Litre
The litre (SI spelling) or liter (American spelling) (symbols L or l, sometimes abbreviated ltr) is an SI accepted metric system unit of volume equal to 1 cubic decimetre (dm3--->), 1,000 cubic centimetres (cm3--->) or 1/1,000 cubic metre. A cubic decimetre (or litre) occupies a volume of 10 cm×10 cm×10 cm (see figure) and is thus equal to one-thousandth of a cubic metre. The original French metric system used the litre as a base unit. The word litre is derived from an older French unit, the litron, whose name came from Greek — where it was a unit of weight, not volume — via Latin, and which equalled approximately 0.831 litres. The litre was also used in several subsequent versions of the metric system and is accepted for use with the SI, although not an SI unit — the SI unit of volume is the cubic metre (m3--->)
[...More Info...]       [...Related Items...]

Litter
Litter consists of waste products that have been disposed improperly, without consent, at an inappropriate location. Litter can also be used as a verb. To litter means to drop and leave objects, often man-made, such as aluminum cans, cardboard boxes or plastic bottles on the ground and leave them there indefinitely or for others to dispose of as opposed to disposing of them properly. Large and hazardous items of rubbish such as tires, electrical appliances, electronics, batteries and large industrial containers are sometimes dumped in isolated locations, such as national forests and other public land. It is a human impact on the environment and remains a serious environmental issue in many countries. Litter can exist in the environment for long periods of time before degrading and be transported large distances into the world's oceans
[...More Info...]       [...Related Items...]

Standard Pressure
Standard conditions for temperature and pressure are standard sets of conditions for experimental measurements to be established to allow comparisons to be made between different sets of data. The most used standards are those of the International Union of Pure and Applied Chemistry (IUPAC) and the National Institute of Standards and Technology (NIST), although these are not universally accepted standards
[...More Info...]       [...Related Items...]

Isotope
Isotopes are variants of a particular chemical element which differ in neutron number. All isotopes of a given element have the same number of protons in each atom. The term isotope is formed from the Greek roots isos (ἴσος "equal") and topos (τόπος "place"), meaning "the same place"; thus, the meaning behind the name is that different isotopes of a single element occupy the same position on the periodic table. The number of protons within the atom's nucleus is called atomic number and is equal to the number of electrons in the neutral (non-ionized) atom. Each atomic number identifies a specific element, but not the isotope; an atom of a given element may have a wide range in its number of neutrons
[...More Info...]       [...Related Items...]

Torr
The torr (symbol: Torr) is a unit of pressure based on an absolute scale, now defined as exactly 1/760 of a standard atmosphere (101.325 kPa). Thus one torr is exactly 7005101325000000000♠101325/760 pascals (≈ 133.32 Pa). Historically, one torr was intended to be the same as one "millimeter of mercury". However, subsequent redefinitions of the two units made them slightly different (by less than 6993150000000000000♠0.000015%)
[...More Info...]       [...Related Items...]

NIST
The National Institute of Standards and Technology (NIST) is a measurement standards laboratory, and a non-regulatory agency of the United States Department of Commerce
[...More Info...]       [...Related Items...]

Quart
The quart (abbreviation qt.) is an English unit of volume equal to a quarter gallon. It is divided into two pints or four cups. Historically, the exact size of the quart has varied with the different values of gallons over time and in reference to different commodities. Presently, three kinds of quarts remain in use: the liquid quart and dry quart of the US customary system and the imperial quart of the British imperial system
[...More Info...]       [...Related Items...]

Cubic Foot
The cubic foot (symbol ft3--->) is an imperial and US customary (non-metric) unit of volume, used in the United States, and partially in Canada, and the United Kingdom. It is defined as the volume of a cube with sides of one foot (0.3048 m) in length
[...More Info...]       [...Related Items...]

Imperial Unit
The system of imperial units or the imperial system (also known as British Imperial or Exchequer Standards of 1825) is the system of units first defined in the British Weights and Measures Act of 1824, which was later refined and reduced. The Imperial units replaced the Winchester Standards, which were in effect from 1588 to 1825. The system came into official use across the British Empire. By the late 20th century, most nations of the former empire had officially adopted the metric system as their main system of measurement, although some imperial units are still used in the United Kingdom, Canada and other countries formerly part of the British Empire
[...More Info...]       [...Related Items...]

Mnemonic
A mnemonic (/nəˈmɒnɪk/, the first "m" is silent) device, or memory device, is any learning technique that aids information retention or retrieval (remembering) in the human memory. Mnemonics make use of elaborative encoding, retrieval cues, and imagery as specific tools to encode any given information in a way that allows for efficient storage and retrieval. Mnemonics aid original information in becoming associated with something more accessible or meaningful—which, in turn, provides better retention of the information. Commonly encountered mnemonics are often used for lists and in auditory form, such as short poems, acronyms, or memorable phrases, but mnemonics can also be used for other types of information and in visual or kinesthetic forms
[...More Info...]       [...Related Items...]

Arabic Digit
Arabic numerals, also called Hindu–Arabic numerals, are the ten digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, based on the Hindu–Arabic numeral system, the most common system for the symbolic representation of numbers in the world today. In this numeral system, a sequence of digits such as "975" is read as a single number, using the position of the digit in the sequence to interpret its value. They are descended from the Hindu-Arabic numeral system developed by Indian mathematicians around AD 500. The system was adopted by Arabic mathematicians in Baghdad and passed on to the Arabs farther west
[...More Info...]       [...Related Items...]

Dry Measure
Dry measures are units of volume used in ancient measuring systems and still used in the US customary system to measure bulk commodities that are not fluids and that were typically shipped and sold in standardized containers such as barrels. They have been replaced by the same units used for measuring liquids in the imperial system and the metric system. They were or are typically used in agriculture, agronomy, and commodity markets to measure grain, dried beans, dried and fresh fruit, clams, and crabs. They were formerly used for many other foods, such as salt pork and salted fish, and for industrial commodities such as coal, cement, and lime. The names are often the same as for the units used to measure liquids, despite representing different volumes, which is confusing for most people even in countries that still use them
[...More Info...]       [...Related Items...]

Regional Handwriting Variation
Although people in many parts of the world share common alphabets and numeral systems (versions of the Latin writing system are used throughout the Americas, Australia, and much of Europe and Africa; the Hindu-Arabic numerals are nearly universal), styles of handwritten letterforms vary between individu
[...More Info...]       [...Related Items...]

Typewriter
A typewriter is a mechanical or electromechanical machine for writing characters similar to those produced by printer's movable type. Typically, a typewriter has an array of keys, each of which causes a different single character to be produced on the paper by causing an inked ribbon to be struck against the paper by a type element similar to the sorts used in movable type letterpress printing. Commonly a separate type element (called a typebar) corresponds to each key, but the mechanism may also use a single type element (such as a typeball) with a different portion of it used for each possible character
[...More Info...]       [...Related Items...]

United States
The United States of America (USA), commonly known as the United States (U.S. or US) or America, is a country comprising 50 states, a federal district, five major self-governing territories, and various possessions. At 3.8 million square miles (9.8 million km2--->), it is the world's third or fourth-largest country by total area and is slightly smaller than the entire continent of Europe. Most of the country is located in central North America between Canada and Mexico. With an estimated population of over 328 million, the U.S. is the third most populous country. The capital is Washington, D.C., and the most populous city is New York City. Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago. European colonization began in the 16th century
[...More Info...]       [...Related Items...]