CHAT

PSYCHOLOGY

The child lives in a context which is itself neither simple nor unitary and which continuously affect his behavior and development. Patterns of stimulation come to him out of this context. In turn, by virtue of his own make-up, he selects from that context. At all times there is a reciprocal relation between the human organism and this bio social context. Because the child is limited in time, behavior becomes structured, and patterns develop both in the stimulus field and in his own response system. Some stimulus patterns become significant because they modify the developmental stream by affecting practice or social relations with others. Others remain insignificant because they do not affect this web of relations. In conclusion there are a unique interaction between the child and his environment shapes his personality, but why one pattern is significant and another is not is a crucial problem for child psychology.

AKHENATON

Akhenaton was the first historical figure to establish a religion that worshiped only one god. He believed that Aton, the sun god, was the sole creator whose spirit was omnipresent. Akhenaton also reformed art and literature, but when he died, his reforms ended.

THOMAS EDISON

Thomas Edison (1847-1931), American inventor, one of the greatest inventors of all time. Edison began to work at an early age and continued to work right up until his death. Throughout his prolific career as an inventor, he was well known for his focus and determination. During his career Edison patented more than 1,000 inventions, including the electric light, the phonograph, and the motion-picture camera. These three inventions gave rise to giant industries—electric utilities, phonograph and record companies, and the film industry—thus changing the work and leisure habits of people throughout the world. The period from 1879 to 1900, when Edison produced and perfected most of his devices, has been called the Age of Edison.

RAINBOW

Rainbow, arch of light exhibiting the spectrum colors in their order, caused by drops of water falling through the air. It is seen usually in the sky opposite to the sun at the close of a shower and also in the spray of waterfalls. In the brightest or primary bow, often the only one seen, the colors are arranged with the red outside. Above the perfect bow is a secondary bow, in which the colors are arranged in reverse order; this bow is dimmer, because of a double reflection within the drops.

When the sunlight enters a raindrop it is refracted, or bent, by and reflected from the drop in such a way that the light appears as a spectrum of colors. The colors can be seen, however, only when the angle of reflection between the sun, the drop of water, and the observer's line of vision is between 40° and 42°.

When the sun is low in the sky the rainbow appears relatively high; as the sun rises higher, the rainbow appears lower in the sky, maintaining the critical 40°- to 42°-angle. When the sun is more than 42° above the horizon no rainbow can be seen because the required angle passes over the head of the observer.

SPHINX

Sphinx, in ancient Egypt, the stone figure of a lion in a resting posture, the upper part of the body being that of a human, usually male rather than female. In Egypt sphinxes appear to have been set up along avenues that formed the approaches to temples.

The most famous of all Egyptian sphinxes is the Great Sphinx at Giza, near the pyramids. It guards the entrance to the Nile Valley. With the exception of the paws, it was carved from one block of stone and measures about 20 m (about 66 ft) high and about 73 m (about 240 ft) long. The statue, which probably dates from around 2500 BC, was intended to represent the Egyptian god Horus. In some Egyptian sphinxes the upper part of the body is that of a ram, and the creature is known as a Criosphinx. If a sphinx has the upper body of a falcon, it is known as a Hieracosphinx.

Both the legend and the figure of the Sphinx were probably introduced into Greece from Egypt, but the nature of the Sphinx became modified in Greek mythology and art. In Greek mythology, the Sphinx was a monster with the head and breasts of a woman, the body of a lion, and the wings of a bird. Lying crouched on a rock, she accosted all who were about to enter the city of Thebes by asking them a riddle, “What is it that has four feet in the morning, two at noon, and three at night?” If they could not solve the riddle, she killed them. When the hero Oedipus solved the riddle by answering, “Man, who crawls on four limbs as a baby, walks upright on two as an adult, and walks with the aid of a stick in old age,” the Sphinx killed herself. For ridding them of this terrible monster, the Thebans made Oedipus their king.