*
*
Harbottle
 |
* | #791 Harbottle
Apparatus.
The Harbottle helps students understand the meaning of fluid pressure and pressure sreduction. A Harbottle is a round, glass, container with a balloon stretched over its opening and a hole in the flattened base that is fitted with a rubber stopper. Students are amazed when the balloon remains inflated inside the bottle even though it is not tied off or sealed. Supplied with instructions. |
