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Chemical transmitters. Gardening. Spirituality. Networking. To Health! Coffee. Project help. Science: General News. Venturi effect. The pressure in the first measuring tube (1) is higher than at the second (2), and the fluidspeed at "1" is lower than at "2", because the cross-sectional area at "1" is greater than at "2".
A flow of air through a venturi meter, showing the columns connected in a U-shape (a manometer) and partially filled with water. The meter is "read" as a differential pressure head in cm or inches of water. Flow in a Venturi tube The Venturi effect is the reduction in fluid pressure that results when a fluid flows through a constricted section of pipe. Mpemba effect. The Mpemba effect, named after Erasto Mpemba, is the assertion that, in some circumstances, warmer water can freeze faster than colder water.
Although there is evidence[1][2][3] of the effect, there is no agreement on exactly what the effect is and under what circumstances it occurs. There have been reports of similar phenomena since ancient times, although with insufficient detail for the claims to be replicated. Eudora. Interesting Stuff. Tree of Life on Earth. History of the Earth. Archaeplastida. Our Universe. COLORS.