| 摘要 |
A device for moving elements in a fluid medium is disclosed. The device comprises a container filled with fluid and elements such as a plurality of small pellets which are dispersed in the fluid. The container is rotatably mounted within a chassis and a drive unit is used to rotate the container. One or more vanes are attached to an inner surface of the container to transport the elements within the containers. For example, if the elements simulate snowflakes which descend through the fluid towards the bottom portion of the container, the vanes trap or catch the snowflakes near the bottom of the container and move the snowflakes towards the top of the container. This creates a continuous, natural simulated snowfall with a natural appearance.
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