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.
1 The longest day is 3:13 longer than the shortest day. 2  There is an average of 2943 hours of sunlight per year (of a possible 4383) with an average of 8:03 of sunlight per day.  It is sunny 67.1% of daylight hours. The remaining 32.9% of daylight hours are likely cloudy or with shade, haze or low sun intensity.