José Raeiro :: ASTRONOMIA

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All over the world many people had enjoyed diving, not only for sport but also for recreation purposes. Because of the fascinating and awe-inspiring beauty underwater, people have been able to identify ways and means to explore great depths in water bodies.

Nowadays many people had pursued a career in diving or snorkeling which enables us to gain knowledge from the landscape of the oceans and the river beds and one can look for remains of some shipwrecks that had happened in earlier times. Its mania in people is growing multiplied due to various reason. One reason is the entirely different world underwater. They can not forget the enticing beauty and the interaction with aquatic animals. Another reason is to view the huge variety of corals under water in their most pristine and natural state.

Scuba divers are required to use scuba gear when they intend to go deeper. The primary objective why these suits should wear is to protect legs from the effects of rough metal or wood underwater. They wear wet suits in order to prevent hypothermia in an extreme conditions and especially air temperature or cold water. Other variety of diving suits that are available are full suits, shorties, and thermal suits. The full suits will completely cover the legs, arms and torso. This suit offer the best protection when the water is frigid. While the shorties suits is used for warmer diving and it provides protection by keeping the diver’s core warm. This kind of suit is extended up to the elbows and knees.

An individual who’s interested to become a scuba diver, minimal amount of training is essential.

As most of you already know, high jump is a track and field athletics event in which participants must jump over a horizontal bar placed at measured heights without any support. Over the centuries since, competitors have introduced increasingly more effective techniques to arrive at the current form. The oldest is the scissors techniques, eastern cut-off, the western roll, the straddle and more others.

In high jumping technique there are four important aspects that we need to understand. First is the run where it sets the basic jumping pattern. The player should focus on maximising the angel of the run as directly proportional to the distance with which the arms and legs clear the bar. Second is the gather. Here the players will gather all the momentum he has achieved from the run and coverts it into a jump. To achieved this perfectly, a great deal of practice, strength and muscular ability are applied. The third is the lead. To perform this jump, make sure that your leg is kept as straight as possible while running as fast as needed. Finally is the clearing bar, which determined by four aspects, these are angle of the take off, the degree to which the straight leg was extended, the inclination of the rest of the body, and the quality of the take off.

Since the quality of a player is tested in his exhibition of recklessness, he should know when to practice technique, caution and calculation to let go. To have a perfect high jumping, you must remember these three aspects, competitive spirit, adequacy or power and mastery of technique.

Do you know what kind of sport is Muay Thai? For sure some of you already heard this sport. However, others may not familiar in this regard. But to gives you further knowledge in this regard, here are some details as follows.

Muay Thai was originated in Thailand. This is know as combat sport that uses stand-up striking along with various clinching and techniques. The words where this sport named derives from the Sanskrit. The word muay (from sanskrit mauya) which means “to bind together” and the word thai referred to as “Art of Eight Limbs” of the “Science of Eight Limbs” where in puches, kicks, elbows and knee strikes are used.

In muay thai, participants are allowed to use a much broader range of moves than athletes in other forms of boxing. Compared to kickboxing, muay thai boxers are allowed to use their elbows and knees, and they have broader range of striking, movement, and blocking capabilities.

But this does not mean that muay thai is more dangerous than other types of kickboxing. True there are risks associated with muay thai, however this only applied if the fighter is lazy or not well trained. But if they follow all the lessons of proper kicking techniques and keep in good shape, these risks and damage will be avoided.

In adult level, muay thai class is mainly for fun, exercise, and self-defense. During the class sparring is achieve, but everyone will be well padded and the impact is not damaging. To kids participation, this should be under the parents’ consent.

Do you enjoy doing ski jumping? I’m sure you do! And besides, for sure you’re also inspired using the techniques that are involved in this kind of sport, isn’t it?

By the way, what are the techniques involved in ski jumping? Before we will consider these techniques, let us first take into account the four mains sections where different techniques applied. These sections are in-run section, take-off or jumping section, flight section, and landing section.

In early times, some techniques that were made use by the ski jumpers are Kongsberg technique which is first formulated in Kongsberg. Later this technique was modified where in the arms were placed in a backward direction at the back of the hips with an objective of achieving a closer lean.

The contemporary technique called V-technique is use to ensure that the skiers are able to achieve a take-off hill distance. This kind of techniques is greater than which can be achieved by the previous techniques used by a parallel skis. Through this technique there are almost 10 percent height increase that the skiers were able to achieve compared to the previous techniques.

With respect to contemporary skiing, one of the greatest factors that hold great importance is known as Aerodynamics. In this factors, there are new rules and regulations have been associated with ski jumping suits such as loopholes which will benefit the jumpers who are skinny in their body frame.

To helps us understand the role of softball umpires, let us first consider some details regarding softball.

Softball is a kind of sport played using bat and ball between two teams with ten to fourteen players. This sport is directly under baseball however there are some key differences such as the size of the ball, the game area and the form of throwing pitches.

Now that we already knew what is softball sport, let us now consider what are the roles of the umpires. In the game, umpires are responsible to make decisions related to the play and these are considered to be final in all respects. By using hand signals or vocalizing or by making a call, this indicate their decisions. They also control and monitor the game of softball.

Umpires that are allowed to participate in a game is between one to seven. There are three base umpires and three outfield umpires. There is also an indicator called as the clicker or counter. This indicators helps in keeping a track of the entire game.

How about the official uniforms of these umpires, what is required to wear? According to NCAA, ASA and ISF games, the required uniform that softball umpires must wear are navy blue slacks along with short which is light powder blue in color and a baseball cap which is navy blue in color.

If protest arise against the decision of the umpire, presence of an interpreter for rules or a Tournament Chief Umpire (TCU) is generally allowed to make judgments.

What do you know about Tae Kwon Do? Some might say that this is a form of martial art, however others were not familiar with this form.

Since this sport was originated from Korea, it is now practiced and became the national game in the country. Today, this sport has become a form of exercise and self defense. Like boxing, fighter in Tae Kwan Do comes together in the arena with one another. This kind of sport is very complicated where in competitors must be aware in prior about the hits and strikes and know how to gain points.

Protection gears should wear by both fighters in order to follow the rules and the regulation of the game. The game will be play in three rounds with three minutes each and one minute break between the rounds. Once a fighter knocked down, the referee start counting until eight counts and if the fighter can’t raise his hand before finishing eight counts, the fighter will be declared as loser and knock down by opponent.

In order to win the fight, unexpected enormous energy strike is applied through kicks and punches. However, there are some restricted areas where the opponent can not hit, such as back of the head and area below the waistline. Areas where opponents can hits are the front of the head, chest and the torso.

So if you’re interested in this kind of sport, you have to be trained first and must have the ability to spar with accurateness and potency.

O blog Chove sobre Prometeu é local para ensaios mais pessoais acerca dos mais variados assuntos desde a culinária até à filosofia, passando claro, pela ciência.

Neste blog também são abordadas com alguma profundidade e bastante clareza para o público em geral as notícias mais importantes da astronomia. No seguimento desse trabalho já fiz consultadoria junto de vários orgãos de comunicação social. Se estiver estiver interessado em comentários ou em consultadoria em relação às notícias do blog contacte-me em press@raeiro.com.

traduções

Desde há alguns anos que tenho vindo a realizar várias traduções de livros e artigos relacionados com a astronomia. As traduções são um trabalho de comunicação interessante. Neste momento estou a desenvolver em conjunto, muito por causa desse trabalho, um vocabulário português de astronomia com os termos relacionados.

Já traduzi alguns livros de astronomia. É um trabalho que eu aprecio especialmente. Alguns exemplos: Explora o Universo em Acção, Atlas do Céu Nocturno e Descobre o Espaço.

Outras traduções também muito interessantes que tenho realizado são as crónicas do Phil Plait no Portal do Astrónomo.

projectos

Neste momento estou a desenvolver vários projectos relacionados com a astronomia. A seu tempo terão o seu espaço aqui nesta página. Se tiver alguma ideia ou sugestão relacionada com a divulgação da astronomia eu terei todo o gosto em ouvi-la. Escreva-me.

Swimming is a kind of sport that involves water. In a body of open water, there are 5 kilometer, 10 kilometer, and 25 kilometer events for men and women, however, 10 kilometer event is included in the Olympic Games for both men and women.

No doubt most of you already familiar regarding the four major swim styles such as freestyle, breaststroke, backstroke, and butterfly. These are the main strokes that are used during the swimming events.

In the nineteenth century, competitive swimming becomes popular and their primary goal is to constantly improve upon one’s time, or to beat the competitors in any given event. Today, the international governing body for competitive swimming is the International Swimming Federation known as FINA.

During the 2008 Olympics in Beijing, these high-tech swimsuits were mentioned. The primary purpose of those high-tech swimsuits is to enhance the athletes’ performances in the racing events. And upon viewing the thrilling swimming race with the high-tech swimsuits, many viewers were fascinated.

However, when the 43 world records were broken, governing bodies had decided to take action with a series of bans that now cover all of the top-level swimming events around the world. Naturally, there are some in swimming disagree with this decision. Some argue that that this high-tech swimsuits makes focus on who has the best suit rather than who has the most talent and training. Because this ban affects television ratings and athlete sponsorships, the swimming governing bodies are likely to start rethinking their decision.

Um workshop é no fundo um mini-curso temático onde são realizadas actividades práticas e divertidas que promovem o racicínio crítico e a aplicação de conhecimentos ao maravilhoso mundo da astronomia. Para tal são realizados durante de 1 a 3 dias trabalhos de grupo recorrendo a vários programas de computador, telescópios, e outros materiais: uma excelente maneira de motivar os jovens para a aprendizagem das ciências. Além das actividades práticas também é dado um suporte teórico onde é possível aprender e discutir novos assuntos. No fim de cada workshop é realizada uma sessão de observação do céu nocturno com telescópio.

Como no caso dos cursos, os workshops são complementados com um sistema de e-learning onde os alunos poderão rever a componente teórica, consultar notícias relacionadas, testar o seu conhecimento, ou discutir através de chats e fórums em qualquer computador com acesso à internet. Este sistema está disponível em

alien vs. predator

Workshop de astronomia: “Alien vs. Predator: Caçadores de ETs”

É inegável a influência da ficção científica na cultura ocidental tanto na última metade do século XX como no começo deste século. Tipicamente são as camadas mais jovens, e escolares, que mais a apreciam e assimilam tanto como desafio à imaginação como também por lazer. Temos como exemplo o caso da TV: actualmente boa parte das séries que passam no canal mais orientado para as camadas jovens (a SIC Radical) são precisamente de ficção científica (Star Trek, Babylon 5, Espaço 1999, etc).

Aproveitando esta predisposição e gosto pela ficção científica será o nosso objectivo cativar esses jovens para a Astronomia e a ciência, com as suas componentes multidisciplinares (matemática, física, química, geologia, entre outras), através de um dos temas mais populares na ficção científica: a vida fora da Terra.

Apesar desta área no senso-comum passar quase apenas por histórias de ficção científica e/ou relatos esotéricos e/ou fraudulentos de avistamentos, existe actualmente uma comunidade científica que tem como objectivo a procura de vida inteligente fora da Terra. Essa busca vai desde a astronomia com osradiotelescópios até à exobiologia com o estudo contextualizado da evolução/estrutura da vida aqui na Terra.

O objectivo principal deste workshop será ensinar a ciência e a história dessa busca, tentando ao mesmo tempo motivar os alunos a colocarem questões a eles próprios e a questionarem tanto o seu conhecimento como também o desta demanda científica. Como este tema requer um conhecimento geral sobre o Universo, a primeira parte do workshop consistirá em 3 palestras, com tempo reservado para a discussão e dúvidas. Todas as palestras serão dadas com recurso a meios multimédia (vídeos, imagens, som) de forma a explicar e a esquematizar os conceitos a aprender de uma forma cativante, científica e clara. Depois haverá trabalhos de grupo, tanto em suporte informático como actividades com discussão e apresentações. No fim haverá uma sessão de observação que permitirá aos alunos ficar a conhecer melhor o céu nocturno.

Consulte aqui o programa. Se quiser este workshop na sua escola ou instituição por favor contacte-me.