You present a glass filled with milk, make a cone with a sheet of paper and pour the milk into it. The audience can clearly see the liquid in the glass diminishing. The glass is placed on the table, the cone unrolled: it is absolutely empty.
You can also show the glass full of milk, which you place on the table: the milk drops into the glass on sight, without any contact of any kind!
Very easy to do.
- Explanation Language