Give your examples of observations and experiences
August 27, 2020 | Education
| Pierce the balloon with a needle so that it does not burst with a noise. This can be done in three ways: 1) from the sides where the rubber is strongly stretched, glue a piece of tape and pierce the ball in this place; 2) where the rubber is the thickest, i.e. on the “crown”; 3) where the rubber is not stretched – where is the thread.
