When a guitar string is plucked, for example, a stationary wave is formed. This happens because on releasing the string, two progressive waves move down the string in opposite directions. When they reach the point where the string is tied down, they cannot move beyond this boundary. At the boundary, the wave is reflected and travels back in the opposite direction. The two reflected waves meet and interfere with one another. Superposition occurs, the opposing directions of the reflected waves cancel out resulting in one "stationary" wave.
Mexico–United States border
The United States–Mexico border is the international border between the United States and Mexico.
It runs from Imperial Beach, California, and Tijuana, Baja California, in the west to Matamoros, Tamaulipas, and Brownsville, Texas, in the east. It covers a variety of terrains, ranging from major urban areas to inhospitable deserts.
From the Gulf of Mexico it follows the course of the Rio Grande (Río Bravo del Norte) to the border crossing at El Paso, Texas, and Ciudad Juárez, Chihuahua. Westward from there it crosses vast tracts of the Sonoran and Chihuahuan Desert. Then it crosses the Colorado River Delta, west to San Diego and Tijuana before reaching the Pacific Ocean. The US-Mexican border is considered an open border.
The border's total length is , according to figures given by the International Boundary and Water Commission. It is the most frequently crossed international border in the world, with approximately three hundred fifty million (350,000,000) crossings per year.
Valeri Bure
Valeri Bure (born 1974) is a retired NHL hockey player for the Montreal Canadiens. He is Russian.
Dallas/Fort Worth International Airport
Dallas/Fort Worth International Airport , often called Dallas Airport and DFW Airport, is between the cities of Dallas and Fort Worth, Texas. It is the busiest airport in Texas. It serves the larger metropolitan area. Regional, national and international flights use this airport. Flights go to 144 domestic and 47 international destinations.
In 2010, it was the fourth busiest airport in the world in terms of aircraft movements with 652,261. it was the eighth busiest airport in the world when measured by passenger traffic, with 56,906,610 passengers in 2010. It is the main hub and largest hub for American Airlines.
The airport is in the cities of Coppell, Euless, Grapevine, and Irving. The land for DFW was purchased by both Dallas and Fort Worth in 1966, and construction began in 1969.
These airlines go to DFW Airport:
German Nuclear Reactor Insurance Association
The German Nuclear Reactor Insurance Association () — an association of German insurers of the nuclear industry in Cologne. The German Nuclear Reactor Insurance Association also is involved in the reinsurance industry.
The first associations of insurers of the nuclear industry in Europe were founded in Sweden and England in 1955. The German Nuclear Reactor Insurance Association was founded shortly thereafter in 1957. Throughout the association's history, it has only once had to pay a claim; the claim amounted to about €10,000 to €15,000.
Despite the slight probability of losses resulting from an insured event in the nuclear industry, in the event of an insured event does occur the possibilities for damages are considerable. As such a single insurance company is unable to bear such risk alone. Under German law, the transfer of a nuclear risk of an insurer to a reinsurer is prohibited. In 1998 the Atomic Energy Act established the maximum insurance liability of nuclear insurer at about €2.5 billion; for damages above that cap the Federal Government is liable according to § 34 of the Atomic Energy Act. If the total damage exceeds the stipulated maximum sum of €2.55 billion, the German Federal Government pays the German Nuclear Reactor Insurance Association for the excess losses. The insurance payments include the cost of evacuating people.
Fukushima I Nuclear Power Plant was insured for some tens of millions of euros with German Nuclear Reactor Insurance Association. Under the terms of the insurance policy, the policyholder was not insured for damage caused by earthquakes, tsunamis, and volcanic eruptions. Therefore the German Nuclear Reactor Insurance Association had no resulting liability to Tokyo Electric Power Company, the owner of the Fukushima I Nuclear Power Plant, because of Fukushima I nuclear accidents.
Impact of Christianity on western civilization
Christianity has been historically intertwined with Western civilization. However, it is difficult to decide what its effects were.
Through its long history, the Church has been a major source of social services such as schooling. Several universities were founded by the Church. Some historians of science, have argued that the Church had a significant, positive influence on the development of science. Some of the Church's priests have contributed to science. In various ways the Church has sought to affect Western attitudes to vice and virtue in diverse fields. It has, over many centuries, promulgated the teachings of Jesus within the Western World and remains a source of continuity linking modern Western culture to classical Western culture.
The Bible and Christian theology have also strongly influenced Western philosophers and political activists. Long held Christian teachings on sexuality and marriage have also been influential in family life.
The cultural influence of the Church has been vast. Festivals like Easter and Christmas are marked globally as public holidays; Pope Gregory XIII's Gregorian Calendar has been adopted internationally. Year numbering in the West is taken from the assumed date of the birth of the Church's founder, Jesus of Nazareth. In the list of the 100 most influential people in human history there are 65 Christian figures from various fields.
Copernicus, a Catholic priest, delayed publication of his work on heliocentrism until the year of his death. The theory attracted some attention among scientists. Decades later, Galileo Galilei took an interest in astronomy, and raised the question more prominently. This brought the attention of the Committee for Propaganda of the Catholic Church, otherwise known as the Inquisition. He was tried, convicted, and forced to retract his published belief in heliocentrism.
Centuries later, the Catholic church had lost interest in subjecting natural philosophy to dogma. The relation of the now separate Church of England to evolution was complicated by the lack of the centralised authority of a Pope. Many conservative clerics opposed evolution fiercely, whilst few liberal clerics saw conflict with their beliefs. Before he published the "On the Origin of Species", Charles Darwin feared the reaction of the church, and spent years collecting evidence as defence to the expected criticism. Long after heliocentrism was all but universally accepted, some Protestant leaders continued to resist evolution.
Jean-Pierre Houël
Jean-Pierre Houël (1735–1813) was French artist. He was painting at the time of the French Revolution. One of his well known paintings is the "Prise de la Bastille" (The Storming of the Bastille), 1789. The capture of the Bastille prison was an important event in the Revolution, and remembered with a celebration and holiday on the anniversary, known as Bastille Day.
Sagami Province
The province had borders with Izu, Musashi, Suruga provinces. Its Pacific Ocean border included Sagami Bay.
The ancient capital city of the province was near Hiratsuka.
Sagami was one of the original provinces of Japan established in the Nara period under the Taihō Code.
In the Edo period, the Tōkaidō road was the main route between Kyoto and Edo. The road passed through Sagami.
In the Meiji period, the provinces of Japan were converted into prefectures. The maps of Japan and Izu Province were reformed in the 1870s.
All of Sagami became part of the new Kanagawa Prefecture in 1876.