- Speed of light (Wikipedia)
The speed of light in vacuum, commonly denoted c, is a universal physical constant that is important in many areas of physics. The speed of light c is exactly equal to 299,792,458 metres per second (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour). According to the special theory of relativity, c is the upper limit for the speed at which conventional matter or energy (and thus any signal carrying information) can travel through space.
- Mahatma Gandhi (Wikipedia)
Mohandas Karamchand Gandhi (/ˈɡɑːndi, ˈɡændi/; GAHN-dee; 2 October 1869 – 30 January 1948) was an Indian lawyer, anti-colonial nationalist and political ethicist. He is widely acknowledged as one of the 20th century’s most influential people, who employed nonviolent resistance to lead the successful campaign for India’s independence from British rule, and to later inspire movements for civil rights and freedom across the world. The honorific Mahātmā (Sanskrit: “great-souled”, “venerable”), first applied to him in 1914 in South Africa, is now used throughout the world.