Wednesday, April 22, 2015

Holy Week Observence

The Way I Observence Holy Week:

How i observe holy week with my family was praise the lord wih so many kind blessings with words that the lord would love. my family likes to pray before we eat because we would like to give thanks for the food what he gives us every day. my family appreciate what people give to us or the lord gives to us.

How i observe holy week with my friends:  That we Observe Jesus’ crucifixion by reading the Biblical account together. Sing old hymns of the Crucifixion and the Cross: “Were You There When They Crucified My Lord?” “The Old Rugged Cross,” “When I Survey the Wondrous Cross.” Most Catholic churches offer Stations of the Cross, fourteen plaques circling the interior walls which depict the final hours of Jesus’ life. You may want to visit and contemplate these, one by one.

How to observe holy week with eveyone:  For an in-school celebration, reading Matthew 2:1-11 together. an that with a few friends, we can put together costumes and act out Jesus’ arrival in Jerusalem.

Thats how i observe holy with my family and friends!!

What Is Light

Light: An Electromagnetic Wave

Light is an different type of energy that traavels as a wave. But also light is an different other kind of waves. There are different kinds of waves such as Sound Waves and Water waves. an that it must travel throught matter. An that light does not matter require matter through which to travel. Also light is an electromagentic wave.

Electromagentic wave is a wave that can travel through empty spaces or matter and consists of changing eletric and magnetic field. Light is part of the electromagnetic spectrum, which ranges from radio waves to gamma rays. Electromagnetic radiation waves, as their names suggest are fluctuations of electric and magnetic fields, which can transport energy from one location to another. Visible light is not inherently different from the other parts of the electromagnetic spectrum with the exception that the human eye can detect visible waves. Electromagnetic radiation can also be described in terms of a stream of photons which are massless particles each travelling with wavelike properties at the speed of light. A photon is the smallest quantity of energy which can be transported and it was the realization that light.

Matter is composed of atoms, ions or molecules and it is light’s interaction with matter which gives rise to the various phenomena which can help us understand the nature of matter. The atoms, ions or molecules have defined energy levels usually associated with energy levels that electrons in the matter can hold. Light can be generated by the matter or a photon of light can interact with the energy levels in a number of ways.

Fields exsit around certain objects and can exert force on another object without touching that object. For example, Earth suface of a gavitational field. A field pulls you and all things toward earth. But keep in mind that this field are like all fields is not made out of matter. 

Tuesday, April 21, 2015

Detecting Sound


Sound is a Pressure Wave


Sound is that results from the back and forth vibration of the particles of the medium through which the sound wave is moving. If a sound wave is moving from left to right through air, then particles of air will be displaced both rightward and leftward as the energy of the sound wave passes through it. The motion of the particles is parallel to the direction of the energy transport. This is what characterizes sound waves.



Compressions and Rarefactions

A vibrating tuning fork is capable of creating such a longitudinal wave. As the tines of the fork vibrate back and forth, they push on neighboring air particles. The forward motion of a tine pushes air molecules horizontally to the right and the backward retraction of the tine creates a low-pressure area allowing the air particles to move back to the left.

Because of the longitudinal motion of the air particles, there are regions in the air where the air particles are compressed together and other regions where the air particles are spread apart. These regions are known as compressions and rarefactions respectively. The compressions are regions of high air pressure while the rarefactions are regions of low air pressure. The diagram below depicts a sound wave created by a tuning fork and propagated through the air in an open tube. The compressions and rarefactions are labeled.

The wavelength of a wave is merely the distance that a disturbance travels along the medium in one complete wave cycle. Since a wave repeats its pattern once every wave cycle, the wavelength is sometimes referred to as the length of the repeating patterns - the length of one complete wave. For a transverse wave, this length is commonly measured from one wave crest to the next adjacent wave crest or from one wave trough to the next adjacent wave trough. Since a longitudinal wave does not contain crests and troughs, its wavelength must be measured differently. A longitudinal wave consists of a repeating pattern of compressions and rarefactions. Thus, the wavelength is commonly measured as the distance from one compression to the next adjacent compression or the distance from one rarefaction to the next adjacent rarefaction.


What is a Pressure Wave?

Since a sound wave consists of a repeating pattern of high-pressure and low-pressure regions moving through a medium, it is sometimes referred to as a pressure wave. If a detector, whether it is the human ear or a man-made instrument, were used to detect a sound wave, it would detect fluctuations in pressure as the sound wave impinges upon the detecting device. At one instant in time, the detector would detect a high pressure; this would correspond to the arrival of a compression at the detector site. At the next instant in time, the detector might detect normal pressure. And then finally a low pressure would be detected, corresponding to the arrival of a rarefaction at the detector site. The fluctuations in pressure as detected by the detector occur at periodic and regular time intervals. In fact, a plot of pressure versus time would appear as a sine curve. The peak points of the sine curve correspond to compressions; the low points correspond to rarefactions; and the "zero points" correspond to the pressure that the air would have if there were no disturbance moving through it. The diagram below depicts the correspondence between the longitudinal nature of a sound wave in air and the pressure-time fluctuations that it creates at a fixed detector location.






The above diagram can be somewhat misleading if you are not careful. The representation of sound by a sine wave is merely an attempt to illustrate the sinusoidal nature of the pressure-time fluctuations. Do not conclude that sound is a transverse wave that has crests and troughs. Sound waves traveling through air are indeed longitudinal waves with compressions and rarefactions. As sound passes through air (or any fluid medium), the particles of air do not vibrate in a transverse manner. Do not be misled - sound waves traveling through air are longitudinal waves.

How It Relates to the ear?
 It relates that you can hear differrent sound with your ear with loud sounds and low sounds. but it can hear different sound now thats our example about the human ear detecting sound..

How The Human Ear Works


How does normal hearing work?

The three parts of the ear anatomy are the outer ear, the middle ear and the inner ear. The inner ear is also called the cochlea. (‘Cochlea’ means ‘snail’ in Latin; the cochlea gets its name from its distinctive coiled up shape.)
The outer ear consists of the pinna, ear canal and eardrum
The middle ear consists of the ossicles and ear drum
The inner ear consists of the cochlea, the auditory (hearing) nerve and the brain



Sound waves enter the ear canal and make the ear drum vibrate. This action moves the tiny chain of bones in the middle ear. The last bone in this chain ‘knocks’ on the membrane window of the cochlea and makes the fluid in the cochlea move. The fluid movement then triggers a response in the hearing nerve.






What happens when you have problems with hearing?

When your hearing is working normally, information is being passed through the different parts of the ear to the brain. The type of hearing problem you may have depends on which part of the ear is not responding well.

Outer ear or middle ear problems lead to inefficient transfer of sound. The cochlea is still working but may not receive enough information. The problem is that the sound is not being conducted well enough. Conductive deafness can be caused by things such as an ear infection, a hole in the eardrum or otosclerosis.

An inner ear problem means that sound arrives at the cochlea, but is then not fully passed on to the hearing nerve. Also it is possible that the hearing nerve itself is not passing on information well, or fails to pass on the sound at all Sensorineural hearing loss can be caused by things such as old age,  with loud noise.

Monday, April 20, 2015

Pope John XX111



POPE JOHN XXIII

1958-1963



When on October 20, 1958 the cardinals, assembled in conclave, elected Angelo Roncalli as pope many regarded him, because of his age and ambiguous reputation, as a transitional pope, little realizing that the pontificate of this man of 76 years would mark a turning point in history and initiate a new age for the Church. He took the name of John in honor of the precursor and the beloved disciple but also because it was the name of a long line of popes whose pontificates had been short.

Angelo Giuseppe Roncalli, the third of thirteen children, was born on November 25, 1881 at Sotto il Monte of a family of sharecroppers. He attended elementary school in the town, was tutored by a priest of Carvico, and at the age of twelve entered the seminary at Bergamo. A scholarship from the Cerasoli Foundation enabled him to go on to the Apollinaris in Rome where he studied under among others Umberto Benigni, the Church historian. He interrupted his studies for service in the Italian Army but returned to the seminary, completed his work for a doctorate in theology, and was ordained in 1904. Continuing his studies in canon law he was appointed secretary to the new bishop of Bergamo, Giacomo Radini-Tedeschi. Angelo served this social-minded prelate for nine years, acquiring first-hand experience and a broad understanding of the problems of the working class. He also taught apologetics, church history, and patrology.

With the entry of Italy into World War I in 1915 he was recalled to military service as a chaplain. On leaving the service in 1918 he was appointed spiritual director of the seminary, but found time to open a hostel for students in Bergamo. It was at this time also that he began the research for a multi-volume work on the episcopal visitation of Bergamo by St. Charles Borromeo, the last volume of which was published after his elevation as pope.

In 1921 he was called to Rome to reorganize the Society for the Propagation of the Faith. Nominated titular archbishop of Areopolis and apostolic visitator to Bulgaria, he immediately concerned himself with the problems of the Eastern Churches. Transferred in 1934 to Turkey and Greece as apostolic delegate, he set up an office in Istanbul for locating prisoners of war. In 1944 he was appointed nuncio to Paris to assist in the Church's post-war efforts in France, and became the first permanent observer of the Holy See at UNESCO, addressing its sixth and seventh general assemblies in 1951 and 1952. In 1953 he became cardinal-patriarch of Venice, and expected to spend his last years there in pastoral work. He was correcting proofs of the synodal Acts of his first diocesan Synod when he was called to Rome to participate in the conclave that elected him pope.

In his first public address Pope John expressed his concern for reunion with separated Christians and for world peace. In his coronation address he asserted "vigorously and sincerely" that it was his intention to be a pastoral pope since "all other human gifts and accomplishments learning, practical experience, diplomatic finesse can broaden and enrich pastoral work but they cannot replace it." One of his first acts was to annul the regulation of Sixtus IV limiting the membership of the College of Cardinals to 70; within the next four years he enlarged it to 87 with the largest international representation in history. Less than three months after his election he announced that he would hold a diocesan synod for Rome, convoke an ecumenical council for the universal Church, and revise the Code of Canon Law. The synod, the first in the history of Rome, was held in 1960; Vatican Council II was convoked in 1962; and the Pontifical Commission for the Revision of the Code was appointed in 1963.

His progressive encyclic was issued in 1961 to commemorate the anniversary of Leo XIII's, advocating human freedom and dignity as the basis for world order and peace, came out in 1963. He elevated the Pontifical Commission for Cinema, Radio, and Television to curial status, approved a new code of rubrics for the Breviary and Missal, made notable advances in ecumenical relations by creating a new Secretariat for Promoting Christian Unity and by appointing the first representative to the Assembly of the World Council of Churches held in New Delhi (1961). In 1960 he consecrated fourteen bishops for Asia, Africa, and Oceania. The International Balzan Foundation awarded him its Peace Prize in 1962.

Since his death on June 3, 1963, much has been written and spoken about the warmth and holiness of the beloved Pope John. Perhaps the testimony of the world was best expressed by a newspaper drawing of the earth shrouded in mourning with the simple caption, "A Death in the Family."