History of timekeeping Ever since man first noticed the regular movement of the Sun and the stars, we have wondered about the passage of time. Prehistoric people first recorded the phases of the Moon some 30,000 years ago, and recording time has been a way by which humanity has observed the heavens and represented the …
The dugong: sea cow Dugongs are herbivorous mammals that spend their entire lives in the sea. Their close relatives the manatees also venture into or live in freshwater. Together dugongs and manatees make up the order Sirenia or sea cows, so-named because dugongs and manatees are thought to have given rise to the myth of …
The Bite That Heat Scientists are unlocking the medical potential of venom. A Michael decided to go for a swim. He was on vacation with his family in Guerrero, Mexico, and it was hotter than blazes. He grabbed his swimming trunks from where they’d been drying on a chair, slid them on, and jumped into the …
The History of Dolls Dolls have been a part of humankind since prehistoric times. Used to depict religious figures or used as playthings, early dolls were probably made from primitive materials such as clay, fur, or wood. No dolls have survived from prehistoric times, although a fragment of an alabaster doll with movable arms from the Babylonian period was recovered. Dolls constructed of …
The history of tea The story of tea begins in China. According to legend, in 2737 BC, the Chinese emperor Shen Nung was sitting beneath a tree while his servant boiled drinking water, when some leaves from the tree blew into the water. Shen Nung, a renowned herbalist, decided to try the infusion that his …
The Plan to Bring an Asteroid to Earth Scientists and engineers met last week at Caltech to discuss the possibility of capturing an asteroid and placing it in orbit near Earth to use as a base for manned space missions further into the solar system. PASADENA, Calif. — Send a robot into space. Grab an …
Personality and appearance When Charles Darwin applied to be the “energetic young man” that Robert Fitzroy, the Beagle’s captain, sought as his gentleman companion, he was almost let down by a woeful shortcoming that was as plain as the nose on his face. Fitzroy believed in physiognomy—the idea that you can tell a person’s character …
Space Travel and Health A. Space biomedicine is a relatively new area of research both in the USA and in Europe. Its main objectives are to study the effects of space travel on the human body, identifying the most critical medical problems, and finding solutions to those problems. Space biomedicine centers are receiving increasing direct …
Development of Adolescence (The Adolescence) A The American Academy of Pediatrics recognizes three stages of adolescence. These are early, middle and late adolescence, and each has its own developmental tasks. Teenagers move through these tasks at their own speed depending on their physical development and hormone levels. Although these stages are common to all teenagers, …
Antarctic Research AA little over a century ago, men of the ilk of Scott, Shackleton and Mawson battled against Antarctica’s blizzards, cold and deprivation. In the name of Empire and in an age of heroic deeds they created an image of Antarctica that was to last well into the 20th century – an image of …
