- Paramount leader (Chinese: 最高领导人; pinyin: Zuìgāo Lǐngdǎorén; lit. ‘highest leader’) is an informal term for the most important political figure in the People’s Republic of China (PRC). The paramount leader typically controls the Chinese Communist Party (CCP) and the People’s Liberation Army (PLA), often holding the titles of CCP General Secretary and Chairman of the Central Military Commission (CMC). The state representative (president) or head of government (premier) are not necessarily paramount leader—under China’s party-state system, CCP roles are politically more important than state titles.
- Double-slit experiment (Wikipedia)
In modern physics, the double-slit experiment demonstrates that light and matter can satisfy the seemingly incongruous classical definitions for both waves and particles. This ambiguity is considered evidence for the fundamentally probabilistic nature of quantum mechanics. This type of experiment was first performed by Thomas Young in 1801, as a demonstration of the wave behavior of visible light. In 1927, Davisson and Germer and, independently George Paget Thomson and his research student Alexander Reid demonstrated that electrons show the same behavior, which was later extended to atoms and molecules. Thomas Young’s experiment with light was part of classical physics long before the development of quantum mechanics and the concept of wave–particle duality. He believed it demonstrated that Christiaan Huygens’ wave theory of light was correct, and his experiment is sometimes referred to as Young’s experiment or Young’s slits.