Wednesday, November 8, 2017

Theater Arts – Italian Opera

Lully's Opera "Armide" Performed at the Palais-Royal - Photo: Wikimedia
Italian opera is the earliest known opera form. Although the Greek and Roman Theater had inspired it, it inspired many countries around the world, including most of Europe. Some say that the word opera has been derived from the Italian words “Opera in Musica” which means work in music. The evidence of the very first opera performed in Italy was at the wedding of Marie de Medici and Henry IV of France. The Italian opera had three stages namely the baroque, the romantic and the modern. 

Baroque period is the name of that period of Italian opera that originated in Italy in the beginning of the 17th century. The voice used was very high pitched along with the instrumental music. This style was known as monody and was developed by Giulio Caccini and Jacopo Peri. It was reflected in the opera Euridice that was based on the story of Eurydice and Orpheus. When there were no dialogues during the performance, there were songs with music. This type of opera inspired many other writes, one of them was Claudio Monteverdi who wrote La Favola D’Orfeo that had the monody style. It was his first play and it still is famous with the audience today. Monteverdi worked hard on synchronizing instrumental music with the words and showed this effort in Mantua, with large choruses with nearly forty instruments that created a really good effect.  He was named as the Maestro Da Cappella in Venice in the year 1613.



The first opera house for the public was opened in the year 1637. Monteverdi wrote many compositions for this theater and his works L’Incoronazione di Poppae and I Ritomo d’Ullise in Patria were prominent out of the many. He even brought the Bel Canto and Buffa styles into Italian opera. Bel canto had a more even tone and eased the singing stress. Buffa had more comic touch with amusing and mocking elements. All these acted as the stepping-stone for many other later composers. At the end of the century, there were three hundred and fifty opera created for the theaters of Venice alone. Many young artists were inspired to work in these theaters and bring out their talents. People came from outside Italy too.    

In the 19th century, romantic opera began to rise and Gioacchino Rossini was responsible for it. The romantic opera involved lots of emotions and imagination along with lots of music and arias. This music was so fine that it overshadowed the blunders in the stories. His composures such as La Cenerentola and Barber of Seville are famous until today. Many others such as Vincenzo Bellini, Giuseppe Verdi, and Gaetano Donizetti followed him.  

Giuseppe Verdi changed the way opera was written at that time. Nabucco was his first work and it was a very big success because of the great choruses along with enormous liveliness in the music. He even wrote Va pensiero, a chorus presentation to inspire the warriors at the time of Italian independence struggle. The works, which followed this had a more patriotic theme and were also based on older romantic works. He began to venture into different musical forms and finally his creation Otello replaced Rossini’s opera. His last work Falstaff finally changed the conventional form of theater and made music and words more free-flowing.


Monday, November 6, 2017

How Mountain Bike Gears Work

A broken gear on the rear hub gear drive on a Mountain bike - Photo_ Wikimedia
The gears in mountain bikes just keep getting more and more intricate.  The bikes of today have as many as 27 gear ratios.  A mountain bike will use a combination of three different sized sprockets in front and nine in the back to produce gear ratios.

The idea behind all these gears is to allow the rider to crank the pedals at a constant pace no matter what kind of slope the bike is on.  You can understand this better by picturing a bike with just a single gear.  Each time you rotate the pedals one turn, the rear wheel would rotate one turn as well (1:1 gear ratio).

If the rear wheel is 26 inches in diameter, then with 1:1 gearing, one full twist on the pedals would result in the wheel covering 81.6 inches off the ground.  If you are pedalling at a speed of 50 RPM, this means that the bike can cover over 340 feet of ground per minute.  This is only 3.8 MPH, which is the equivalence of walking speed.  This is ideal for climbing a steep hill, although bad for ground or going downhill.

To go faster you'll need a different ratio.  To ride downhill at 25 MPH with a 50 RPM cadence at the pedals, you'll need a 5.6:1 gear ratio.  A bike with a lot of gears will give you a large number of increments between a 1:1 gear ratio and a 6.5:1 gear ratio so that you can always pedal at 50 RPM, no matter how fast you are actually going.

On a normal 27-speed mountain bike, six of the gear ratios are so close to each other that you can't notice any difference between them.  

With actual use, bike riders tend to choose a front sprocket suitable for the slope they are riding on and stick with it, although the front sprocket can be difficult to shift under heavy load.  It's much easier to shit between the gears on the rear.

If you are cranking up a hill, it's best to choose the smallest sprocket on the front then shift between the nine gears available on the rear.  The more speeds you have on the back sprocket, the bigger advantage you'll have.

All in all, gears are very important to mountain bikes as they dictate your overall speed. Without gears you wouldn't be able to build speed nor would you be able to pound pedals.  The gears will move the pedals and help you build up speed.  

There are all types of gears available in mountain bikes, all of which will help you build up a lot of momentum if you use them the right way.



UFO Simply Means 'Unidentified' Flying Object

Ufo - Picture: Pixabay
What comes to mind when someone talks about a UFO? Do you think about the cover of a science fiction novel and the image of mysterious bluish lights beaming down from it? Do you think about a time when you were out late at night and you saw a flash of light, wondered what it was only to realize a moment later that what you saw wasn't a UFO - it was just the lights of a plane that was beginning its descent? Do you think of movies, or little green men, cartoons, or do you just turn away shaking your head?

A lot of people discuss UFOs as flying saucers - it seems to be the best description that they can come up with. Others suggest, rather dismissively, that UFO simply means unidentified flying object and that the light that someone saw flashing in the sky was either a plane, a helicopter or a reflection of light off of a cell phone tower or another metal object.

Reflections of light from a cell phone tower do little to explain away "mysterious materials" found in Roswell, New Mexico in the late 1940s. While the United States military has always stood their ground that these materials were merely fragments of a research balloon, a top-secret test that ended badly, others offer another explanation. They assert that the materials were fragments of a UFO, an alien craft that crashed rather than safely landing. They believe that the "flying disc" - as it was called by military personnel - that was recovered could not be something from this world, and so began one of the most talked about UFO encounters in the world.

Many who believe that the UFO in Roswell, New Mexico deserved more attention than it was being given, believe that it wasn't something that could just be dismissed. In part, this is likely to have something to do with other stories surrounding the flying saucer. A farmer talked about having found materials miles away from Roswell, and the story was picked up by newspapers, accompanied by photos of the strange find - strips of rubber, something like aluminium foil, sticks. It's a story that has gained so much attention around the world that it has influenced many people's sense of alien life and alien visitations to earth.

If the Roswell, New Mexico story had never become so widespread, UFO and flying saucer may not be so common in our language, in our experiences and in novels, television programming and films. How common is it for people to see a UFO?




It's hard to say, really, because many people who see an unidentified flying object in the sky are reluctant to report it. Either the person who saw a UFO believes that there is a far more logical explanation or merely thinks that no one would believe them if they were to say anything about it. And yet, there are UFO sightings that are shared and that become the topic of conspiracy theories by those who believe that beings from other planets and galaxies have visited the earth.

One such incident occurred in 1980 in Rendlesham Forest in Suffolk, England. Those who saw the UFO all claimed to have seen flashing lights coming from an unidentified flying object that was descending towards the woods - a UFO that was roughly the size of a car and seemed to float on a beam of light. After reports were made about the object, it was discovered that trees were damaged, radio frequencies became nothing but static and soil samples later showed radioactive activity.

Similarly, in Gulf Breeze, Florida in 1987 tales of a UFO began to circulate when a man saw a strange light coming from his lawn. When he saw the flying saucer, he grabbed a camera and started shooting photos as proof of what he had seen. Of course, in this situation, the story was not just of a UFO sighting, but about repeated experiences and of the man's being beamed up onto the craft.

Though discussions of these UFO sightings continue, and there have been audio recordings and photo documentation, it is still difficult to know whether or not the unidentified flying objects were indeed from space. Many claimed, in regard to the Gulf Breeze, Florida UFO sightings, that the man had manipulated the photographs and fabricated the story.





In each case, both sides - the believers and the sceptics - find evidence to support their claims. Those who believe in UFOs and alien visitations cite facts that they claim cannot otherwise be explained. Those who are sceptical offer their own explanations along with their own supporting evidence. Which side is right? For now, that's up to you to decide.


Sunday, November 5, 2017

Back Exercise Stretches For BACK PAIN

You will hear many people complain of back pain occasionally. About 75% to 85% of the people experience back pain at some point of time in their life. The most common area of back pain is the lumbar region of the spine. This is the region that bears most of the body weight. Sudden twisting and bending can cause injury to the back. Back pain also occurs when the muscles get stiff because of poor posture. Back exercise stretches the stiff muscles to provide relief.



Back Exercise Stretches - For Back Pain Relief

Back exercise stretches need to be performed softly. You should treat your back gently and not subject it jerky and violent movement. The exercise routine that you follow should start gently, and gradually build over a period of a few weeks. You could cause more harm than good, if you do not follow expert advice in matters of back exercise.

Warm up your body before you embark on the stretching routine. Exercise stretches the muscles, ligaments and tendons in the area surrounding the back. The muscles and tendons associated with the spine are designed for movement. Hence, they need to be stretched everyday to perform optimally. The hamstring muscles are an important factor in back pain problems. Most people with back pain have stiff hamstring muscles.

Stand comfortably with your feet shoulder width apart. Now slowly bend forward and try to touch your toes with your hands without bending your knees. Your action should be smooth and not jerky. Be careful not to overdo the stretching part. Stop when you feel pain. This exercise stretches your hamstring muscles. Your back pain will improve gradually, as you continue with the exercise. The exercise can also be performed while lying down.




Saturday, November 4, 2017

The Harlem Renaissance

320
Lois Jones, artist and teacher - Photo: Wikimedia
The quest for equality and freedom for African Americans has been fought on many fronts.  But there is no question that in the area of the arts, the contribution of black America has been so profound that it has greatly eased racial tensions and changed the image of black culture profoundly in the eyes of all Americans.  Many have criticized the world of such black performers as Richard Prior, Bill Cosby and Eddie Murphy but these artists along with artists in literature, painting, poetry, music and all the arts have brought an acceptance of black culture that has furthered the appreciation of African Americans by all people more than anything else ever could do.

In the history of black culture, the Harlem Renaissance in the 1920s was a time when African American culture truly was showcased for the country, indeed the world and people started to realize the rich legacy that was available to all peoples in black culture.  The Harlem Renaissance was more than just a greater exposure to black dance, music, comedy or theatre even though the chance for all peoples to appreciate the talents of black artists was certainly worthwhile in its own right.  

But the Harlem Renaissance also refers to the cultural and social movements of the time in which black pride was beginning to cause big changes in the way African Americans thought about themselves and eventually how all Americans thought of black Americans as well.  A lot of factors led to the explosion of black culture during that time frame, especially in New York City.  The city had been a Mecca for artists of every culture for a long time as it still is today.  And during this time frame, there was a migration of the African American population to the north and to the urban industrial areas particularly to take advantage of the economic opportunities there.

With the migration of the African American population came the rich black music that had continued to grow and evolve ever since the Civil War.  But because of the concentration of cultures in New York and the willingness to experiment, to blend and to discover new cultures that was the norm in that melting pot city, white America too began to discover the jazz,  blues, spirituals and gospel music that began to evolve and integrate into many secular musical styles of the time.



The era was in every way a renaissance just as much as the great cultural renaissance in Europe had been many years before it.  In every genre, black culture exploded onto the national consciousness.  Many outstanding, stand-out names that became household names in literature and the arts came into their own during the Harlem Renaissance including Langston Hughes, Booker T. Washington, Louis Armstrong, Duke Ellington and Jelly Roll Morton.  

There is no question that the cultural explosion that occurred during that brief time frame created a tidal wave of change that is still being felt today.  The blending of blues, gospel and spirituals, when it began to see experimentation by the likes of Elvis Presley, Jerry Lee Lewis and Little Richard spawned an even bigger cultural event known as rock and roll music that changed the world forever.  And to this day many of the mannerisms, the approach to style and speech that came to be known as “being cool” was, in reality, an attempt, especially by youth, to emulate black culture.  And by imitation cultures began to merge and blend to where they could never live separately again.  And that blending and enjoyment of black culture have done much to help integrate society and make social change and acceptance of each other’s cultures by black and white a possibility today.


Thursday, November 2, 2017

How to Use Criminology and Forensic Science to Effectively Solve Crimes

Fingerprints are taken by William James Herschel 1859-1860 - Photo: Wikipedia
There are a number of ways in which an individual is able to couple criminology and the practices of forensic science in order to catch a criminal.  In some cases, the individual is profiled through criminology and matched up to the forensic evidence left at the scene of the crime.  

However, there are a number of other ways in which the two genres are used together in order to bring about justice within the penal system.  Criminology is the study of how science and environment affect the criminal mind, as well as the interaction between individuals or communities and the criminal element.  Forensic science is the area of study in which individuals are able to transform one small piece of information into something of substance.  In many cases, forensic scientists are able to use pieces of forensic evidence and what they learn from this piece in order to effectively illustrate either a link between an individual and the crime or an alibi for the individual wrongly accused of a crime.

A few major career focus areas for forensic scientists exist.  Criminology areas of expertise range as well, although they are all trained by learning the similar material in school.  Forensic science fields are especially diverse and offer unique benefits within each one.  Together, the members of the forensic science and criminology teams are able to work together in order to piece together their separate information to come up with one solution near completion, based on the facts they have all gathered. 

For example, a police officer working as a criminology expert may be able to psychologically profile a suspect, but they would require the help of a forensic scientist in order to match carpet fibres from the crime scene to carpet fibres in the suspect’s home or vehicle.  By linking together all the separate notions that each individual is able to learn, a complete or near complete timeline of the suspect and crime can be composed.  With enough evidence, this can be taken before a court and the trial will begin against the alleged suspect.



Some of the categories that exist for individuals involved in forensic work include medical examiners that inspect corpses, crime laboratory analysts that are able to look at the chemical and biological makeup of pieces of evidence, crime scene examiners, and those that assist in a technical or academic capacity.  Through the combination of these different branches, coupled with the work of criminologists, crimes can be pieced together in a more logical and straightforward way, in order to illustrate to juries and judges the events of the crime and suspected individual.  

This is especially important because in serious cases the jury has to be in agreement that there is no reasonable doubt on the part of the individual defendant’s role in the crime.  In other cases, the defence will use the forensic evidence in order to clear their defendant of the charge or charges against them.  By using virtually irrefutable evidence of a scientific nature, the jury and the judge are able to clearly see how crimes are or are not linked to the suspect.



Wednesday, November 1, 2017

The History of Bush Flying

Note the tires. Eklutna Lake is a popular recreational lake in Chugach State Park in South-Central Alaska -
Photo: Wikimedia
Remember pilots pictured with silk scarves fluttering in the wind, flying their vintage airplanes on adventures to dangerous corners of the world, saving people? “Busy flying” might be legendary in its illustration, but it is very much alive and true in its representation.

One of the last visages of pre-modern aviation, bush flyers are a precious commodity in Canada, Australia, Alaska and the jungles of South America and Africa, providing isolated communities with supplies of food and medicine, and communication with the outside world. Not only do their planes have to be adaptable to the tough and changing terrains and seasons in each country through periodic mechanical changes, bush pilots have to brave the same harsh elements, lack of work safety quotient and uncertain financial rewards.

The challenging life of a bush pilot was perhaps best summed up by C.H. “Punch” Dickins, a veteran Canadian bush pilot, as, “a pilot and mechanic, who is ready and willing to take any kind of a load to any destination, on or off the map, within the limits of their aircraft, and the financial resources of the customer.” 

Bush flying became a popular post-war option for the bravest and thrill-seeking veteran American and Canadian military pilots as they sought an income from their technical abilities. However, only those who could handle and maintain their aircrafts would become fixtures on the bush flying circuit, despite the relatively low barrier to entry in obtaining low-cost aircrafts for use like the Curtiss JN-4 Jennys and HS-2L flying boats. Imagine a situation where a bush pilot was to be stranded in uninhabited regions such as the Arctic tundra or empty desert with its relentless heat. Plane repair abilities would be of life-saving importance and many modern bush flights include flight engineers.

In October 1920, a fur buyer requested the Canadian Aircraft in Winnipeg, Manitoba, to fly him home to The Pas, in one of the first documented paid bush flight. The journey included harrowing flights over swirling lakes, thick jungle bushes and deep swamps and bogs, before becoming the first plane to touch the ground on the final destination.

This opened up the possibilities of exploring uncharted global territories such as the Arctic regions. It also presented greater markets for bush pilots, including oil exploration in the Arctic Circle, mine claims, forest fire patrols, timberland, and waterway aerial mapping. Bush flying extended the reach of airmail service to isolated regions and provided medical transport for the same workers and hunters.




These developments called for better and more reliable aircrafts for bush flying, in order to push the commercial viability of bush flying. The result was the 1926 creation of the Atlantic Aircraft Corporation, of a markedly improved and safer single-seat high-cabin monoplane known as the German Fokker Universal. The steady plane with strong wooden wings and a tough steel tube fuselage consisted of a revolutionary shock absorber that allowed landing on uneven terrains and simultaneous floating or skiing capabilities. On a plane driven by the Pratt & Whitney radial engine, a bush pilot would fly in an open cockpit with passengers or cargo stored in cabins built under the aircraft’s wings.

From 1926 to 1931, over half of the 44 Fokker Universals made in the U.S. were used by bush pilots, preceding wide-spread usage by U.S., Canadian and foreign airlines.

November 12, 1935, witnessed the first flight of the reliable Noorduyn Norseman from Canada, created specifically for bush flying. The aircraft facilitated long-distance flights and delivery of fuel to isolated regions with cargo room designed to accommodate an industry standard 45-gallon fuel drum and up to ten passengers. Convenience was also a key feature with pilots having ease of cockpit entry and exit without having to climb over cargo. To date, many of the 900 manufactured Noorduyn Norseman are still being flown.

Today, using aircrafts such as the Beech Staggerwings and Bonanzas and even helicopters, bush flying now includes flying big game hunters, nature photographers, and archaeologists to exotic locations, on top of the now common flights to remote settlements for supply deliveries. The sturdy and versatile de Havilland Beaver is a huge favorite of bush pilots, with its adaptability in skis, floats and wheels usage.



The dangers that bush pilots brave have made them a no-no for insurance companies. However, it is the same dangers that so attract bush pilots to take up the challenge of venturing into the unknown. In bush flying, what you do not know may kill you, but what you may find certainly enriches and brings excitement to your life.