such as turning wheels in cars. Torque depends on the engine speed, or how powerful an engine is. Power d