The Emperor Penguin

Emperor penguins are truly beautiful birds. The largest of different species of penguins, emperor penguins grow about 45 inches tall. Adults have a white stomach and a black head, back tail and wings. They also have yellowish-golden markings on the sie of their head and neck. They inhait Antarctica, Earth's southernmost continent, where tempeatures drop to as low as -60 degrees Celsius. To survive in such low temperatures, these brilliant birds have special adaptations. They have large stores of insulating body fat and several layers of scale like feathes that protect them from icy winds. The huddle in large groups to keep themselves, and each other, warm. By the time the female lays her egg, she develops a big appetite. She passes the egg to the male before journeying up to 80 kilometres into the open ocean, where she can feed her hungry tummy on fish, squid and krill.

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Why Do Glass Windows Shatter During Fire?

You might have noticed in movies and also in real life that whenever there is a fire inside a building, the glass windows crack and break. The openings of the windows in the walls of the room on fire play a key role in the spread of fire. Windows are those parts of the buildings that generally have less resistance to fire in comparison to that of the walls. During a fire, there is a increase in temperature inside the room. The glass pane is not subjected to uniform heat from the fire. Glass windows are fitted within the frames, and the thickness of the frame is larger in comparison to that of the glass pane. There is an intense heat flow that is suddenly experienced on one side of a glass pane. As a result, the heat focussed on the central region of the glass causes it to expand. While the edges of the pane happen to be relatively cooler, which induces stress in the material. This shifting gradient is known to shatter the glass to pieces.

Preface of Planes

The Plane is a book of planes that were not known. The book starts with stories of planes like: the fuel got over, the plane stole all the money, the plane landed after 34 years and more. This book is fiction book. Some stories are real. Enjoy it and read it.

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