social capital. Stock of community's goodwill and trust acquired by an organization over the years, through its understanding and addressing of the concerns and priorities of the citizens. See also social value.
All electromagnetic radiation travels at the same speed (in a vacuum). Electromagnetic radiation travels very quickly. There is nothing which can travel faster. The speed is 300,000,000 m/s in a vacuum (that is 300 million metres per second-not easy to imagine!). Electromagnetic radiation can be thought of as particles or waves (the word radiation is also used for radioactivity).
EM Wave Speed. The speed of all electromagnetic waves in a vacuum is approximately 3*108 m/s, so important this speed is represented by the letter c. This is, according to our current understanding of the universe, the fastest possible speed anything in the universe can travel.