Elastic fiber. Elastic fibers (or yellow fibers) are bundles of proteins (elastin) found in extracellular matrix of connective tissue and produced by fibroblasts and smooth muscle cells in arteries. These fibers can stretch up to 1.5 times their length, and snap back to their original length when relaxed.
Some people think Alaska has less sunlight than other places. The opposite is true. Averaged over an entire year, Alaska gets 10-17 minutes more daylight per day than the rest of the country. If you include civil twilight, Alaska gets 40 minutes more light on average than the rest of the country. Even during those months of the year when Alaska has the same daylight hours as other locations, the days seem longer. That's because the sun rises and sets later in Alaska due to time zone boundaries.
February 1 is the shortest day of the month with 10.52 daylight hours; February 28 is the longest day with 11.34 hours of daylight. It is this increase in daylight that is responsible for the increase in sunshine hours. While January days had 7 hours of sunshine, February has 8 hours of sunshine per day on average. A slight decrease in cloud cover may also play a small part in that rise in sunshine hours, although it is minimal. Cloud cover decreases from 43% to 38% in the course of the month.