- Sasquatch! Music Festival was an annual music festival held at The Gorge Amphitheatre in George, Washington, United States. It took place on Memorial Day weekend, running for three to four days. In 2018, it was announced that the festival was canceled indefinitely and would not return in 2019.
- Wave–particle duality (Wikipedia)
Wave–particle duality is the concept in quantum mechanics that quantum entities exhibit particle or wave properties according to the experimental circumstances. It expresses the inability of the classical concepts such as particle or wave to fully describe the behavior of quantum objects. During the 19th and early 20th centuries, light was found to behave as a wave, and then later discovered to have a particulate character, whereas electrons were found to act as particles, and then later discovered to have wavelike aspects. The concept of duality arose to name these contradictions.
