- In mathematics, the Riemann hypothesis is the conjecture that the Riemann zeta function has its zeros only at the negative even integers and complex numbers with real part 1/2. Many consider it to be the most important unsolved problem in pure mathematics. It is of great interest in number theory because it implies results about the distribution of prime numbers. It was proposed by Bernhard Riemann (1859), after whom it is named.
- Chuckanut Mountains (Wikipedia)
The Chuckanut Mountains (from “Chuckanut”, an indigenous word meaning “long beach far from a narrow entrance”), or Chuckanuts, are located along the Washington state coast of the Salish Sea, just south of Bellingham, Washington. Part of the Cascade Range, they are the only place where the Cascades come west down to meet the sea. The Chuckanuts are considered to be a part of the Puget Lowland Forest Ecoregion.