Homophony means music in which the voices or instruments sing or play chords (chords are when two or more notes are played together.) In homophonic music all the choir (sopranos, altos, tenors and basses) are singing the same words at the same time. There is a tune on top and the lower parts are the accompaniment. This is what happens in hymn singing. The opposite is polyphony. Polyphonic writing is more complicated: the choir sing different melodic lines at the same time (see counterpoint). The terms "homophony" (literally: "one sound") and "polyphony" (literally: "many sounds") are mostly used for choir music.
In homophonic music it is easy to hear the words that are being sung. In polyphonic music it is much harder for the listener to understand the words. Composers often used polyphony when writing music for the mass because everyone knew the words anyway. Homophonic music became more important when composers started to write operas and madrigals where a story is being told and the words must be heard clearly.
Technetium
Technetium is a chemical element. It has the chemical symbol Tc. It has the atomic number 43. The color of technetium is silvery-grey. It is radioactive. It is a crystaline metal. In chemistry it is placed in a group of metal elements named the transition metals. The chemistry of technetium is somewhere between rhenium and manganese.
The isotope Tc is used in nuclear medicine. It is used for many diagnostic tests. It has a short half-life. Tc is used as a source of beta particles without emitting gamma rays. The ion that has oxygen and technetium bonded together (TcO) is named the pertechnetate ion. The pertechnetate ion could be used as to prevent anodic corrosion in steel.
Before the element was found, many of the properties of element 43 were predicted by Dmitri Mendeleev. Mendeleev saw a gap in his periodic table. He named the element in the gap ekamanganese. In 1937 the technetium isotope Tc was the first element to be artificially produced. This gave the element its name. In Greek τεχνητος means "artificial". Most technetium made on Earth is a by-product of fission of uranium-235 in nuclear reactors. It is extracted from nuclear fuel rods. On earth, technetium occurs naturally only in uranium ores as a product of spontaneous fission. The amount of technitium in the ore is very small but has been measured. No isotope of technetium has a half-life longer than 4.2 million years (Tc). This means that its detection in red giants in 1952 helped support the theory that stars can produce heavier elements. it is the first man made element in periodic table
Monastery
Monasteries are places where monks live. Although the word "monastery" is sometimes used for a place where nuns live, nuns usually live in a convent or nunnery. The word abbey (from the Syriac/Aramaic word ': "father") is also used for a Christian monastery or convent. The monk in charge of an abbey is called an abbot; the nun in charge of an abbey is an abbess.
Several religions have a system of monasteries. Christian monasteries have a chapel for the monks to worship. Monks are not allowed to marry (celibacy). They are also not allowed to own anything. Everything they use, including their clothes, belongs to the monastery. During the Middle Ages after the Roman Empire was defeated, monasteries were some of the few places where knowledge still existed.
Some monasteries were built in places far away from where other people lived. The monks who live there live very isolated lives, growing their own food and looking after one another. Other monasteries were in or near towns. Monks do a lot of work in the community, including as teaching, medical care or telling people about God. Few monks live isolated lives nowadays.
Windows Neptune
Windows Neptune is a version of Microsoft Windows that was being made during 1999 and January 2000. Windows 2000 was released as an operating system for businesses and people that know how to use computers well. Windows Neptune was going to be a version of Windows 2000 that was easier for home users to use. Nobody knows if Microsoft was ever going to release Windows Neptune. After Microsoft stopped developing it, some of its features were merged with Windows 2000's and a new project, "Whistler", was formed. "Whistler" was later released as Windows XP.
Only one known confirmed version of Windows Neptune exists. which is Windows Neptune Build 5111. Windows Neptune Build 5111 exists on the Internet, and is a confirmed built. It used to be hard to find, but now it can easily be found.
Alexander Lukashenko
Alexander Grigoryevich Lukashenko (born 30 August 1954) is the President of the country of Belarus. He has been its leader since 1994. He was the first leader of the country to be chosen by Belarus citizens.
Before becoming the leader, he belonged to the law making section of the government. He was also in the military of the Soviet Union and ran a factory that made things to help farming.
He has been called "Europe's last dictator".
His re-election in 2020 was seen as controversial with many saying it was rigged and unfair. His re-election caused many to protest against the election results. After the contested election, the European Union, the United Kingdom, Canada, Ukraine and the United States do not recognize him as the legitimate president of Belarus.
In July 2020, he said that he had COVID-19 after telling people that to avoid the disease they should drink vodka.
Shelf
A shelf is a piece of furniture that is used for storing items.
It could also mean:
Throat
The throat is a part of the body. The throat is connected to the mouth at the top and to the stomach at the bottom. The throat is where food travels after being eaten and chewed by the teeth. Fluid drinks, such as water, also travel through the throat to the stomach and on to the rest of the body.
Safe
The word safe has more than one meaning.
Jelly
Gelatin or Jelly is a dessert item. Gelatin can come in different taste choices, or flavors, depending on what fruit or artificial flavor. Jelly is a cold and solid food that is normally made from hot water and powder.
Jelly can be added to foods like a peanut butter and jelly sandwich.
Depending on where you live, gelatin may be called different things. In the United States and Canada, jelly is often called 'Jell-O'. Jell-O is a brand of gelatin that has become a generic, or typical, name for a lot of gelatin. Like the United States, in Canada "Jell-O" is a normal name for gelatin. In Commonwealth Nations like the United Kingdom and New Zealand, almost all gelatin is called jelly. Also, it is spelled gelatine.
Sometimes, alcohol is added to jelly. You can make jello shots with almost any type of alcohol. Jello shots can be served in small glasses and can be any color depending on the other ingredients put into the Jell-O shot. The jello shot is also known as the poison rainbow.
Biogeography
Biogeography is the study of how species are distributed. It aims to show where organisms live, and why they are (or are not) found in a certain geographical area.
Biogeography teaches how animals and plants are adapted to the places they live in, but how similar places often have quite different animals and plants.
Biogeography teaches the reasons why this occurs by resarching species in different places in the world. Between about 1800 to 1855, natural historians made lists of species in various regions of the world. These lists were published as tables in their books. Charles Darwin and Alfred Russel Wallace published the idea of evolution by natural selection. They travelled to tropical countries to find out why species were suited to the places they lived, and wrote about the life in those countries. They said that evolution was the key to understanding geographical distribution.