Hobbies & Science : Society & Culture & Entertainment

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How to Chart a Family Tree

How to Chart a Family Tree

Having knowledge about your ancestors can provide you with a wealth of important information. Yet organizing this information can be a daunting task once it has been collected. A simple way to chart your family tree is to use the genealogy pedigree method. In this method you start with yourself on t......[Read More]
How to Make a Tobacco Pipe Out of Tin Foil

How to Make a Tobacco Pipe Out of Tin Foil

Tin foil can actually be useful for smoking tobacco as well as storing food. Whether you are an avid pipe-smoker, or you are a cigarette smoker who has run out of cigarettes, you can make a very simple pipe to smoke loose tobacco. Tin foil pipes are reusable, but can also be disposed of and replaced......[Read More]
How to Make a Palm Tree Grow Slower

How to Make a Palm Tree Grow Slower

If your palm tree is one of the skyscraper-types that has already reached a height of 40 to 50 feet, it will soon stop growing on its own. To keep the smaller palm to a more manageable height, especially bonsai palms, requires pruning the roots. Some palms take to root pruning better than others, ac......[Read More]
Difference Between a Regulator & a Conformer

Difference Between a Regulator & a Conformer

Homeostasis is the process of regulating the internal environment to maintain a stable, constant condition, typically in a living organism. There are two ways in which an organism can maintain a stable internal temperature: by regulating their internal temperature to best suit their needs, or confor......[Read More]
Problems With Hydrogen As a Fuel Source

Problems With Hydrogen As a Fuel Source

Hydrogen is an alternative energy source that's one of several possible replacements for fossil fuels like oil and natural gas. There are many benefits to hydrogen. It's clean and can be produced in a variety of ways. There are also many problems with using hydrogen as a fuel source. Scientists stil......[Read More]
How to Decorate Bubble Wands

How to Decorate Bubble Wands

Bubble wands are great summertime toys, and can give children hours of outdoor excitement. Although you can find bubble wands at any toy or department store, they are often cheaply made and generic. One way to make using bubble wands even more exciting is to show your children how they can make and ......[Read More]
What Two Metals Make Pewter?

What Two Metals Make Pewter?

Pewter was first developed during the Bronze Age, and has been used ever since to make objects such as dishes, jugs, cups and decorative objects. Pewter is an alloy of tin, which consists of 85-99 percent tin, but it is actually mixed with several other metals, including copper, lead, antimony, and ......[Read More]
How to Prove a Number Is Irrational

How to Prove a Number Is Irrational

The terms irrational and irrational numbers were derived from the root word, "ratio" meaning fraction. Irrational numbers cannot be expressed in the form of a ratio of x/y, (fractions) because their decimals repeat to infinity. Pi is an example of an irrational number. Pi as a decimal is 3.141592653......[Read More]
What Elements Make H2O?

What Elements Make H2O?

Water is made up of the elements oxygen and hydrogen. It makes up more than 70 percent of the earth's surface and 97 percent of that is salt water, 2 percent is glacier ice and less than 1 percent is fresh water for drinking and other daily uses. The recommended daily water requirement for sanitatio......[Read More]
Movie Poster Size Specifications

Movie Poster Size Specifications

Movie theaters use both their interiors and exteriors to advertise films, putting posters on bulletin boards, windows and walls. All designs are collectible and knowing how to pick a good collector's poster is essential to starting a hobby in the field. The buyer must take size, print material and t......[Read More]
How to Find the Relative Error

How to Find the Relative Error

All physical quantities can be measured. But the majority of measurements cannot get the true value exactly. The difference between the true value and the measured one is called the absolute error. The latter parameter does not completely characterize the measurement accuracy. For instance, the same......[Read More]
How to Make a Tumbleweed Prop

How to Make a Tumbleweed Prop

Tumbleweed props are used in school plays and small theater productions. Making the prop is a simple process that was learned by many students in their primary years of school. The process involves the use of packaging string, white glue and a large balloon. The finished product is spray-painted bro......[Read More]
How to Make a Ceramic Plate

How to Make a Ceramic Plate

Ceramic plates make great gift ideas, especially for people who enjoy tinkering around the kitchen. They are available in a variety of shapes and sizes, decorated in a number of ways according to one's preferences. A ceramic plate can be made from either natural or specially formulated clay. Y......[Read More]
Which Carbons Are Bonded to Four Different Substituents?

Which Carbons Are Bonded to Four Different Substituents?

Carbon that has single bonds only and no double bonds is called sp3-hybridized. An sp3-hybrid carbon will have four other atoms attached to it. These atoms need not all be different. In the case of methane, for example, the central carbon is bonded to 4 hydrogens. If the carbon has four different su......[Read More]
How do I Make Printed Circuit Boards & Prototype Boards With Toner?

How do I Make Printed Circuit Boards & Prototype Boards With Toner?

If you have a laser printer, you can make your own printed circuit boards (PCBs) for electronic hobby projects. The materials are inexpensive and easy to find. The laser printer makes an accurate toner pattern on the paper, and the toner protects the copper from the etching process, producing clean ......[Read More]
How to Build a Morse Code Setup

How to Build a Morse Code Setup

Morse code has remained in active use in modern times by ham radio operators and the U.S. Coast Guard. Although the Coast Guard has recently stopped using it in favor of other digital forms of communication, ham radio operators still make heavy use of the international Morse code. If you desire to c......[Read More]
What Is Carbonate Buffering?

What Is Carbonate Buffering?

The bicarbonate, or carbonate, buffer system is one of the most important buffering systems in nature. Like any buffering system, a bicarbonate buffer resists change in pH, so it helps stabilize the pH of solutions like blood and ocean water. Ocean acidification and the effects of exercise on the bo......[Read More]
How to Make a Rock Out of Clay

How to Make a Rock Out of Clay

Polymer clay is a versatile substance that can be used to mimic a wide variety of material and rock is no exception. Creating fake rocks using stone is a great way to incorporate a natural and rough look into your crafts or into your own decorating. While working with stone requires carving, tumblin......[Read More]