1. N

    Drinking bird temperature

    In a drinking bird, water from the wet on the outside of the head evaporates, causing the vapor inside the head of the bird to cool. This reduces the pressure of the vapor at the top, allowing the higher pressure in the lower bulb to push up the column of liquid. But the bird's body...
  2. L

    lowest frequency of a water with drinking straw

    the ans given here is 'using the opened pipe method'. but i solve it using closed pipe method. which i have sketched using the pencil on the right of the diagram. why cant i solve it using 'closed pipe method' , i just couldnt understand.