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.
You can experience the brightness of the Midnight Sun in Iceland between mid May until mid August; Iceland's hours of daylight on the longest days of the year is 24 hours per day (May-July) Iceland's hours of daylight on the shortest days of the year is 4-5 hours per day (December-January) Iceland's hours of daylight increase by 1-3 minutes every day between December 21 and June 21; Iceland's hours of daylight decrease by 1-3 minutes every day between June 21 and December 21; The Midnight Sun can be seen everywhere in Iceland