Larch Mountain Backpacking - Oregon, United States

Larch Mountain Backpacking

We started on Friday around 7 pm and keep walking until the sun set around 8.10. Found a nice camping spot next to the river and setup the tents. Thanks to the tall trees and no moon, the camp site was pitch black making it a different experience. Had our dinner and went to sleep around 10.30 pm. Woke up at 4.30, had breakfast and started walking up. The weather and the trail were nice. There was snow after 3500 ft but it was okay. We reached the Sherard's point at Larch Mountain at 8.30 am. The view was worth the climb. Except Mt. Rainier, all major mountains were visible (Mt. Hood, Mt. Jefferson, Mt. St. Helens and Mt. St Adams)

Mt. Hood from the Larch Mountain Summit

Our camping ground:

Diffraction from Double Slits (Young's Double Slits)

The double slit diffraction is illustrated via the use of finite-difference time-domain (FDTD) simulation. Two sets of double slits with different widths and a single slit - for comparison - are illuminated by normally incident plane waves. When the impinging plane waves reach the slits, they are diffracted into a series of circular waves. In the case of double slits, constructive and destructive interferences create dark (null) and bright spots. Diffraction is basically the phenomenon involving the bending of waves around obstacles and the spreading out of the waves past small openings. Huygen's Principle states that every point on a wavefront acts as a source of tiny wavelets moving forward with the same speed as the wave and the wavefront is the surface tangent to these wavelets. 

Keywords:

Beugung, Difracción, Diffrazione, Kırınım, 回折, Дифракция, Diffractie, Difração, 衍射, Dyfrakcja, Diffraktion, Interferenz, Interferencia, Young's slit,

Mount St. Helens Walk-up

We started around 6.30 am after camping overnight. After walking continuously around 6 hours we reached the summit around 12.30 pm. We reached back the Marble mountain sno-park at 4.00 pm.

Mount St. Helens Walk-up

Mount Rainier and Mt. St. Helen's Crater Rim

Climbers on the crater rim.

Mt. Rainier and Spirit Lake

Smoke coming from the Mt. St. Helen's crater