Monday, January 28, 2008

Relief print

Relief print is an image fashioned by a printmaking process, such as Stencil printing, where the areas of the matrix (plate or block) that are to show printed black (typically) are on the original surface; the part of the matrix that are to be blank (white) having been cut away, or otherwise removed. Printing the image is therefore a relatively simple matter of inking the face of the matrix and brings it in firm contact with the paper; a printing-press may not be needed as the back of the paper can be rubbed or pressed by hand with a simple tool. It's the BEST way to repeat an IMAGE several times without messing up.

Monday, January 21, 2008

Education

It is extensively accepted that the process of education is lifelong. Studies have exposed that the child is educated by the experiences it is exposed to in the womb even before it is born.
Individuals receive relaxed education from a variety of sources. Family members, peers, books and mass media have a strong on the informal education of the individual.
Education also say about the discipline, a body of theoretical and applied research that draws on other disciplines such as psychology, philosophy, computer science, linguistics, neuroscience, sociology and anthropology.

Wednesday, January 16, 2008

Cricket bat and Shape

A cricket bat is worn by batsmen in the sport of cricket. It is typically made of willow wood. This specialized bat is shaped something like a paddle, consisting of a padded handle similar to - but sturdier than - that of a tennis racquet, which is typically cylindrical in shape. This widens into the blade of the bat, a wider wooden block flat on one side and with a V-shaped edge on the other to provide greater air flow in the follow through and greater strength to the over-all bat. The flat side (the front of the bat) is used to punch the ball. The point at which the handle widens into the blade is known as the shoulder of the bat, and the base of the blade is known as the toe of the bat.

Monday, January 07, 2008

Pitch

In music, pitch is the psychological associate of the fundamental frequency of a note. The note an above middle C played on any instrument is perceived to be of the same pitch as a pure tone of 440 Hz, but does not essentially contain a partial having that frequency. Furthermore, a slight change in frequency need not lead to a perceived change in pitch, but a change in pitch implies a change in frequency. In fact, the just perceptible difference is about five cents, but varies over the range of hearing and is more precise when the two pitches are played at the same time. Like other human stimuli, the perception of pitch also can be explained by the Weber-Fechner law.

Pitch also depends on the amplitude of the sound, especially at low frequencies. For instance, a low bass note will sound lower in pitch if it is louder. Like other senses, the comparative perception of pitch can be fooled, resulting in "audio illusions". There are several of these, such as the tritone paradox, but most especially the Shepard scale, where a continuous or discrete sequence of specially formed tones can be made to sound as if the sequence continues ascending or descending forever.

Thursday, January 03, 2008

Crystal

In chemistry and mineralogy, a crystal is a solid in which the element atoms, molecules, or ions are packed in a frequently ordered, repeating pattern extending in all three spatial dimensions.

The word crystal originates from the Greek word κρύσταλλος (krystallos) meaning clear ice, as it was thoughts to be an especially solid form of water. Citation needed: The word once referred mainly to quartz, or "rock crystal".

Most metals encounter in everyday life is polycrystals. [Citation needed] Crystals are often symmetrically intergrown to form crystal twins.