Lumber or timber is a type of wood, processed into beams and planks, a stage in the process of wood production. Lumber is used for structural purposes but has many other uses as well. There are two main types of lumber, it may be surfaced on one or more of its faces. Besides pulpwood, rough lumber is the raw material for furniture-making and other items requiring additional cutting and shaping, it is available in many species hardwoods. Finished lumber is supplied in standard sizes for the construction industry – softwood, from coniferous species, including pine and spruce, hemlock, but some hardwood, for high-grade flooring, it is more made from softwood than hardwoods, 80% of lumber comes from softwood. In the United States milled boards of wood are referred to as lumber. However, in Britain and other Commonwealth nations, the term timber is instead used to describe sawn wood products, like floor boards. In the United States and Canada timber describes standing or felled trees. In Canada, lumber describes cut and surfaced wood.
In the United Kingdom, the word lumber is used in relation to wood and has several other meanings, including unused or unwanted items. Referring to wood, Timber is universally used instead. Remanufactured lumber is the result of secondary or tertiary processing/cutting of milled lumber, it is lumber cut for industrial or wood-packaging use. Lumber is cut by ripsaw or resaw to create dimensions that are not processed by a primary sawmill. Resawing is the splitting of 1-inch through 12-inch hardwood or softwood lumber into two or more thinner pieces of full-length boards. For example, splitting a ten-foot 2×4 into two ten-foot 1×4s is considered resawing. Structural lumber may be produced from recycled plastic and new plastic stock, its introduction has been opposed by the forestry industry. Blending fiberglass in plastic lumber enhances its strength and fire resistance. Plastic fiberglass structural lumber can have a "class 1 flame spread rating of 25 or less, when tested in accordance with ASTM standard E 84," which means it burns slower than all treated wood lumber.
Logs are converted into timber by being hewn, or split. Sawing with a rip saw is the most common method, because sawing allows logs of lower quality, with irregular grain and large knots, to be used and is more economical. There are various types of sawing: Plain sawn – A log sawn through without adjusting the position of the log and the grain runs across the width of the boards. Quarter sawn and rift sawn – These terms have been confused in history but mean lumber sawn so the annual rings are reasonably perpendicular to the sides of the lumber. Boxed heart – The pith remains within the piece with some allowance for exposure. Heart center – the center core of a log. Free of heart center – A side-cut timber without any pith. Free of knots – No knots are present. Dimensional lumber is lumber, cut to standardized width and depth, specified in inches. Carpenters extensively use dimensional lumber in framing wooden buildings. Common sizes include 2×4, 2×6, 4×4; the length of a board is specified separately from the width and depth.
It is thus possible to find 2×4s that are four and twelve feet in length. In Canada and the United States, the standard lengths of lumber are 6, 8, 10, 12, 14, 16, 18, 20, 22 and 24 feet. For wall framing, "stud" or "precut" sizes are available, are used. For an eight-, nine-, or ten-foot ceiling height, studs are available in 92 5⁄8 inches, 104 5⁄8 inches, 116 5⁄8 inches; the term "stud" is used inconsistently to specify length. Under the prescription of the Method of Construction issued by the Southern Song government in the early 12th century, timbers were standardized to eight cross-sectional dimensions. Regardless of the actual dimensions of the timber, the ratio between width and height was maintained at 1:1.5. Units are in Song Dynasty inches. Timber smaller than the 8th class were called "unclassed"; the width of a timber is referred to as one "timber", the dimensions of other structural components were quoted in multiples of "timber". The dimensions of timbers in similar application show a gradual diminution from the Sui Dyansty to the modern era.
The length of a unit of dimensional lumber is limited by the height and girth of the tree it is milled from. In general the maximum length is 24 ft. Engineered wood products, manufactured by binding the strands, fibers, or veneers of wood, together with adhesives, to form composite materials, offer more flexibility and greater structural strength than typical wood building materials. Pre-cut studs save a framer much time, because they are pre-cut by the manufacturer for use in 8-, 9-
United States Congress
The United States Congress is the bicameral legislature of the Federal Government of the United States. The legislature consists of two chambers: the House of the Senate; the Congress meets in the United States Capitol in Washington, D. C.. Both senators and representatives are chosen through direct election, though vacancies in the Senate may be filled by a gubernatorial appointment. Congress has 535 voting members: 100 senators; the House of Representatives has six non-voting members representing Puerto Rico, American Samoa, the Northern Mariana Islands, the U. S. Virgin Islands, the District of Columbia in addition to its 435 voting members. Although they cannot vote in the full house, these members can address the house and vote in congressional committees, introduce legislation; the members of the House of Representatives serve two-year terms representing the people of a single constituency, known as a "district". Congressional districts are apportioned to states by population using the United States Census results, provided that each state has at least one congressional representative.
Each state, regardless of population or size, has two senators. There are 100 senators representing the 50 states; each senator is elected at-large in their state for a six-year term, with terms staggered, so every two years one-third of the Senate is up for election. To be eligible for election, a candidate must be aged at least 25 or 30, have been a citizen of the United States for seven or nine years, be an inhabitant of the state which they represent; the Congress was created by the Constitution of the United States and first met in 1789, replacing in its legislative function the Congress of the Confederation. Although not mandated, in practice since the 19th century, Congress members are affiliated with the Republican Party or with the Democratic Party and only with a third party or independents. Article One of the United States Constitution states, "All legislative Powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives."
The House and Senate are equal partners in the legislative process—legislation cannot be enacted without the consent of both chambers. However, the Constitution grants each chamber some unique powers; the Senate ratifies treaties and approves presidential appointments while the House initiates revenue-raising bills. The House initiates impeachment cases. A two-thirds vote of the Senate is required before an impeached person can be forcibly removed from office; the term Congress can refer to a particular meeting of the legislature. A Congress covers two years; the Congress ends on the third day of January of every odd-numbered year. Members of the Senate are referred to as senators. Scholar and representative Lee H. Hamilton asserted that the "historic mission of Congress has been to maintain freedom" and insisted it was a "driving force in American government" and a "remarkably resilient institution". Congress is the "heart and soul of our democracy", according to this view though legislators achieve the prestige or name recognition of presidents or Supreme Court justices.
One analyst argues that it is not a reactive institution but has played an active role in shaping government policy and is extraordinarily sensitive to public pressure. Several academics described Congress: Congress reflects us in all our strengths and all our weaknesses, it reflects our regional idiosyncrasies, our ethnic and racial diversity, our multitude of professions, our shadings of opinion on everything from the value of war to the war over values. Congress is the government's most representative body... Congress is charged with reconciling our many points of view on the great public policy issues of the day. Congress is changing and is in flux. In recent times, the American south and west have gained House seats according to demographic changes recorded by the census and includes more minorities and women although both groups are still underrepresented. While power balances among the different parts of government continue to change, the internal structure of Congress is important to understand along with its interactions with so-called intermediary institutions such as political parties, civic associations, interest groups, the mass media.
The Congress of the United States serves two distinct purposes that overlap: local representation to the federal government of a congressional district by representatives and a state's at-large representation to the federal government by senators. Most incumbents seek re-election, their historical likelihood of winning subsequent elections exceeds 90 percent; the historical records of the House of Representatives and the Senate are maintained by the Center for Legislative Archives, a part of the National Archives and Records Administration. Congress is directly responsible for the governing of the District of Columbia, the current seat of the federal government; the First Continental Congress was a gathering of representatives from twelve of the thirteen British Colonies in North America. On July 4, 1776, the Second Continental Congress adopted the Declaration of Independence, referring to the new nation as the "United States of America"; the Articles of Confederation in 1781 created the Congress of the Confederation, a
Thomas L. Tidwell was the 17th Chief of the United States Forest Service of the Department of Agriculture, was appointed on July 17, 2009, succeeding Gail Kimbell, he was succeeded by Tony Tooke, sworn in September 1, 2017. Tom Tidwell grew up in Boise and graduated from Washington State University. Tidwell began his Forest Service career on the Boise National Forest in fire, has since worked on eight different national forests, in three regions, he has worked at all levels of the agency in a variety of positions, including District Ranger, Forest Supervisor, Legislative Affairs Specialist in the Washington Office, where he worked on the planning rule, the 2001 roadless rule and the Secure Rural Schools County Payments Act. Tom served as the Deputy Regional Forester for the Pacific Southwest Region with primary responsibility for fire and aviation management, engineering and private forestry and tribal relations. Tidwell served as Forest Supervisor during the 2002 Winter Olympics in Salt Lake City, Utah.
On June 17, 2009, Agriculture Secretary Tom Vilsack announced that Tidwell would serve as the new Chief for the United States Forest Service. "Tom Tidwell's 32 years of experience in our forests and impressive track record of collaboration and problem-solving will help us tackle the great challenges ahead," said Vilsack. Tom is married to Kim, they have one daughter, MacKenzie. Thomas Tidwell biographical profile
Benjamin Harrison was an American politician and lawyer who served as the 23rd president of the United States from 1889 to 1893. He was a grandson of the ninth president, William Henry Harrison, creating the only grandfather–grandson duo to have held the office, he was a great-grandson of Benjamin Harrison V, a founding father. Before ascending to the presidency, Harrison had established himself as a prominent local attorney, Presbyterian church leader, politician in Indianapolis, Indiana. During the American Civil War, he served in the Union Army as a colonel, was confirmed by the U. S. Senate as a brevet brigadier general of volunteers in 1865. Harrison unsuccessfully ran for governor of Indiana in 1876; the Indiana General Assembly elected Harrison to a six-year term in the U. S. Senate, where he served from 1881 to 1887. A Republican, Harrison was elected to the presidency in 1888, defeating the Democratic incumbent, Grover Cleveland. Hallmarks of Harrison's administration included unprecedented economic legislation, including the McKinley Tariff, which imposed historic protective trade rates, the Sherman Antitrust Act.
Harrison facilitated the creation of the national forest reserves through an amendment to the Land Revision Act of 1891. During his administration six western states were admitted to the Union. In addition, Harrison strengthened and modernized the U. S. Navy and conducted an active foreign policy, but his proposals to secure federal education funding as well as voting rights enforcement for African Americans were unsuccessful. Due in large part to surplus revenues from the tariffs, federal spending reached one billion dollars for the first time during his term; the spending issue in part led to the defeat of the Republicans in the 1890 mid-term elections. Cleveland defeated Harrison for re-election in 1892, due to the growing unpopularity of the high tariff and high federal spending. Harrison returned to his law practice in Indianapolis. In 1899 Harrison represented the Republic of Venezuela in their British Guiana boundary dispute against the United Kingdom. Harrison traveled to the court of Paris as part of the case and after a brief stay returned to Indianapolis.
He died at his home in Indianapolis in 1901 of complications from influenza. Although many have praised Harrison's commitment to African Americans' voting rights and historians regard his administration as below-average, rank him in the bottom half among U. S. presidents. Historians, have not questioned Harrison's commitment to personal and official integrity. Benjamin Harrison was born on August 20, 1833, in North Bend, the second of Elizabeth Ramsey and John Scott Harrison's ten children, his paternal ancestors were the Harrison family of Virginia, whose immigrant ancestor, Benjamin Harrison I, arrived in Jamestown, circa 1630 from England. Harrison was of English ancestry, all of his ancestors having emigrated to America during the early colonial period; the future President was a grandson of U. S. President William Henry Harrison and a great-grandson of Benjamin Harrison V, a Virginia planter who signed the Declaration of Independence and succeeded Thomas Jefferson as governor of Virginia.
Harrison was seven years old when his grandfather was elected U. S. president, but he did not attend the inauguration. Although Harrison's family was distinguished, his parents were not wealthy. John Scott Harrison, a two-term U. S. congressman from Ohio, spent much of his farm income on his children's education. Despite the family's modest resources, Harrison's boyhood was enjoyable, much of it spent outdoors fishing or hunting. Benjamin Harrison's early schooling took place in a log cabin near his home, but his parents arranged for a tutor to help him with college preparatory studies. Fourteen-year-old Harrison and his older brother, enrolled in Farmer's College near Cincinnati, Ohio, in 1847, he attended the college for two years and while there met his future wife, Caroline "Carrie" Lavinia Scott, a daughter of John Witherspoon Scott, the school's science professor, a Presbyterian minister. In 1850, Harrison transferred to Miami University in Oxford and graduated in 1852, he joined the Phi Delta Theta fraternity.
He was a member of Delta Chi, a law fraternity which permitted dual membership. Classmates included John Alexander Anderson, who became a six-term U. S. congressman, Whitelaw Reid, Harrison's vice presidential running mate in 1892. At Miami, Harrison was influenced by history and political economy professor Robert Hamilton Bishop. Harrison joined a Presbyterian church at college and, like his mother, became a lifelong Presbyterian. After his college graduation in 1852, Harrison studied law with Judge Bellamy Storer of Cincinnati, but before he completed his studies, he returned to Oxford, Ohio, to marry Caroline Scott on October 20, 1853. Caroline's father, a Presbyterian minister, performed the ceremony; the Harrisons had Russell Benjamin Harrison and Mary "Mamie" Scott Harrison. Harrison and his wife returned to live at The Point, his father's farm in southwestern Ohio, while he finished his law studies. Harrison was admitted to the Ohio bar in early 1854, the same year he sold property that he had inherited after the death of an aunt for $800, used the funds to move with Caroline to Indianapolis, Indiana.
Harrison began practicing law in the office of John H. Ray in 1854 and became a crier for the federal court in Indianapolis, for which he was paid $2.50 per day. He served as a Commissioner for the U. S. Court of Claims. Harrison bec
United States Department of Agriculture
The United States Department of Agriculture known as the Agriculture Department, is the U. S. federal executive department responsible for developing and executing federal laws related to farming and food. It aims to meet the needs of farmers and ranchers, promote agricultural trade and production, work to assure food safety, protect natural resources, foster rural communities and end hunger in the United States and internationally. 80% of the USDA's $141 billion budget goes to the Food and Nutrition Service program. The largest component of the FNS budget is the Supplemental Nutrition Assistance Program, the cornerstone of USDA's nutrition assistance; the current Secretary of Agriculture is Sonny Perdue. Many of the programs concerned with the distribution of food and nutrition to people of America and providing nourishment as well as nutrition education to those in need are run and operated under the USDA Food and Nutrition Service. Activities in this program include the Supplemental Nutrition Assistance Program, which provides healthy food to over 40 million low-income and homeless people each month.
USDA is a member of the United States Interagency Council on Homelessness, where it is committed to working with other agencies to ensure these mainstream benefits are accessed by those experiencing homelessness. The USDA is concerned with assisting farmers and food producers with the sale of crops and food on both the domestic and world markets, it plays a role in overseas aid programs by providing surplus foods to developing countries. This aid can go through USAID, foreign governments, international bodies such as World Food Program, or approved nonprofits; the Agricultural Act of 1949, section 416 and Agricultural Trade Development and Assistance Act of 1954 known as Food for Peace, provides the legal basis of such actions. The USDA is a partner of the World Cocoa Foundation. Early in its history, the economy of the United States was agrarian. Officials in the federal government had long sought new and improved varieties of seeds and animals for import into the United States. In 1837 Henry Leavitt Ellsworth, a Yale-educated attorney interested in improving agriculture, became Commissioner of Patents, a position within the Department of State.
He began collecting and distributing new varieties of seeds and plants through members of the Congress and agricultural societies. In 1839, Congress established the Agricultural Division within the Patent Office and allotted $1,000 for "the collection of agricultural statistics and other agricultural purposes." Ellsworth's interest in aiding agriculture was evident in his annual reports that called for a public depository to preserve and distribute the new seeds and plants, a clerk to collect agricultural statistics, statewide reports about crops in different regions, the application of chemistry to agriculture. Ellsworth was called the "Father of the Department of Agriculture."In 1849, the Patent Office was transferred to the newly created Department of the Interior. In the ensuing years, agitation for a separate bureau of agriculture within the department or a separate department devoted to agriculture kept recurring. On May 15, 1862, Abraham Lincoln established the independent Department of Agriculture to be headed by a commissioner without Cabinet status, the agriculturalist Isaac Newton was appointed to be the first such commissioner.
Lincoln called it the "people's department." In 1868, the Department moved into the new Department of Agriculture Building in Washington, D. C. designed by famed DC architect Adolf Cluss. Located on Reservation No.2 on the National Mall between 12th Street and 14th SW, the Department had offices for its staff and the entire width of the Mall up to B Street NW to plant and experiment with plants. In the 1880s, varied advocacy groups were lobbying for Cabinet representation. Business interests sought a Department of Commerce and Industry, farmers tried to raise the Department of Agriculture to Cabinet rank. In 1887, the House of Representatives and Senate passed bills giving Cabinet status to the Department of Agriculture and Labor, but the bill was defeated in conference committee after farm interests objected to the addition of labor. On February 9, 1889, President Grover Cleveland signed a bill into law elevating the Department of Agriculture to Cabinet level. In 1887, the Hatch Act provided for the federal funding of agricultural experiment stations in each state.
The Smith-Lever Act of 1914 funded cooperative extension services in each state to teach agriculture, home economics, other subjects to the public. With these and similar provisions, the USDA reached out to every county of every state. During the Great Depression, farming remained a common way of life for millions of Americans; the Department of Agriculture's Bureau of Home Economics, established in 1923, published shopping advice and recipes to stretch family budgets and make food go farther. USDA helped ensure that food continued to be produced and distributed to those who needed it, assisted with loans for small landowners, contributed to the education of the rural youth, it was revealed on August 27th, 2018 that the U. S. Department of Agriculture would be providing U. S. farmers with a farm aid package, which will total $4.7 billion in direct payments to American farmers. This package is meant to offset the losses farmers are expected to incur from retaliatory tariffs placed on American exports during the Trump tariffs.
The Department of Agriculture was authorized a budget for Fiscal Year 2015 of $139.7 billion. The budget authorization is broken down as follows: Agricultural Stabilization and Conservation Service Animal Damage Control (
Pacific Railroad Acts
The Pacific Railroad Acts were a series of acts of Congress that promoted the construction of a "transcontinental railroad" in the United States through authorizing the issuance of government bonds and the grants of land to railroad companies. Although the War Department under Secretary of War Jefferson Davis was authorized by the Congress in 1853 to conduct surveys of five different potential transcontinental routes from the Mississippi ranging from north to south and submitted a massive twelve volume report to Congress with the results in early 1855, no route or bill could be agreed upon and passed authorizing the Government's financial support and land grants until the secession of the southern states removed their opposition to a central route; the Pacific Railroad Act of 1862 was the original act. Some of its provisions were subsequently modified, expanded, or repealed by four additional amending Acts: The Pacific Railroad Act of 1863, Pacific Railroad Act of 1864, Pacific Railroad Act of 1865, Pacific Railroad Act of 1866.
The Pacific Railroad Act of 1862 began federal government grant of lands directly to corporations. The original Act's long title was An Act to aid in the construction of a railroad and telegraph line from the Missouri river to the Pacific ocean, to secure to the government the use of the same for postal and other purposes, it was based on a proposed bill reported six years earlier on August 16, 1856, to the 34th Congress by the Select Committee on the Pacific Railroad and Telegraph. Signed into law by President Abraham Lincoln on July 1, 1862, the 1862 Act authorized extensive land grants in the Western United States and the issuance of 30-year government bonds to the Union Pacific Railroad and Central Pacific Railroad companies in order to construct a continuous transcontinental railroad between the eastern side of the Missouri River at Council Bluffs and the navigable waters of the Sacramento River in Sacramento, California. Section 2 of the Act granted each Company contiguous rights of way for their rail lines as well as all public lands within 500 feet on either side of the track.
Section 3 granted an additional 10 square miles of public land for every mile of grade except where railroads ran through cities or crossed rivers. The method of apportioning these additional land grants was specified in the Act as being in the form of "five alternate sections per mile on each side of said railroad, on the line thereof, within the limits of ten miles on each side" which thus provided the companies with a total of 6,400 acres for each mile of their railroad; the U. S. Government Pacific Railroad Bonds were authorized by Section 5 to be issued to the companies at the rate of $16,000 per mile of tracked grade completed west of the designated base of the Sierra Nevadas and east of the designated base of the Rocky Mountains. Section 11 of the Act provided that the issuance of bonds "shall be treble the number per mile" for tracked grade completed over and within the two mountain ranges, doubled per mile of completed grade laid between the two mountain rangesThe 30-year U. S. government bonds authorized by the act would be issued and backed by the U.
S. government, which would provide the capital raised to the railroad companies upon completion of sections of the railroads in exchange for a lien on that section. The liens covered the railroads and all their fixtures, all the loans were repaid in full by the companies as and when they became due. Section 10 of the 1864 amending Act additionally authorized the two companies to issue their own "First Mortgage Bonds" in total amounts up to that of the bonds issued by the United States, that such company issued securities would have priority over the original Government Bonds. From 1850 to 1871, the railroads received more than 175 million acres of public land – an area more than one tenth of the whole United States and larger in area than Texas. Railroad expansion provided new avenues of migration into the American interior; the railroads sold portions of their land to arriving settlers at a handsome profit. Lands closest to the tracks drew the highest prices, because farmers and ranchers wanted to locate near railway stations.
The act of March 3, 1863 was: AN ACT to establish the gauge of the Pacific railroad and its branches. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That the gauge of the Pacific railroad and its branches throughout their whole extent, from the Pacific coast to the Missouri river, shall be, hereby is, established at four feet eight and one-half inches; this act set the gauge to be used by the railroads at four feet and eight and one-half inches, a gauge, used by George Stephenson in England for the Liverpool and Manchester Railway and was popular with railroads in the Northeastern states. Due in part to the 1863 Act the gauge would come to be adopted in the United States and is known as standard gauge. A common gauge choice allowed easy transfer of cars between different railroad companies and facilitates trackage rights between companies. First Transcontinental Railroad Central Pacific Railroad Un
An oil is any nonpolar chemical substance, a viscous liquid at ambient temperatures and is both hydrophobic and lipophilic. Oils have a high carbon and hydrogen content and are flammable and surface active; the general definition of oil includes classes of chemical compounds that may be otherwise unrelated in structure and uses. Oils may be animal, vegetable, or petrochemical in origin, may be volatile or non-volatile, they are used for food, medical purposes and the manufacture of many types of paints and other materials. Specially prepared oils are used in some religious rituals as purifying agents. First attested in English 1176, the word oil comes from Old French oile, from Latin oleum, which in turn comes from the Greek ἔλαιον, "olive oil, oil" and that from ἐλαία, "olive tree", "olive fruit"; the earliest attested forms of the word are the Mycenaean Greek, e-ra-wo and, e-rai-wo, written in the Linear B syllabic script. Organic oils are produced in remarkable diversity by plants and other organisms through natural metabolic processes.
Lipid is the scientific term for the fatty acids and similar chemicals found in the oils produced by living things, while oil refers to an overall mixture of chemicals. Organic oils may contain chemicals other than lipids, including proteins and alkaloids. Lipids can be classified by the way that they are made by an organism, their chemical structure and their limited solubility in water compared to oils, they have a high carbon and hydrogen content and are lacking in oxygen compared to other organic compounds and minerals. Crude oil, or petroleum, its refined components, collectively termed petrochemicals, are crucial resources in the modern economy. Crude oil originates from ancient fossilized organic materials, such as zooplankton and algae, which geochemical processes convert into oil; the name "mineral oil" is a misnomer, in that minerals are not the source of the oil—ancient plants and animals are. Mineral oil is organic. However, it is classified as "mineral oil" instead of as "organic oil" because its organic origin is remote, because it is obtained in the vicinity of rocks, underground traps, sands.
Mineral oil refers to several specific distillates of crude oil. Several edible vegetable and animal oils, fats, are used for various purposes in cooking and food preparation. In particular, many foods are fried in oil much hotter than boiling water. Oils are used for flavoring and for modifying the texture of foods. Cooking oils are derived either from animal fat, as butter and other types, or plant oils from the olive, maize and many other species. Oils are applied to hair to give it a lustrous look, to prevent tangles and roughness and to stabilize the hair to promote growth. See hair conditioner. Oil has been used throughout history as a religious medium, it is considered a spiritually purifying agent and is used for anointing purposes. As a particular example, holy anointing oil has been an important ritual liquid for Judaism and Christianity. Color pigments are suspended in oil, making it suitable as a supporting medium for paints; the oldest known extant oil paintings date from 650 AD. Oils are used for instance in electric transformers.
Heat transfer oils are used both as coolants, for heating and in other applications of heat transfer. Given that they are non-polar, oils do not adhere to other substances; this makes them useful as lubricants for various engineering purposes. Mineral oils are more used as machine lubricants than biological oils are. Whale oil is preferred for lubricating clocks, because it does not evaporate, leaving dust, although its use was banned in the USA in 1980, it is a long-running myth that spermaceti from whales has still been used in NASA projects such as the Hubble Telescope and the Voyager probe because of its low freezing temperature. Spermaceti is not an oil, but a mixture of wax esters, there is no evidence that NASA has used whale oil; some oils burn in liquid or aerosol form, generating light, heat which can be used directly or converted into other forms of energy such as electricity or mechanical work. To obtain many fuel oils, crude oil is pumped from the ground and is shipped via oil tanker or a pipeline to an oil refinery.
There, it is converted from crude oil to diesel fuel, fuel oils, jet fuel, kerosene and liquefied petroleum gas. A 42-US-gallon barrel of crude oil produces 10 US gallons of diesel, 4 US gallons of jet fuel, 19 US gallons of gasoline, 7 US gallons of other products, 3 US gallons split between heavy fuel oil and liquified petroleum gases, 2 US gallons of heating oil; the total production of a barrel of crude into various products results in an increase to 45 US gallons. Not all oils used as fuels are mineral oils, see biodiesel and vegetable oil fuel. In the 18th and 19th cent