Migration and Migrating Birds
Every Year thousands of birds fly across the continents covering Vast distances. They seem to fly 15000 to 20000 Kms at a time at a speed of about 20 to 30 KMH. They increase the weight and store energy before they start flying. They have definite pathways within which they fly and keep rest and refueling points along the route. They fly as a flock to protect the foraging efficiency. The precision with which they navigate is immaculate. Lot of Physics is involved in that. They use: 1. The position of sun to determine the direction 2. Earth’s magnetic lines to orient themselves to the course 3. Recognize the constellations and use them to decide the direction. 4. View the visual identifications like mountains. Rivers, coast line and such other giant objects to ensure their path. 5. They use the position of Moon, Stars and the Planets. 6. Deduct the changes ...
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