Tag: Water

Whistler

White-faced whistling duck vocalizes frequently with distinctive high-pitched, multi-syllabic whistles which sound very unduck-like. Male and female calls differ slightly and may be a bonding mechanism. Its attractive appearance make it a popular bird in waterfowl collections. They are usually in flocks. They spend a lot of time sitting on the banks. Most foraging activity takes place at night; during the day the birds roost near the water, often in flocks of several hundred, and preen themselves and others. Whistling ducks are more arboreal than many other species of duck, spending part of the day perched on a branch. They are fast swimmers but do not dive except for food.

Whistler

Picture of the day, Wildlife

Marker

Before the development of clearly defined ports, mariners were guided by fires built on hilltops. Since raising the fire would improve the visibility, placing the fire on a platform became a practice that led to the development of the lighthouse. In antiquity, the lighthouse functioned more as an entrance marker to ports than as a warning signal for reefs and promontories, unlike many modern lighthouses. The most famous lighthouse structure from antiquity was the Pharos of Alexandria, Egypt, although it collapsed during an earthquake centuries later.

Marker

Landscape, Picture of the day

Ocean

The word « ocean » comes from the figure in classical antiquity, Oceanus, the elder of the Titans in classical Greek mythology, believed by the ancient Greeks and Romans to be the divine personification of the sea, an enormous river encircling the world. Although many people believe that the oceans are blue because the water reflects the blue sky, this is actually not true. Water has a very slight blue color that can only be seen when there is a lot of water. However, the main cause of the blue or blue/green color of the oceans is that water absorbs the red part of the incoming light, and reflects the green and blue part of the light. We then see the reflected light as the color of water.

Ocean

Landscape, Picture of the day