have dyslexia, and stuttering. Studies seemed to show that lefties were more prone to various physical illnesses, to die sooner, and to have more accidents and injuries.The original gloomy research data is now under question. It seems that left-handedness was more likely to shorten life in people born before 1890, but not since. The tendency toward having accidents is a cloudy issue, too, for ...
t stay in existence forever. There is a period in which they are born and begin to glow, and a period in which they die out and cease glowing.There may, in other words, be a nearly infinite number of stars in the universe, but they don't give off light for an infinite length of time.And what light they do give off has not yet had time to fill the universe.Wesson's calculations show that this ...
advantage, for they can eat what others won't touch, which means a large food supply.Glendinning and Brower studied a mouse, Peromyscus melanotis, in Central Mexico, which apparently is not in the least bothered by the cardiac glycosides that would kill any other small vertebrate. These mice gather about the places where the monarchs congregate and eat their fill. Other mice, closely related ...
온통 이 문제를 최대화제로 삼은 적이 있다. 프랑스의 르몽드(Le Monde) 독일의 디 자이트(Die Zeit) 미국의 뉴스위크지가 86년 7월에 이 토픽을 기사 또는 논평으로 다룸으로써 그 열기를 더욱 부채질했다. 요컨대 그 원리는 남자의 복강(腹腔)벽에 시험관에서 수정시킨 수정란을 착상시키고 일정한 ...
building, land erosion, earthquakes, volcanic eruptions and so on. On top of all that, most forms of life don't die under conditions that result in fossilization. Therefore, many puzzles remain in our attempts to make sense out of the fossil record.For instance, mammals developed from reptiles on land as long as 200 million years ago. Since then, almost all types of mammals have continued to ...
rotting ever since life has existed. The materials produced can be handled by living things, or we would all have died out long ago.With plastics, however, products may be formed that aren't composed of natural substances. They may be toxic, or carcinogenic, or in other ways very damaging.Well, then, what do we do? There are those who say that recycling plastics or making them ...
8살이었을 때는 당대 최고의 사상가, 철학자, 과학자들이 함께 집필한 '백과전서'(Encyclopédie)의 제1권이 발간되던 해였다.인간의 자유·조엄과 만인의 평등을 추구하던 계몽사조에서 흐름속에서, 라보아제는 우수한 성적으로 정규교육을 마치고 법학을 전공했다. 그러나 곧 그의 가족과 친구들은 ...