最大应变能理论

英文杂志-Physics

In the square outside the British Library in London is a sculpture of Sir Isaac Newton - The first man who asked why apples seem always to fall towards the centre of the earth. Maybe they chose it for the spot because it shows a great scientist at wo

发表于:2018-12-07 / 阅读(55) / 评论(0)

英文杂志-Magazine

Albert Einstein

Broadcast: Jan 22, 2003 By Marilyn Christiano VOICE ONE: This is Steve Ember. VOICE TWO: And this is Sarah Long with the VOA Special English program, Explorations. Today we tell about a scientist who

发表于:2018-12-07 / 阅读(54) / 评论(0)

VOA2003（上）-科技导航

EXPLORATIONS – Albert Einstein

EXPLORATIONS – Albert Einstein By Marilyn Christiano Broadcast: Wednesday, February 23, 2005 VOICE ONE: This is Steve Ember. VOICE TWO: And this is Sarah Long with the VOA Special English program, E

发表于:2019-01-28 / 阅读(68) / 评论(0)

Explorations

留美老师带你每日说英文第312期:卡路里是能量的单位

台湾籍旅美老师今天交给我们的句子是： A calorie is a unit of energy. It's technically the amount of energy needed to heat up a kilogram of water by 1 degree Celsius. 卡路里是能量的单位。他是一公斤的水上升摄氏一度

发表于:2019-02-14 / 阅读(42) / 评论(0)

留美老师带你每日说英文

Step by Step 3000 第2册 Unit5:Creative Minds(3)

Part 3. Scientists of the millennium(2). Keywords. idea, theory, discovery, method, establish, invention, change. Vocabulary. origin, species, by means of, organism, evolution, survive, reproduce, microorganism, Pasteurization, germ, resistance, inje

发表于:2019-02-15 / 阅读(74) / 评论(0)

Step by Step 3000 第二册

万物简史第246期:马斯特-马克的夸克(18)

This is counter to all expectations. It appears that the universe may not only be filled with dark matter, but with dark energy. Scientists sometimes also call it vacuum energy or, more exotically, quintessence. Whatever it is, it seems to be driving

发表于:2019-02-25 / 阅读(68) / 评论(0)

万物简史

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