Physics

物理学知识积累

Physics

Physics covers a wide range of phenomena, from elementary particles (such as quarks, neutrinos, and electrons) to the largest superclusters of galaxies.

物理学是研究物质、能量的本质与性质的自然科学。由于物质与能量是所有科学研究的必须涉及的基本要素,所以物理学是自然科学中最基础的学科之一。物理学是一种实验科学,物理学者从观测与分析大自然的各种基于物质与能量的现象来找出其中的模式。

Vocabularies and Phrases

  • kinetic energy 动能
  • kine- 动
  • steam engine 蒸汽机
  • unaltered 不变的 unchanged
  • semiconductor 半导体
  • insulator 绝缘体

Articles and Sentences

The History of Waterpower(水力发电的历史)

Ever since the development of waterwheel, which occurred no later than 500 B.C., people have used moving water as a source of power.

The first water-powered machines were probably used to grind corn, and as technology advanced, waterwheels were used as the main source of power in many industries.

In the seventeenth and eighteenth centuries, design improvements in waterwheels led to discoveries of how to increase their efficiency and power output.

After declining in importance in the early 1800’s, waterpower came back into demand by the end of the century as a means to power electric plants and water turbines

Turbines(涡轮机) using Benoit Fourneyron’s design were eventually used to generate electric power.

The flow of the River Wey, on which the power station depended, was unreliable.

“Waterotor” harvests green energy in slow moving waters.

However, like many later experts, this one would have suffered from an inability to see into the future.

patent 专利

微观粒子

  • atom 原子
  • electron 电子
  • nucleus 原子核
  • neutron 中子
  • proton 质子
  • Ion 离子(带电原子)
  • dimension 容积
  • vibration 震动
  • -tron 子
  • distillation 蒸馏(still-安静的,仍然)
  • density 密度
  • friction 摩擦
  • magnet 磁铁
  • alloy 合金
  • brass 黄铜
  • bronze 青铜
  • spectrum 光谱(spect 看)
  • conductor 导体
  • medium 介质
  • optics 光学
  • emit 发出(mit- miss 派出去)
  • eject 喷射(ject 抛,投,射)
  • launch 发射
  • shrink 收缩
  • sink 下沉
  • ultra red telescopes 红外望远镜
  • binoculars 望远镜
  • electromagnetic wave 电磁波
  • radio wave 无线电波
  • ultrasonic wave 超声波
  • spectroscopy 光谱学