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Manova
1 year ago
Mechanical Design Engineer
Member since May 26, 2019
manovaje@gmail.com
Why there is a gap between the railway tracks...
If there is no gap → When the material (railway track, concrete, steel, etc.) is heated it expands and when it is cooled...
Why does the cold water bottle or cold drinks...
The outside atmospheric air always contains some water in the invisible state (Gaseous State). When the cool drink or cold water in...
Why is the sky blue?
When we walk out of the home and see the sky a question arises in our mind. Why is the sky blue? We will think we have studied that...