- Woodburn Falls (waterfallsnorthwest.com)
Of the three modest waterfalls Lacamas Park harbors, Woodburn Falls is the most forgettable. Seasonal Woodburn Creek, sure to run dry by June, splashes over a ledge amid rather thick deciduous growth that provides a modest wilderness feel. While when viewed up close the falls appear to drop about 20 feet, lidar data indicates its total drop to be closer to 40 feet - the upper half of the falls is simply out of view due to foreshortening and the close proximity of the trail to the base of the falls.
- Hypergiant (Wikipedia)
A hypergiant (luminosity class 0, Ia-0 or Ia+) is a very rare type of star that has an extremely high luminosity, mass, size and mass loss because of its extreme stellar winds. The term hypergiant is defined as luminosity class 0 (zero) in the MKK system. However, this is rarely seen in literature or in published spectral classifications, except for specific well-defined groups such as the yellow hypergiants, RSG (red supergiants), or blue B(e) supergiants with emission spectra. More commonly, hypergiants are classed as Ia-0 or Ia+, but red supergiants are rarely assigned these spectral classifications. Astronomers are interested in these stars because they relate to understanding stellar evolution, especially star formation, stability, and their expected demise as supernovae. Notable examples of hypergiants include the Pistol Star, a blue hypergiant located close to the Galactic Center and one of the most luminous stars known; Rho Cassiopeiae, a yellow hypergiant that is one of the brightest to the naked eye; and Mu Cephei (Herschel’s “Garnet Star”), one of the largest and brightest stars known.