Photo collection by Th.Schiöler Man powered The scoops mm.

The scoops mm.

How to catch very small fish in Bangladesh Water and small fish are forced to go through the sieve. The man on the left scoops the water out into the lake and the fish and water enter from the righthand side. [7]		Scoops These scoops are made of bamboo like a basket. Bamboo has enormous strength in relation to its weight. [8]		Scoop irrigating in China In Mexico and Asia, the water runs in between the fields and from these furrows the water is spread out over the field. [9] FAO photo
A rather complicated device In this scoop, we have three movements. The sideways movement takes the water from the channel to the field. At the same time, the water is lifted. During this movement the pole is turned and the water gushes from the can. This device is unknown outside Indonesia. [10] FAO photo.		A water-lifting scoop in Bangladesh A scoop suspended from a rope, is easy to operate. The water is literally carved out of the surface. All this work is done in one movement. [11]		The same water-lifting scoop from Bangladesh In the final position, the water is thrown right out into the field. [12]
Salt-pans in Sri Lanka The water from the sea is lifted 15 to 20 centimetres only, but at the same time, a large flow is required. It raises between 10 and 20 m3/h. A calculation shows that it is equal to 4 to 10 watt. The big scoop is heavy. The weight creates a sort of flywheel for the device. The exposure of the photo was 1/1000 second. For that reason we can see where the scoop has made a hollow in the surface of the water. [13]		Swing-basket in West Bengal near Calcutta It is easy to see that the two boys are leaning backwards, this makes the basket move upwards. If the head is small, the basket is made bigger. Two young boys like to compete against another pair, to see who can make the maximum possible number of lifts without taking a rest. [14]		Another swing-basket from Bengal Judging by the photo, a great part of the lifted water is lost. Behind the bag a partial vacuum is formed which will try to draw up some water but, as we can see, this water never reaches the field. [15]
A basket made of wickerwork from Calcutta The swing-basket is made in different sizes. It is almost waterproof. Compared with one made of sheet steel, the wickerwork basket is nearly weightless. [16]