- Lake Phalen (Wikipedia)
Lake Phalen is an urban lake located in Saint Paul, Minnesota and in its suburb of Maplewood. It is one of the largest lakes in Saint Paul and is the centerpiece of the Phalen Regional Park System. The lake drains into the Mississippi River after traveling through Phalen Creek. The lake and surrounding 494-acre (2.00 km2) park receive around 500,000 visitors each year.
- Quantum mechanics (Wikipedia)
Quantum mechanics is a fundamental theory in physics that describes the behavior of nature at the scale of atoms and subatomic particles. It is the foundation of all quantum physics including quantum chemistry, quantum field theory, quantum technology, and quantum information science.