companydirectorylist.com  全球商业目录和公司目录
搜索业务,公司,产业 :


国家名单
美国公司目录
加拿大企业名单
澳洲商业目录
法国公司名单
意大利公司名单
西班牙公司目录
瑞士商业列表
奥地利公司目录
比利时商业目录
香港公司列表
中国企业名单
台湾公司列表
阿拉伯联合酋长国公司目录


行业目录
美国产业目录














  • Magnetism | Definition, Examples, Physics, Facts | Britannica
    magnetism, phenomenon associated with magnetic fields, which arise from the motion of electric charges This motion can take many forms It can be an electric current in a conductor or charged particles moving through space, or it can be the motion of an electron in an atomic orbital
  • MAGNETIC Definition Meaning - Merriam-Webster
    The meaning of MAGNETIC is possessing an extraordinary power or ability to attract How to use magnetic in a sentence
  • What is magnetism? Facts about magnetic fields and magnetic force
    Magnetism is a force of nature produced by moving electric charges Sometimes these motions are microscopic and inside of a material known as magnets Magnets, or the magnetic fields created by
  • MAGNETIC | English meaning - Cambridge Dictionary
    MAGNETIC definition: 1 (of a metal object or material) able to attract objects or materials containing iron or steel… Learn more
  • What Is Magnetism? Definition, Examples, Facts - ThoughtCo
    Magnetism is a force caused by moving electric charges and can both attract and repel Different materials show magnetism based on their electrons, with types such as diamagnetism and ferromagnetism Some living organisms can sense magnetic fields, a process known as magnetoception, using biomagnetism
  • Magnetism - Education | National Geographic Society
    Magnetism is the force exerted by magnets when they attract or repel each other Magnetism is caused by the motion of electric charges Every substance is made up of tiny units called atoms Each atom has electrons, particles that carry electric charges Spinning like tops, the electrons circle the nucleus, or core, of an atom
  • Physicists observe a new form of magnetism for the first time
    The new magnetic state is a mash-up of two main forms of magnetism: the ferromagnetism of everyday fridge magnets and compass needles, and antiferromagnetism, in which materials have magnetic properties at the microscale yet are not macroscopically magnetized Now, the MIT team has demonstrated a new form of magnetism, termed “p-wave
  • Magnetism: Definition, Types, Properties How They Work (W . . . - Sciencing
    Magnetism is one aspect of the the fundamental electromagnetic force It describes phenomena and forces associated with magnets or magnetic objects All magnetic fields are generated by moving charge or changing electric fields This is why the phenomena of electricity and magnetism are referred to collectively as electromagnetism




企业名录,公司名录
企业名录,公司名录 copyright ©2005-2012 
disclaimer |iPhone手机游戏讨论 |Android手机游戏讨论 |海外商家点评 |好笑有趣影片图片