How:
With your fingers, hold the bar
underneath the bubble solution. Make
sure that the holes made for the guide wires are also submerged. Note:
The longer the bar is held under the solution, the stronger the bubble
may be. Use the pulley system to raise
the bar and create the bubble wall.
What to
look for:
As you pull the
bar out of the reservoir filled with bubble solution, you will notice a large
bubble beginning to form. The guide
wires and bar serve as a frame for the bubble.
Examining the bubble closely you will see a variety of beautiful
interference colors.
Try blowing on the large
bubble. You will notice a change in the
flow pattern and shape of the bubble film.
By gently shaking the frame, you may have also noticed a series of
waves.
Dip your hand into the soap solution. You can now pass your hand through
the wall of bubble. The more of your arm the you dip into the solution,
the more of your arm you can pass through!
What’s
going on:
The bubble sheet
would not be able to form without the guide wires and bar acting as a
frame. Holding the bar beneath the
bubble solution allows the solution to enter the bar through the holes where
the guide wires enter. This creates a
small reservoir inside of the bar. As
the bar is raised, the bubble solution continuously drips down the guide wires. This lubrication is necessary for the bubble
to form.
Soap Film Painting Construction Page
Related Exhibit: Encase Yourself in a Bubble Page
Related Exhibit: Bubble Shapes Page