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To find these remains, archaeologists often have to dig deep in the ground. This is called fieldwork. When things are found, or even when nothing is found, the results of the fieldwork are taken back to the place where the archaeologist is based, perhaps a University or museum. Every piece of information is written dow... |
Sometimes archaeologists find the bones of dead people and the things they used, or the houses they lived in. Archaeologists think it is important to understand the past, because so many people use the past to know where they come from. |
Archaeologists have many different 'fields of interest', which means they do not all study the same things. Some study Ancient Egypt and are called Egyptologists; others study Ancient Greece, or the Vikings. Archaeologists study every civilization that is known, especially the ones where there is no history to read. Th... |
Stonehenge, in England is a famous archaeological site, or place. Other famous sites include Angkor Wat, Machu Picchu, and Great Zimbabwe. In many countries, governments and other groups of people protect important sites so that they will not be destroyed and so that visitors can always come and see them. |
Sometimes archaeological sites are found when foundations are dug for new buildings. Archaeologists have to work quickly when this happens, because people building are always in a hurry. Quite often as soon as the archaeologists have finished their work, the remains that they have found will be covered over, unless the... |
Application |
The word application has several uses. |
Medicine. |
In medicine, application means putting some drug or ointment usually on the skin where it is absorbed into the human body. |
Computers. |
When dealing with computers, an application is a type of computer program. At the direction of some user, perhaps set up once and executed many times, this performs a well-defined mathematical or communications function, or retrieves information, or displays or edits a document. How well this works depends not only on ... |
Physically, the bits making up the application can be on the boot device or a data device, or a device of their own. Usually, some basic applications like a text editor, file browser and telnet do go on the boot device to be sure that they are always available even if only the boot is accessed. |
If the bits are on a non-boot device, they may not always be found when required. In the Microsoft Windows operating system, the user may be asked to find the application that is used to run a specific file. |
Common types of applications available free of charge include web browsers, email programs, media players, and instant messaging software. |
Business. |
In business or government, an application is a (usually paper) form filled out and handed in by a person seeking a privilege from a state or company, such as work, credit, some type of license or permit, or a place to live. |
Engineering. |
At work, generally engineering, when dealing with certain materials or objects, an "application" is a purpose that material or object can be used for. Wood and steel have many applications. |
Animalia |
Animalia is the name of the animal kingdom. It is a kingdom which contains all animals. Animals are living things which do not make use of light to get energy and building materials (like plants do) to grow. They eat plants or other animals. Most higher animals can also move around, which is another difference with pla... |
Grouping animals. |
When scientists look at animals, they find things that certain animals have in common. They can then group the animals, according to some of these things. |
One classification is that some animals have a backbone, and others do not. The animals with a backbone are called vertebrates, those without one are called invertebrates. |
Examples of invertebrates are bees, dragonflies, jellyfish, etc. |
The problem with this classification though is that most animals are invertebrates. Therefore, other classifications are used more often, today. The vertebrate phylum is more commonly known as chordata. There are many other phylums, and every other one of them contain invertebrates. |
Animal |
Animals are living things. Animals are not plants so they can't make their own food or energy by themselves. Animals have to eat other living things (animals, plants, fungi, etc.) to get energy to live. Many animals live in this world. Some are big and some are small. Some live in water, others live on the ground and s... |
Some animals eat only plants; they are called herbivores. Other animals eat only meat and are called carnivores. Animals that eat both plants and meat are called omnivores. Animals are divided into groups; see animalia. Their mode of nutrition is known as heterotrophic nutrition because they eat other living organisms ... |
There are animals living in solitary and groups. Examples of animals living in solitary are tigers, rhinoceros, cheetahs and more. Examples of animals living in groups are coyotes, bees, monkeys and more. Animals living in solitary do not have to share food with each other. Animals living in groups have better protecti... |
The animal kingdom is very diverse. There are many types of animals. But, the common animals you know are only about 3% of the animal kingdom. There are many other animals, such as insects and sponges! Animals can mainly be divided into two main groups, the invertebrates, and the vertebrates. The vertebrates are animal... |
Acceleration |
Acceleration is a measure of how fast velocity changes. Acceleration is the change of velocity divided by the change of time. Acceleration is a vector, and therefore includes both a size and a direction. |
Finding acceleration. |
Sometimes the change in velocity formula_7 is written as Δformula_8. Sometimes the change in time formula_9 is written as Δt. |
Units of measurement. |
Acceleration has its own units of measurement. For example, if velocity is measured in meters per second, and if time is measured in seconds, then acceleration is measured in meters per second squared (m/s2). |
Other words. |
Acceleration can be positive or negative. Positive acceleration is called acceleration, or speeding up. Negative acceleration is called deceleration, or slowing down. |
Newton's second law of motion. |
There are rules for how things move. These rules are called "laws of motion". Isaac Newton is the scientist who made the main laws of motion. |
According to Newton's Second Law of Motion, acceleration formula_10 is connected to force formula_11, and mass formula_12. |
D'Alembert have also proven that "F-ma=0 That means whatever may be the force acting on a body same amount of deaccelerating force is acting in it. |
Acceleration is part of physics. Using calculus, acceleration is the derivative, or rate of change, of velocity. The force something needs to accelerate an object depends on the object's mass: the amount of "stuff" the object is made from. |
Basic English |
Basic English is a made-up language written by Charles Kay Ogden. The idea of Basic English is to use easy words to explain harder thoughts. |
Basic English ("British American Scientific International Commercial") has 850 basic words. From the 850 words, 600 are names of things. Most of the words can be learned using pictures. 150 are words to describe things (adjectives) and to describe verbs (adverbs). The last 100 words are verbs and conjunctions. Verbs ar... |
Rules of word use. |
The word use of Basic English is like full English, but the rules are much simpler, and there are fewer exceptions. Not all meanings of each word are allowed. |
Ogden's rules of grammar for Basic English help people use the 850 words to talk about things and events in a normal way. |
Black pudding |
Black pudding is an English name for blood sausage. It is food made by cooking down the blood of any mammal (usually pigs or cattle) with meat, fat or filler until it is thick enough to congeal (become firm or solid) when cooled. |
Types of Black pudding. |
In England blood sausage is called "Black Pudding". The ingredients include pig's blood, suet, bread, barley and oatmeal. The most common kind of German "blutwurst" is made from fatty pork meat, beef blood and filler such as barley. Though already cooked and "ready to eat" it is usually served warm. |
Other kinds of blood sausage include "boudin noir" (France), "boudin rouge" (Creole and Cajun) and "morcilla" (Spain). |
History. |
A legend says that blood sausage was invented in a bet between two Bavarian butchers drunk on the alcoholic drink absinthe during the 14th century. Homer's |
"Odyssey" from Ancient Greece says that "As when a man besides a great fire has filled a sausage with fat and blood and turns it this way and that and is very eager to get it quickly roasted...". |
Boot device |
A boot device makes a computer work. It is named after a boot which fits on the foot. The word bootstrap is also closely related, and means, to use something simpler to get something more complex to make itself work better. |
Devices that can boot a computer are usually boot disks or boot drives |
(normally a hard drive, but can be a floppy disk or a CD). Some network computers use "boot chips" that get the operating system over a network. Web phones also use such chips to identify the user to the cell network. Boot card standards may let many users boot kiosk computers with full privacy and access to all applic... |
Some people refer to the boot device as just a boot and non-boot devices as data devices, although it is not the computer but the operating system that cares about the difference between these. |
Origin. |
The boot in boot device is the same as booting (or starting up). This is short for bootstrapping, or to start with simple stuff and make complex stuff out of it. |
Boot |
A boot is a type of footwear that protects the foot and ankle. Boots are higher and larger than shoes and sandals. Some boots are high enough to protect the calves (lower part of the leg) as well. Some boots are held on with "bootstraps" or "bootlaces". Some also have spats or "gaiters" to keep water out. Most have a v... |
Other meanings. |
People in English-speaking countries refer to boots in a figurative or joking manner when they tell someone "to lift yourself up by your own bootstraps". This is a joke because it is impossible for someone to lift themselves up by their own bootstraps. What the person is really saying is "figure out your problem yourse... |
As well, people sometimes use the term to bootstrap. This is an idiom meaning "to use something simpler to get something more complex to make itself work better." The word "boot" is also used to describe how a computer starts up when a person presses the "on" button. |
Another term "To boot" is an idiom meaning also. For example, people say "he had a beer, and a whiskey to boot." This means that the person had a beer, and also had a glass of whiskey. Another slang use of the word "boot" is to say "Fred got the boot from the company." This means that Fred got fired from the company. |
Bankrupt |
Anything that does not have enough money to pay all of its debt is insolvent. If it applies for protection by law it may then be bankrupt. |
In many countries a company or business can "file for bankruptcy protection" so that creditors cannot destroy all of the physical capital and goodwill by breaking it apart and moving it away. All this provides is more time to work out a new deal between the owners and the people the business owes money. |
An individual person who owes debt and cannot pay it can also "declare bankruptcy". That person will lose all but some basic things they own, but all the debt will go away. Normally they cannot easily borrow money again for years. |
Very often, a creditor threatens a debtor with debt slavery, if the debtor does not know that they have a right to go bankrupt. This is a human rights problem in very many countries. |
Breakfast sausage |
Breakfast sausage is a type of fresh pork sausage made from seasoned ground meat mixed with bread crumbs. Breakfast sausage has a blander flavor than many other types of sausage, such as Polish or Italian-style sausages. |
Using breakfast sausages. |
Breakfast sausages are not cured or smoked like other types of sausages, which means that they have to be cooked soon after they are purchased (unless they are frozen). Uncooked sausages should be stored in the refrigerator or the freezer. Individuals handling them should wash their hands in hot soapy water, because un... |
They are usually fried or grilled in a pan until they are browned and served at breakfast, often with cooked eggs, pancakes, and toasted bread. Breakfast sausages are also used in other dishes, such as "toads in the hole" a cooked egg dish. |
Types of breakfast sausages. |
Different types made from pork and beef mixtures as well as poultry can now be found. There are also vegetarian types that use textured vegetable protein in place of meat. Breakfast sausages are available in patties or slices from a large roll, or in weiner-like links of different lengths and thickness. |
Beekeeping |
Beekeeping or apiculture is the farming of honeybees. |
Uses. |
The keeping of bees is usually, and has been in the past, for honey. Now it is increasingly used for crop pollination and other products. These are wax and propolis. Queen bees do not control their hives; they lay eggs they are known as the "egg layers" of the hive. They are bigger than other types of bees. |
Types of beekeeping. |
The largest beekeeping operations are agricultural businesses that are operated for profit. Some people also have small beekeeping operations that they do as a hobby. |
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