Dear EarthTalk: I heard that using a solar powered water heater in my home would reduce my CO2 emissions significantly. Is this true? And what are the costs? -- Anthony Gerst, Wapello, IA Conventional Water Heaters Use Energy According to mechanical engineers at the University of Wisconsin's Solar Energy Laboratory, an average four-person household with an electric water heater needs about 6,400 kilowatt hours of electricity per year to heat their water.
The PHP document root is the folder where a PHP script is running. When installing a script, web developers often need to know the document root. Although many pages scripted with PHP run on an Apache server, some run under Microsoft IIS on Windows. Apache includes an environment variable called DOCUMENT_ROOT, but IIS doesn't.
The Mediterranean Sea is a large sea or body of water that is located between Europe, northern Africa, and southwestern Asia. Its total area is 970,000 square miles (2,500,000 sq km) and its greatest depth is located off the coast of Greece at around 16,800 feet (5,121 m) deep. The average depth of the sea, however, is about 4,900 feet (1,500 m).
Mood rings are rings which have a stone or band that changes color in response to temperature. Have you ever wondered how they work or what is inside one of them? Here's a look at the liquid crystals found in mood rings and how they change color. What Are Mood Rings Made Of? A mood ring is sort of a sandwich.
Abraham Maslow was a psychologist and the founder of the school of thought known as humanistic psychology. Perhaps best remembered for his famous needs hierarchy, he believed in the basic goodness of people and was interested in topics such as peak experiences, positivity, and human potential. In addition to his work as a teacher and researcher, Maslow also published several popular works including Toward a Psychology of Being and Motivation and Personality .
Benjamin Bloom was a U.S. psychiatrist who made several significant contributions to education, mastery learning, and talent development. Born in 1913 in Lansford, Pennsylvania, he exhibited a passion for reading and research from an early age. Bloom attended Pennsylvania State University and earned a bachelor's degree and a master's degree, then he became a member of the University of Chicago's Board of Examinations in 1940.
Do you like magnets? Science fair projects can examine magnetism or electromagnets. Here are some magnetism science fair project ideas. Magnetism Science Fair Project Ideas Make your own ferrofluid or liquid magnets. Is plant growth affected by the presence of an electromagnetic field? Is seed germination affected by a magnetic field?
One of the appeals of Robert Frost's poetry is that he writes in a way that everyone can understand. His colloquial tone captures everyday life in poetic verse and "The Pasture" is a perfect example. A Friendly Invitation “The Pasture” was originally published as the introductory poem in Robert Frost's first American collection, North of Boston.
Pronunciation: BOOST-ing Etymology: Perhaps from dialectal boostering , "bustling, active" Definition: An adverbial construction used to support a claim or express a viewpoint more assertively and convincingly. Contrast with verbal hedge. "Hedging and boosting devices," says Mary Talbot, "are modal elements; that is, elements that modify the force of a statement, either weakening it or intensifying" ( Language and Gender , 2010).
The first step in writing an excellent book report is reading the book and marking interesting phrases or notable features in the margins. You should use active reading skills to retain the most from the text. Your book report should contain all of the following, in addition to the plot summary. Title and Publication The Three Musketeers was written in 1844.
John Alden Jr. (1626 or 1627 - March 25, 1702) was a soldier and sailor accused of witchcraft on a visit to the town of Salem and imprisoned in the 1692 Salem witch trials; he escaped from jail and was later exonerated. John Alden Jr.'s Parents and Wife Father: John Alden Sr., a crew member on the Mayflower when it sailed to Plymouth Colony; he decided to stay in the new world.
Cultural evolution as a theory in anthropology was developed in the 19th century, and it was an outgrowth of Darwinian evolution. Cultural evolution presumes that over time, cultural change such as the rise of social inequalities or emergence of agriculture occurs as a result of humans adapting to some noncultural stimulus, such as climate change or population growth.
There are two ways to say "two" in Mandarin Chinese: 二 (èr) or 兩 (traditional form) / 两 (simplified form) (liǎng). These characters cannot be used interchangeably so it's important to know when it is appropriate to use which form. Here is a guide to understanding which scenario calls for what kind of "two.
Pension plans are one of the key methods to successfully saving for retirement in the United States, and though the government does not require businesses to provide such plans to its employees, it does offer generous tax breaks to companies that establish and contribute to pensions for their employees.
Lucy Burns played a key role in the militant wing of the American suffrage movement and in the final win of the 19th Amendment. Occupation: Activist, teacher, scholar Dates: July 28, 1879 - December 22, 1966 Background, Family Father: Edward Burns Siblings: Fourth of seven Education Parker Collegiate Institute, formerly Brooklyn Female Academy, a preparatory school in Brooklyn Vassar College, graduated 1902 Graduate work at Yale University, Universities of Bonn, Berlin, and Oxford More About Lucy Burns Lucy Burns was born in Brooklyn, New York, in 1879.
For such a famous and influential dinosaur-It's been featured in countless movies, most notably the first installment of Jurassic Park- Brachiosaurus is known from surprisingly limited fossil remains. This isn't an unusual situation for sauropods, the skeletons of which are often disarticulated (read: picked apart by scavengers and scattered to the winds by bad weather) after their deaths, and more often than not are found to be missing their skulls.
You've probably noticed that when an especially big news story happens, newspapers, and news websites don't just produce one story about it but often many different stories, depending on the magnitude of the event. These different kinds of stories are called mainbars and sidebars. What Is a Mainbar?
The French verb rendre literally means "to return" and is also used in many idiomatic expressions. Learn how to give thanks, glorify, comply with orders, and more with this list of expressions with rendre . Possible meanings of rendre to give back, return to administer (justice) to hand in (homework) to pay off (e.
Publius Servilius Casca Longus, Roman tribune in 43 B.C., is the name of the assassin who first struck Julius Caesar on the Ides of March, in 44 B.C. The symbol to strike came when Lucius Tilius Cimber grabbed Caesar's toga and pulled it from his neck. A nervous Casca then stabbed the dictator, but only managed to graze him around the neck or shoulder.
Name: Ichthyosaurus (Greek for "fish lizard") Pronounced : ICK-thee-oh-SORE-us Habitat: Oceans worldwide Historical Period: Early Jurassic (200-190 million years ago) Size and Weight: About six feet long and 200 pounds Diet: Fish Distinguishing Characteristics: Streamlined body; pointed snout; fishlike tail About Ichthyosaurus You might be forgiven for mistaking Ichthyosaurus for the Jurassic equivalent of a bluefin tuna: this marine reptile had an amazingly fishlike shape with a streamlined body, a finlike structure on its back, and a hydrodynamic, two-pronged tail.
The Japanese "r" is different from the English "r". The sound is sort of between the English "r" and "l". To make "r" sound, start to say "l", but make your tongue stop short of the roof of your mouth, almost in the English "d" position. It is more like the Spanish "r". The Japanese have trouble to pronounce and tell the difference between the English "r" and "l' because these sounds don't exist in Japanese.