Archaeology Archaeology is a source of history, not just a humble auxiliary discipline. Archaeological data are historical documents in their own right, not mere illustrations to written texts. Just a
Mimicry in Plants Plant adaptations can be remarkably complex. Certain species of orchids, for instance, imitate female bees, other plants look and smell like dead animals, and still others have the a
The Historical Significance of American Revolution The ways of history are so intricate and the motivations of human actions so complex that it is always hazardous to attempt to represent events cover
Women in Colonial North America The status of women in colonial North America has been well studied and described and can be briefly summarized. Throughout the colonial period there was a marked short
MARS Mars According to the best evidence gathered by space probes and astronomers, Mars is an inhospitable planet, more similar to Earth's Moon than to Earth itself-a dry,stark,seemingly lifeless worl
Children's Numerical Skills People appear to be born to compute. The numerical skills of children develop so early and so inexorably that it is easy to imagine an internal clock of mathematical maturi
The Origin of Refrigerators By the mid-nineteenth century, the term"icebox"had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United Sta
The Nobel Academy For the last 82 years, Sweden's Nobel Academy has decided who will receive the Nobel Prize in Literature, thereby determining who will be elevated from the great and the near great t
Oil Refining An important new industry, oil refining, grew after the Civil War. Crude oil, or petroleum -- a dark, thick ooze from the earth -- had been known for hundreds of years, but little use had
Television Television -- the most pervasive and persuasive of modern technologies,marked by rapid change and growth --is moving into a new era,an era of extraordinary sophistication and versatility, w
引言： 人该年轻时就年轻，该年老时就年老，这是与自然同步，这就是和谐。和谐就是美，反之就是丑。 A person, like a commodity, needs packaging. But going too far is absolutely undesirable.A young person, especially a female, radiant with beauty and fu
When Henry ford decided to produce his famous v-8 motor, he chose to build an engine with the entire eight cylinders cast in one block, and instructed his engineers to produce a design in one for the
Success means different things for different people. Some may equate it with fame, some with wealth and still some with accomplishments. For me, it means fulfilling one's dreams. Whatever your dreams
编者按： 你有信仰就年轻，疑惑就年老；有自信就年轻，畏惧就年老；有希望就年轻，绝望就年老；岁月使你皮肤起皱，但是失去了热忱，就损伤了灵魂。 —— 卡耐基 Ambition It is not difficult to imagine a world short of ambition. It would probably be a kinder world: with out demands, w
My one true friend ——Germaine A true friend is always there for you. A person who will help, with all your problems. The one whom you can trust, With all your secrets. And the one who cheer you up whe
How happy is the little stone ——Emily Dickinson How happy is the little stone. That rambles in the road alone, And doesn't care about careers, And exigencies never fears—— Whose coat of elemental brow
Stopping by Woods Whose woods these are I think I know, His house is in the village though. He will not see me stopping here, To watch his woods fill up with snow. My little horse must think it queer,
Freedom parrot 呼喊自由的鹦鹉 A man, a great man, a fighter for freedom was traveling in the mountains. He stayed in a caravans① for the night. He was amazed that in the caravans there was a beautiful parrot
Devote some of your leisure, I repeat, to cultivating a love of reading good books. Fortunate indeed are those who contrive to make themselves genuine book-lovers. For book- lovers have some noteworth
