2 days ago
Mechanical Design Engineer
Jul 11, 2019
If there is no gap → When the material (railway track, concrete, steel, etc.) is heated it expands and when it is cooled...
Jul 10, 2019
The outside atmospheric air always contains some water in the invisible state (Gaseous State). When the cool drink or cold water in...
Jun 16, 2019
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...