In the mid 1970s Dimitrije Milovich created a snowboard inspired by the surfing board called the 'Winterstick'. Finally, in 1977 Jake Burton Carpenter helped by Tom Sims and Chuck Barfoot created the first snowboard model, which made them very rich.
During the eighty's, the sport became very popular. In 1982 the first National Snowboard race was held in Vermont at Suicide Six. The number of windsurfering and snowboarding stations grew very fast everywhere there was snow and mountains.
Snowboarding was first recommended to join the Olympic program in 1996 by the Olympic council in Atlanta. Two years later, some competitions like the Big slalom and the Half-pipe took place in The Olympic Nagano games.
Snowboarders must wear hot and good quality clothes against the cold temperature. They wear also some ski goggles to protect their eyes from reflection of the sun on the snow, against the snow and the wind that can be very hurtful. It is essential to have a good view during the ride. The board that they used has to be fitted by squares on all its length that allow snowboarders to practice this sport even if there is not a lot of snow. Also, the snowboard is equipped with binding to provide snowboarders solidity and stability. The security attach have to be firmly tied on the binding and clip on one of your boots adapted to this sport. Wearing a helmet is strongly recommended.
There are two possible positions on the board. First of all, there is the regular one. With this position, your right foot is placed in the back. The second one is called goofy where you have to put your left foot in the back. The choice between those two positions is personal to everyone. Contrary to what everybody can thinks, goofys are not necessary left-handed or regulars right-handed. In fact, seventy-five percent of the people are regulars. Because the board make a curve in the front and in the back, it can glide on the two sides. In addition, the board called twin-tips is perfectly symmetric, so it allows windsurfers to glide in switch (when the favorite foot is in the back) or in normal-foot (when the favorite foot is in the front).
Aquamarine
Aquamarine is a gemstone, named for its blue-green color, which looks like some shallow seas. It is a type of beryl. The color aquamarine is named for the gemstone. It is considered as a birthstone of March.
Trinitrotoluene
TNT (Trinitrotoluene, also called Trotyl, Tritol, Tolite and Tol) is a powerful, shattering (brisant) nitroaromatic explosive, somewhat similar to dynamite (which is based on the nitric acid ester nitroglycerin, however).
Sometimes TNT is used to mean dynamite, or dynamite is used to mean TNT, because they can both be used in similar ways; however the two materials are distinct, different chemicals with only some of their properties (such as the brisance, their shattering power) being similar while other properties (such as stability and sensitivity) are entirely different.
Traces of TNT can be detected by analytical forensic chemical investigation even in extremely small amounts. For example, if a person has been involved in a crime using TNT, scientists can track it down by testing hair or clothing samples to see if TNT traces are found on them. These traces can remain in the hair or in the fabric of the clothes even after many washings. TNT is a nitroaromatic explosive and it can be dangerous both as an explosive and for being poisonous if handled incorrectly. Soldiers, engineers and workers who must work with TNT should therefore observe strict safety measures when handling this explosive.
Spore
Spores are the way fungi and some non-seed plants (ferns and mosses) reproduce. They are also made by bacteria for long-term survival. Some protozoa also make long-term survival spores.
The spores of seed plants are single cells that grow into a pollen grain or the gametophyte inside the ovule. The structure of seeds in higher plants is more complicated than spores. The main 'innovation' of seeds is their nutrition for the developing embryo, which spores do not have.
Fungi (for example, mushrooms) produce spores, which may be asexual or sexual. The asexual spores have inside them the genetic material to make a whole new organism identical to its parent.
Conidia are asexual, non-motile spores of a fungus; they are also called mitospores due to the way they are generated through the cellular process of mitosis. They are haploid cells genetically identical to the haploid parent, can develop into a new organism if conditions are favorable, and serve in dispersal.
Asexual reproduction in Ascomycetes (the Phylum Ascomycota) is by the formation of conidia, which are borne on specialized stalks called conidiophores. The morphology of these specialized conidiophores is often distinctive of a specific species and can therefore be used in identification of the species.
Bacterial spores are extremely resistant. Spores of tetanus and anthrax, for example, can survive in the soil for many years. The origin of these spores was discovered in the 19th century, when a biologist noticed, under the microscope, a small, round, bright body inside bacterial cells. This survived even when the bacteria were boiled for five minutes. This killed the bacteria, but not the spores. They germinated when conditions were right.
Plants have alternation of generations. One of the generations is the sporophyte, which produces spores by meiosis, and the other is the gametophyte with produces gametes.
Radiohead
Radiohead are an English rock band from Abingdon, Oxfordshire. The lead singer and lyrics writer of the band is Thom Yorke, who also plays guitar and piano. Thom is known for his high voiced singing style and the band is known for their different style of rock music.
The band has five members, and three of them play guitar. In their early years, Radiohead was known for their layered and heavy guitar sound. In later years, the band began using other instruments too, and creating more electronic sounds. The band still performs live and attracts large crowds of fans to sold-out concerts, even though they play many different styles of music.
They have created nine albums so far, the most recent being, "A Moon Shaped Pool" (2016)
Radiohead started in 1985. The members of the band went to school together at Abingdon School, a boys' school in Abingdon, Oxfordshire. The band first called themselves "On a Friday". The band would usually rehearse on Friday in their school's music room.
On A Friday signed a contract with EMI, a large record label, in 1991. They changed their name to "Radiohead". This name came from the song "Radio Head" on the album "True Stories" by Talking Heads. They released their first EP, called "Drill", in May 1992. It was not very popular. Radiohead started work on their first album. It was called "Pablo Honey" and it was recorded in 1992 in a studio in Oxford. They released their first single, "Creep", late in 1992. They released "Pablo Honey" in February 1993. Initially, the album was going to be released also in late 1992 but was delayed. The album did not become popular, but "Creep" did, and the band got a lot of fans because of it. At the time, Radiohead's style of music was not very popular, and people said it sounded like Nirvana, but was not as good. They said that other Britpop bands, like Suede, were better. "Creep" was played on the radio at a lot of colleges around the world, however. When Radiohead went on tour in the United States in early 1993, the music video for "Creep" was being played a lot on MTV.