In 1752 a plane flew from an airport. First of all, they check the fuel of the plane. Imagine that you are sitting in a plane but in the sky the feel gets over. Can you think will the plane be safe landed or not? Then the captain checked the fuel again and again but he was thinking there is a problem in that plane. The plane had two destination. First, it flew and landed safe fully on its first destination. It flew for its second destination but suddenly an alarm started beeping. The captain called the air control but the air control said that if you land the plane that would be wonderful or it will crash. The plane used the emergency fuel and increased the speed of the plane, there was 200 miles left to land. After 100 miles left, the plane moved downwards to try and land. The plane decreased the speed of the plane. 50 miles left, the captain announced that we are landing. 40 miles left, the plane came near to the runway. 30 miles left, ready to land. 20 miles, it touched the runway. 10 miles, it safely landed. That was the end of the fuel.
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.
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