Karl Wilhelm Rontgen (1845-1923) astounded people with the first x-rays in 1895;this was followed three years later by the discovery of radium by Pierre and Marie Curie. But who were they? In 1894, Marie and Pierre Curie met while studying in Paris. Their marriage on 25th July 1895 ...
When were terrestrial planets discovered? When did Mars become a planet? When was the planet Pluto discovered? When was the first extrasolar planet discovered? When was the first exoplanet discovered? When was Saturn discovered? When was Alpha Centauri discovered? When was the first rogue planet ...
X-rays were first discovered by a German scientist Wilhelm Konrad Rontgen in 1895 almost by accident. He and several other scientists were experimenting with passing electric currents through certain gases in a special glass tube from which the air had been moved. One day Rontgen noticed that eve...
B. Over 200 years ago.C. More than 65 million years ago.D. Almost 200 million years ago. 相关知识点: 试题来源: 解析 A. Almost 200 years ago. 第一块被科学家确认为恐龙化石的发现是在1822年,距今大约200年。因此,正确答案是A. Almost 200 years ago.反馈 收藏 ...
Unfortunately I had a rude __55__ as I discovered that others did not view me in the way I had come to view myself. All eyes were upon me yet no one dared to make eye contact. Their efforts to __56__ my eyes forced me to realize they saw only my missing legs. Mothers __57...
62. When were X-rays discovered?63. Whose hand was in the first X-ray photo?64. Why did Ronggen name the ray "X-ray"?65. What do you think of Ronggen? And why? 相关知识点: 试题来源: 解析 62. X射线是在1895年被发现的。 63. 在第一张X射线照片中,是伦琴妻子的手。 64. 伦琴将...
were discovered(discover)at Hemudu Cultural Ruins (河姆渡文化遗址),a Neolithic (新石器时代的) cultural site (4) located(locate) in eastern China's Zhejiang province.Straw weaving is a method of manufacturing daily items or artworks.It was listed as a national intangible cul...
From there, I flew to Australia and got my first job. This position wasn't an office job or anything fancy. I painted houses in the sun for 12 hours a day. I’m telling you this story not to encourage you to have a similar experience, but to inspire you to do as much as you ...
MALE PROFESSOR: OK, we've been discussing the planets in our solar system, and how some of the ones farthest from the Sun were discovered. Well, today I'd like to turn to what are called exoplanets, and how researchers detect them. Maria?FEMALE STUDENT: Exoplanets are planets that orbit...
But in 1610 when Galileo first pointed a telescope at the sky he discovered jupiter's four large moons.point 在此处的意思不是“指出”，而是“指向”；point sth. at .. 意思是“把…指向/瞄准某处”应该这样翻译：但是在1610年，当伽利略首次把望远镜对准天空的时候，他发现了四个巨大的木星...