You've Selected
Category
» Hobbies, Games & Toys » Science & Nature » Science remove
clear your selections

Science

Sort by:
Best Match
Most Popular
Newest

Showing 1-50 of 6,960 results

  • Acid Reflex

    Acid reflux drugs work in different ways, but all have the goal of reducing the acid in the stomach. Many also treat ulcers of the stomach and digestive system that can be caused by excess acid....

  • Acid Base

    Yvonne Romero, M.D., of the Gastroenterology and Hepatology Department of the Mayo Clinic in Rochester, Minnesota, explains that antacids are not a long-term solution for chronic acid reflux...

  • Acid Facts

    Acid rain is precipitation that falls to the ground and is highly acidic. Rain, snow, sleet and fog can all contain higher than natural levels of acidity. Acid rain destroys natural resources and...

  • Altitude Illness

    altitude illness

  • Altitude Sickness

    altitude sickness

  • Alto Sax

    The E-flat alto saxophone and the B-flat tenor saxophone are the most common instruments in the sax family for beginners. The alto sax is a bit smaller in size and often the one chosen by younger...

  • Alto Saxophone

    The E-flat alto saxophone and the B-flat tenor saxophone are the most common instruments in the sax family for beginners. The alto sax is a bit smaller in size and often the one chosen by younger...

  • Atomic Bomb

    atomic bomb

  • Barometric Pressure

    Dogs often appear to have a sixth sense when it comes to the weather. This can be explained by the fact that dogs have the ability to detect changes in barometric pressure that humans cannot.

  • Barometric Pressure Effects

    A change or drop in barometric pressure as well as rise in humidity or extreme changes in temperature are common triggers for a migraine attack.

  • Battery Lights

    Batteries are used for providing direct current (DC) electrical energy to electrical devices. Determining which battery is appropriate to power the electrical device is important, because if the...

  • Briggs & Stratton

    The Keirsey and Myers-Briggs personality tests, or typologies, are maps of human personalities. The two tests seem similar, especially when compared with other non-psychological typologies....

  • Build Electric Motor

    If you're looking for a science fair project, you may want to build this simple electric motor. An electromagnet results when the electrical current produced by the battery runs through the wire...

  • Calculate Density

    Specific density, more commonly referred to as "specific gravity," is the ratio of the density of one substance to the density of water, as noted in Schetz's "Fundamentals of Fluid Mechanics."...

  • Calculate Velocity

    The kinematic equations in physics are four really nifty formulas to find 1) velocity as a function of time, 2) velocity as a function of position, 3) position as a function of velocity and time,...

  • Calculating Kinetic Energy

    Escape velocity is the speed something has to go to break through Earth's gravitational pull. Escape velocity is important for rockets and space shuttles. They cannot get into outer space unless...

  • Calculator Functions

    Your trig teacher requires you to have a graphing calculator to use during class, how a graphing calculator works or if you want to tackle the learning curve required to use one. Here are some...

  • Cell Structure

    Every living organism is made up of cells, which are the smallest living organism known to science. With thousands of types of cells within the animal-like and plant-like classifications, one...

  • Cellular Respiration

    The process of cellular respiration uses oxygen to break down sugars (stored energy) and gives off carbon dioxide as a byproduct. On the opposite side, photosynthesis uses carbon dioxide to store...

  • Celsius To Fahrenheit

    Phew! It's 37 degrees Celsius in here! Wait a minute, is that hot? Whether traveling the web or traveling the world, being able to convert Celsius to Fahrenheit is a great skill to have. With a...

  • Chemical Formula

    Chemical formulas represent a common notation used to describe the components of a compound. Chemical formulas use abbreviations of elements and subscript text to note their quantities. For...

  • Chemical Reactions

    Chemical reactions change molecules into other molecules. They don't change atomic nuclei, thus, they can't change elements into different elements. Instead, they affect the electrons in the...

  • Christian School

    Many families are turning to home schooling as a way to return Christian beliefs to their kids' curriculum. Locating quality a Christian home school curriculum is essential. By following a few...

  • Citric Acid

    Citric acid is a natural organic acid which in 1784 was first isolated from lemon juice by Carl Scheele. It is still derived primarily from lemon juice. One of the most important effects of...

  • Coliform Bacteria

    Coliform bacteria are an umbrella term for many types of bacteria, some of which can make humans ill. It has been found in food and drinking water, and its presence is an indicator of other...

  • Conjugated Linoleic Acid

    There are so many popular fad diets and diet pills on the market today that sometimes it seems as though buying into all of it is the only way to succeed with your weight loss goals. However,...

  • Convert Celsius

    Phew! It's 37 degrees Celsius in here! Wait a minute, is that hot? Whether traveling the web or traveling the world, being able to convert Celsius to Fahrenheit is a great skill to have. With a...

  • Convert Celsius To Fahrenheit

    Phew! It's 37 degrees Celsius in here! Wait a minute, is that hot? Whether traveling the web or traveling the world, being able to convert Celsius to Fahrenheit is a great skill to have. With a...

  • Convert Centimeters

    Google's built in calculator is easy to use and offers a wide range of options. Apart from the common functions, it also supports more advanced scientific calculations. Converting inches to...

  • Convert Feet To Meters

    Whether you're doing homework, running or measuring, being able to convert feet to miles can be useful. Use the following steps to make the calculation with ease.

  • Convert Grams

    Both gram and AMU (atomic mass unit) are units of measure. The gram is a much larger unit than the AMU. It is a unit we can use in the everyday world--we go out shopping and ask for 500 grams of...

  • Convert Measurements

    For complex spreadsheets where many calculations must be performed, unit conversions may need to be done before they can be used. If you have measurements that were taken in one unit, you can...

  • Convert Meters

    Electrical conductivity quantifies the quality of a substance to conduct electricity. Conductance, on the other hand, quantifies this quality for a specific object. Being a more general measure,...

  • Dangerous Acids

    Acids release hydrogen ions when dissolved in water. Hydrogen (H) is usually the first element noted in a formula for an acid. Next noted are the one or two nonmetal elements in the acid. It's...

  • Dc Motors

    When power is removed from a DC (Direct Current) motor, it may continue to spin if the mechanical load is light. Electromechanical devices may be incorporated to stop the motion, or an electrical...

  • Dc Power

    DC power supplies are ideal for short-range needs for electricity due to the consistency of electricity transmitted by the power source. Although DC power is not ideal for long distance...

  • Distilled Water

    Bottled water has a variety of sources and, therefore, brands differ. Distilled water, on the other hand, is always free of minerals and other substances typically found in drinking water.

  • Dna Extraction

    DNA extraction is a multi-step process by which the genetic material within cells is removed and purified. Analysis of DNA after extraction can be a very potent tool for both medicine and...

  • Dna Methods

    Determining the paternity of a child is a serious matter. Both positive and negative determinations can affect the lives of individuals. Many criminal cases have been solved using DNA technology....

  • Dna Models

    The DNA (Deoxyribonucleic acid) model is a double helix that is a representation of the basic building blocks of the genetic blueprint for the reproduction of life. The structure is modeled to...

  • Dna Testing

    DNA testing is used for a wide variety of purposes, including disease testing, forensics and genealogy research.

  • Dna Uses

    DNA fingerprinting, also known as DNA profiling or DNA testing, is a technique used to identify people based on their genetic material. Forensic scientists often use DNA fingerprinting as evidence...

  • Dry Ice

    Dry ice is solid carbon dioxide that forms when some refrigerated liquid carbon dioxide vaporizes, leaving behind solidified carbon dioxide with the texture of snow. The dry ice available to buy...

  • Earth Magnets

    An electromagnetic floater is a device that floats metal objects between two magnets. The two magnets create a force between them and allow the objects in the middle to appear as though they are...

  • Electric Capacitor

    Testing a capacitor with a basic analog (needle type) ohmmeter is a fast method for determining the viability of the electrical device. In most cases, the analog meter will show the strength and...

  • Electric Generators

    Electric generators are "energy converters" that turn heat energy or kinetic energy (energy of motion) into electrical energy. The basic theory behind an electric generator is that variation of a...

  • Electric Motor

    Pontoon boats have become versatile fishing boats. Pontoon boats are highly maneuverable, have enough power to get to the fishing grounds and can be rigged for almost any freshwater fishing. One...

  • Electric Motor Troubleshooting

    Nissan is one of the top manufacturers for outboard boat motors. Like any machine, Nissan outboard motors can often have problems, but the company provides some basic troubleshooting methods that...

  • Electric Motor Work

    Pontoon boats have become versatile fishing boats. Pontoon boats are highly maneuverable, have enough power to get to the fishing grounds and can be rigged for almost any freshwater fishing. One...

  • Electricity Definition

    Continuity is one of those words that have a different meaning according to the subject you are dealing with at the time. Most of the time, we think of continuity as showing something that simply...

  • Electricity Facts

    Electric snowblowers are very powerful machines that are easily capable of causing injury if proper safety precautions are not taken. They are responsible for a large number of accidents seen in...

  • Electricity For Kids

  • Electricity History

    Perhaps because reading and writing were rare a few hundred years ago, we have limited knowledge of the stories of our ancestors and their lives. The papers that have survived are treasured. Begin...

  • Electricity Use

    The Energy Star program lists products, such as refrigerators, that save energy. Because 70 percent of electricity is produced by coal and natural gas, lower electricity use by Energy Star...

  • Empty Bottle

    Making a puppet using an empty bottle and a broomstick handle is one of the easiest arts and crafts projects you can do. A personalized puppet is a great way to spend a lazy afternoon with the...

  • Energy Facts

    Nuclear energy is created from the energy in atoms, and there are two different ways it is produced, although only one--fission--is currently a viable method.

  • Energy Use

    Making some simple changes when cooking meals can not only reduce your energy bill, but also minimizes your effect on the environment. The key to using less energy while cooking is understanding...

  • Enzyme Uses

    Odors are caused by small particles that break away from the source substance and float through the air. In the case of synthetic chemicals and substances like plastic, the smell is usually...

  • Experiments For Kids

    Bernoulli's Theorem, also known as Bernoulli's Principle, states that an increase in the speed of moving air or a flowing fluid is accompanied by a decrease in the air or fluid's pressure. This...

  • Find Magnet

    Magnet schools are popular alternatives to regular district schools. Gifted children often benefit from being in a school that has a curriculum that complements their interests and talents....

  • Fossil Fuel Use

    Fossil fuels are defined as any naturally occurring organic fuel that is mined from the earth, such as petroleum, coal and natural gas. The burning of fossil fuels to run our car engines and heat...

  • Fossil Fuels

    Fossil fuels are defined as any naturally occurring organic fuel that is mined from the earth, such as petroleum, coal and natural gas. The burning of fossil fuels to run our car engines and heat...

  • Genetic Engineering

    Genetic engineering may sound totally modern, but farmers have been genetically engineering fruit trees for centuries. The methods used can range from the primitive to the cutting edge. You can...

  • Gibberellic Acid

    Citric acid and ascorbic acid tend to become confused in our thinking--understandable since they're both found in citrus fruits and are both acids. But one of them is an important vitamin for good...

  • Greek History

    Have your home bursting with the taste and feel of an authentic Greek restaurant. Wow your guests with scrumptious Greek cuisine, music and a party they will never forget. Opa!

  • Health Information Technology

    If you are interested in the health care field, but want a position that doesn't involve patient care, investigate a career as a Registered Health Information Technician. According to the American...

  • How Magnets Work

    The search for making a perpetual magnetic generator is not a new one. The inventor, Peter Peregrinus, created what is known to be the earliest "magnet motor device" in 1269 A.D. There are many...

  • Identifying Clouds

    Weather is dynamic. We see this most dramatically when clouds form, combine and dissipate. We can watch them, follow their evolution and learn much about our climate.

  • Jakob Creutzfeldt

    Creutzfeldt-Jakob disease is an incurable neurological disorder. It causes a build-up and malformation of prions (a type of protein) on the brain cells ultimately leading to brain damage and...

  • Kids Science Experiments

    There are so many distractions preventing children from realizing their full potential. Since teachers are forced to focus on the fundamentals of reading and math, subjects such as science aren't...

  • Lab Equipment

  • Learn Urdu

    The Worker's Education Association (WEA) promotes easy educational access for adult U.K. citizens from all backgrounds. A volunteer-run charity, the WEA operates on local, regional and national...

  • Lightning Bugs

    Catching lightning bugs or fireflies can be the highlight of many children's summer evenings. Male fireflies blink as they fly to signal to female fireflies on the ground in a nest. Different...

  • Lightning Protection

    While lightning rods and surge protectors both deal with electricity, they are distinct in their purpose and function. One protects the building structure; the other protects the electronic devices.

  • Lipoic Acid

    The Alpha Protein Acid diet refers to a diet rich in alpha lipoic acid, a powerful antioxidant. Diabetics and athletes are among the people who might be interested in increasing their alpha lipoic...

  • Magnet Wire

    From the smallest computer fans to the largest electrical relays, electromagnets play a large role in everyday life. Electromagnets typically contain an iron core, and have magnet wire wound...

  • Magnetic Boards

    Organize memorabilia, office memos and family reminders on a bulletin board that doesn't require pins or clips. Create a magnetic board with supplies from craft and hardware stores that's not only...

  • Make A Dna Model

    DNA is the basic building block of every living thing. DNA is so important that every school requires its students to understand how it works. Making models to demonstrate the process is a common...

  • Make Distilled Water

    Bottled water has a variety of sources and, therefore, brands differ. Distilled water, on the other hand, is always free of minerals and other substances typically found in drinking water.

  • Making Electromagnets

    Directional compasses work by sensing the electromagnetic energy fields produced by the Earth's core. Much like a magnet, the Earth has a magnetic north and south pole, which creates enough...

  • Measurement Units

    Microsoft Word gives you the flexibility of being able to change the measurement units that are displayed in Microsoft Word. As a default, Word uses inches as the measurement unit. When you change...

  • Methane Gas

    People often hear methane gas when talk turns to harmful emissions in the environment. There are two sources of methane gas. It can be caused either by human activity or by nature. Methane gas is...

  • Neodymium Magnet Magnets

    Neodymium speaker drivers are the newest in speaker technology, offering increased power and decreased weight. The terms "speakers" and "drivers" are sometimes used interchangeably, and refer to...

  • Nickel Ore

    Nickel, the 28th element, comprises 60,000 parts per billion of the matter in the universe. Nickel is the weakest of the three ferromagnetic elements. The following steps will aid in your search...

  • Nuclear Advantages

    Nuclear energy is created from the energy in atoms, and there are two different ways it is produced, although only one--fission--is currently a viable method.

  • Nuclear Disadvantages

    Nuclear energy is created from the energy in atoms, and there are two different ways it is produced, although only one--fission--is currently a viable method.

  • Nuclear Energy

    Nuclear energy is created from the energy in atoms, and there are two different ways it is produced, although only one--fission--is currently a viable method.

  • Nuclear Plants

  • Nuclear Power

  • Nuclear Power Plants

    High oil prices and concern over global warming have renewed interest in nuclear energy, which as a means of generating commercial electricity, had been moribund in the United States since the...

  • Nuclear Technology

    Although the nuclear medicine specialty is small, technicians are in demand jobs at hospital nuclear medicine and radiologic technology departments. The field for Nuclear Medicine Technicians has...

  • Ore Weather

    The earth's core is made up of iron ore. Early man made tools and weapons from the iron ore they extracted from the earth and refined. Only meteorites carry pure iron ore, and the deposits locked...

  • Oxygen Water

    We all know that water plays a vital part in our health. Technology has taken it a step further and possibly improved our drinking water with oxygenation. The jury is still out on whether...

  • Periodic Table

    Nuclear energy is produced through radioactive decay. Though you can find radioactive elements anywhere in the periodic table, most nuclear energy comes from the actinide elements in the table's...

  • Petri Dishes

    Petri dishes are a common item found in both professional and educational science labs. Unfortunately, budget restrictions force companies and educational establishments, such as high school and...

  • Ph Testing

    One of the tasks that you need to perform to maintain your aquarium is monitoring the pH of the water. This will tell you if the water is acidic, alkaline or neutral. There are many instruments...

  • Plant Cells

    Plant cells differ from animal cells in that they contain cell walls and chloroplasts. They are eukaryotic cells with the ability to perform photosynthesis, except for those found in the roots...

  • Pop Bottles

    Pop bottle collecting allows you to get into the fresh air and nature while providing you will some healthy, old-fashioned exercise. Not only will you get a rush of adrenaline when you find old...

  • Printed Board

    Circuit boards are common in most electronic gadgets today, but inventors and home hobbyists often strive to create something new. Because they need particular circuits that they can't buy in any...

  • Pro Energy

    What's worse than your heater breaking down in the dead of winter? To ensure your warmth and prevent problems and expenses, it is imperative that you have your heating system serviced once per...

  • Producing Electricity

    Today electricity generation systems for homes are available that can reduce your home energy costs substantially if not completely. Small electricity generation systems can be built or purchased...

  • Properties Of Acids

    Acids release hydrogen ions when dissolved in water. Hydrogen (H) is usually the first element noted in a formula for an acid. Next noted are the one or two nonmetal elements in the acid. It's...

  • Protective Coveralls

    Wasps are actually helpful insects because they prey on many plant-eating pests. Usually wasps prefer to avoid humans, but if they nest too close to a dwelling, they can present a problem....

  • Pure Water

    Water is life and health is wealth. Therefore, we must protect our lives safe by drinking clean water. Read on to learn more.

  • Quark Xpress

    The printing industry has transformed during the last decade due to the radical improvements in computer technology. So, the days of old-fashioned hometown printers are all but gone. However, the...

  • Rain Gauge

    Rain gauges are devices designed to measure how much rain was received at a specific location over a designated period of time. Rain gauges are easy to use and can act as an accurate way to...

  • Science For Children

    Children's science toys teach kids about the world while giving them a chance to have fun while learning. There are a wide variety of science toys on the market, and many manufacturers competing...

  • Science For Kids

    Science journals or science notebooks are becoming a popular tool used in many science classrooms. These notebooks allow students to improve their communication skills in science. They provide a...

  • Static Electricity

    Rubbing slippered feet along the carpet to generate static electricity, in order to playfully zap a friend or family member might seem like a harmless game. But the spark from static electricity...

  • Table Salt

    Kosher salt is a large-grained, flaky salt that was originally developed for the purpose of koshering or treating meats to conform to the standards of Jewish dietary law. Unlike table salt, kosher...

  • Testing Acidity

    When the time comes to beautify your lawn and gardens with new landscaping, it is vital to know the acidity of your soil. This will help determine what types of vegetation will grow best in your...

  • Thermal Conductivity

    Thermal conductivity describes the ability of a material to conduct heat. According to HyperPhysics, heat is conducted through a liquid by the agitation of molecules. The heat source increases...

  • Uranium Ore

    Actinium, the 89th element that glows blue due to its intense radioactivity, constitutes less than one part per billion of all matter in the universe. Students of science can find out more...

  • Uses For Helium

    Heliox is short for "helium-oxygen" and refers to any gas mixture composed entirely of helium and oxygen. Heliox is primarily used as a breathing gas for medical purposes and deep diving. The...

  • Uses For Nuclear Energy

    Nuclear energy is created from the energy in atoms, and there are two different ways it is produced, although only one--fission--is currently a viable method.

  • Volcano Eruptions

    Until recently, volcanic eruptions were feared, but accepted as unavoidable and unpredictable natural phenomena. With improvements in monitoring technology, however, scientists are now usually...

  • Water Facts

    Water pressure is simply the weight of the water divided by the area of water in question. This calculation applies to a diver as much as it applies to a reservoir feeding a faucet in someone's...

  • Weather Balloons

    Having your own weather balloon can give you an interesting hobby. There are many societies that offer amateur meteorologists the chance to get together and share their techniques and findings...

  • Weather Conditions

    Weather is the stereotypical and democratic conversation starter: Everyone can say something about it, and it's rarely truly boring. But it's not just a subject for socializing: It affects us all,...

  • Weather Facts

    The Earth's atmosphere can be thought of as layers or bands encircling the planet. Each layer has its own characteristics. The stratosphere is the layer of atmosphere about 6 to 30 miles (10 to 50...

  • Weather Forecasts

    You like to play video games with your friends and family, or even by yourself, but sometimes you're afraid you miss out on what's going on. With a wireless Internet connection and the Nintendo...

  • Weather Station

    If you have a weather buff in your midst or you're addicted to The Weather Channel, consider purchasing a home weather-monitoring system. Learn what to consider and how to select a system that's...

  • What Is Carbon Dioxide

    Carbon dioxide poisoning is also known as hypercapnia and respiratory acidosis. Carbon dioxide comprises only 385 parts per million in our atmosphere, but it can accumulate in the blood to toxic...

  • Zero Gravity

    Taking a weightless or zero-gravity flight may be one of the most thrilling experiences of your life. As it becomes a more popular form of thrill-seeking, more people are looking into the...

  • Zinc Ore

    Zinc, the 30th element, comprises 300 parts per billion of all matter in the universe. Zinc is the fourth most commonly used metal and has many applications. The following steps will aid in your...

  • How to Make High Energy Pulser

    You may hav searched internet and found some interesting projects like pulse power projects like Coil crusher, Wire exploder, plasma gun etc. All of them need you to build High energy pulser. But...

  • How to Understand Gravity

    How does gravity work? You know it's reliable, but why is it there? This article will break it all down for you, and you'll be wowing your friends in no time.

  • Difference Between Ionic and Covalent Hydrogen

    Ionic hydrogen and covalent hydrogen are atoms of hydrogen bound to other atoms. The difference between the two is the type of chemical bond that connects the hydrogen atoms to the other atoms.

  • What Is High Vacuum Distillation?

    Basic distillation entails bringing a liquid up to boiling, capturing the evaporating materials and allowing them to condense. This may be done to remove impurities or to separate components of a...

  • How to Calculate Boyle's Law

    Boyle's law is a chemistry principle that describes the relationship between the pressure and volume of a gas at a constant temperature. The two properties are inversely proportional: As one goes...

  • How to Calculate an Area in Meters

    The area of a given space is calculated in meters by determining the length and width of the space in meters and then multiplying those values together. The resulting number is the area of the...

  • Types of Lab Exhaust Hoods

  • Microscope Calibration Procedures

    The microscope is a unique tool that allows you to see things many thousands of times smaller than what can be seen with the naked eye. In order for a microscope to be used properly, you must know...

  • Advantages of a Wire-Wound Potentiometer

  • How to Calculate Current Parallel Circuits

    Solving for the electric currents through parallel circuits powered by the same voltage source is a matter of applying Kirchhoff's junction rule and Kirchhoff's loop rule, as discussed in Halliday...

  • How to Troubleshoot a Circuit Board Capacitor

    While capacitors may last decades on a circuit board, they're subject to age, manufacturing defects and damage from voltage spikes. Sometimes a bad capacitor will give visual clues you can spot...

  • How to Make a PCR Primer

    PCR, or polymerase chain reaction, is a method used in molecular biology to amplify very small amounts of DNA. A PCR reaction mixture requires template DNA, DNA polymerase, primers, and dNTPs...

  • What Are Powerful Sources of Energy?

  • Uses of Redox Titration

  • How to Measure Two Resistors in Parallel

    Consider, as an example of resistors in parallel, a setup with a 9-V battery powering a circuit with a single wire leading away from the negative terminal and passing through an initial resistor,...

  • How to Calculate the Number of Turns for a 110/12V Electrical Transformer

    Circuits on opposite sides of a transformer both have an extent of their wiring wrap several turns around the magnetizable material in the transformer. That way, the primary circuit, the one that...

  • Science Games to Play

  • How to Calculate Spheroid Area

    Standard formulas make it relatively easy to calculate both surface area and volume of a sphere, as long as the sphere's radius is known. Think of surface area as the space occupied by the...

  • How to Charge 8-Cell NiMH Batteries

    Rechargeable batteries are increasingly popular because of the eco-friendly waste reduction these items contribute to our landfills. NiMH batteries are one type of rechargeable batteries. Other...

  • How to Calculate a Right Triangle

    As with all triangles, right triangles are constructed of three connected sides and three angles between the sides. What makes right triangles special is that, by definition, one of those angles...

  • How to Calculate Exponential Function

    An exponential function has a constant as the base of a variable exponent. Of course, when the exponent assumes a positive integer value, the function merely equals the product of that many bases....

  • How to Calculate Time in Decimals

    Time is traditionally expressed in hours, minutes and seconds. This format is convenient for general use, but is inappropriate in mathematical operations. Calculations typically require the...

  • Paper Drill Troubleshooting

    Paper drills are drilling machines designed especially to drill holes through very large quantities of paper very quickly. This is especially useful when manufactures create large amounts of paper...

  • The Preparation of a Polyacrylamide

    Preparing a polyacrylamide usually results in the production of a gel. To prepare a polyacrylamide gel, you will need to polymerize acrylamide. Acrylamide in its unpolymerized form is a...

  • How to Revive Rechargeable Batteries

    Rechargeable batteries are batteries that can be recharged and used again, unlike the one-time-use batteries. You can buy a battery charger in order to recharge the batteries, and they come in all...

  • Warm Up Method for a Natural Gas Industrial Furnace

    Natural gas furnaces use gas combustion to provide heat that warms both air and water as needed. Factories use large versions of these systems to quickly heat air for a large area, or to heat...

  • How to Make a Coke Can Boat

    Don't just toss out that empty Coca-Cola can when you're done with it. There is a wonderful craft project that can be done using that can: the Coke can boat. You can actually make a functioning,...

  • How to Calculate Falling Distance

    You can easily calculate falling distance from the time that an object took to fall that distance by using equations derived from Newton's second law of motion, as discussed in "Fundamentals of...

  • How to Connect a DC Motor & a Solar Panel to a Multimeter

    While fiddling with solar energy might be fun and exciting, it can be quite frustrating to not know how much voltage your solar-powered DC motor circuit is producing or how regular the current is....

  • Laser Motion Detector Project

    Lasers can be used for motion detection if they are set up correctly. When most people refer to laser motion detectors, they are actually talking about infrared light. This is a type of radiation...

  • How to Power a 12V DC Device With Solar

    Thanks to the miniaturization of electronics, lots of useful direct-current (DC) devices run on 12 volts of power these days, and it can be to your advantage to wire said devices to run on solar...

  • Solar Battery Charger Projects

  • How to Build a Solar Powered RC Car

    If you're an RC enthusiast who is sick and tired of having a few hours of fun and then needing new batteries for your RC car, why not build one that's solar-powered? You'd be able to scoot around...

  • Advantages & Disadvantages of Centralized Solar Power

  • Difference Between Potential Transformer & Current Transformer

    Many arbitrary ways of naming or labeling transformers apply to either their use, their method of manufacture or both. All transformers change both potential (or voltage) and current, but the more...

  • How to Calculate Cosh Function

    The hyperbolic cosine, or cosh function, is a function of complex numbers--that is, numbers that have the square root of -1 as a component. The function itself is defined as one-half the sum of...

  • How to Calculate Resistor for LED

    LEDs give off light as an electrical current moves through them. The brightness of the LED is determined by the voltage reaching the LED. Too much voltage and the LED will burn brightly but cease...

  • How to Calculate Vectors

    Vectors are arrows with two qualities: direction and length. Physicists define various manipulations to make them useful for representing forces, magnetic fields, fluid motion and other phenomena....

  • The Disadvantages of Desalination

  • How to Calculate Total Case Rate

    Total case rates are calculated over the course of a study or experiment in which a general population of either animals or people are observed with the purpose of seeing how many individual...

  • Oven Drying Method to Measure the Moisture in Foods

    Think of the difference between a grape and a raisin. Grapes not only shrivel when they dry into raisins, but they lose moisture as well. The water in foods significantly increases the weight of...

  • How to Make Nitroglycerin

    How to make high rade explosive nitroglycerin. Please be very very careful. One mistake and you are .|.\.-.æ~

  • How to Understand Magic

    The magic done by magicians is an illusion, it is not real. Magicians use special props or mirrors to do seemingly the impossible and 'magical' things. They often trick you into concentrating on...

  • How to Make Clouds Form

    Clouds are everywhere in the sky and what kid out there doesn't like naming the type and what they look like? Here is a great kids experiment for making clouds form. It is very simple. When air is...

  • How to Make a Model of Our Solar System to Scale

    To fully appreciate the mind-boggling distances separating the planets of our solar system, building a scale model is one of the best projects. Using materials found at your local craft and...

  • How to Make Glow in the Dark Hands

    Making your hands glow in the dark is an interesting trick to do when your child is having a slumber party or on a night when you are sitting in the dark telling ghost stories. Certain substances,...

  • How to Use Sign Charts for Polynomials

    You can use sign charts to solve polynomial inequalities. They do this by helping you keep track of when a function of the polynomial is positive and negative. The most difficult part of using...

  • How to Troubleshoot Solar LED Lamps

    If your LED lantern goes kaput, you might be looking to troubleshoot it on your own rather than bring it to a costly professional--or even worse, buy a new one. Luckily, troubleshooting an LED...

  • How to Understand Resistors and Diodes

    Power supplies, household appliances, audio equipment and communication devices are built with resistors and diodes, as are the most advanced computers, so a knowledge of resistors and diodes can...

  • How to Build a Solar Panel From Scratch

    Experimenting with solar energy can be an expensive process, but you can circumvent the exorbitant costs by building your own solar panels for a fraction of the cost. While mass-produced solar...

More

Copyright © 1999-2010 eHow, Inc. Use of this web site constitutes acceptance of the eHow Terms of Use and Privacy Policy .   en-US † requires javascript

Demand Media