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Collection- the flabellum dew collector can collect dew by temperature difference. The material of flabellum and cylinder is metal. It can absorb sunshine and store heat energy into the soil during the day. The flabellum and cylinder can get heat energy from the soil when the temperature dropping at night. This effect can be found clearly if the temperature varies much.
The volume of air flow can be increased by fluctuating wind. Dew can flow into the cylinder with the form of spiral flabellum. The cylinder is inserted into the soil, and its cannular space can store water. The material of the end of cylinder is Porous Ceramics.