Water shoots

Introduction of predatory mites by means of water shoots in summer ... 

During the first 20-30 seconds of an eruption, steam and boiling water shoot through the narrowest part of the vent at near the speed of sound. The narrow tube limits the rate at which the water can shoot from the geyser. When the pressure falls below a critical value, the process slows and Old Faithful begins to quiet down again. 

Fig. 39.8. Plume of water shooting up against vertical wall at end of flume.

A skilled worker can use a micro-Bunsen burner for most types of heating. Nevertheless, as there is a tendency for a liquid to shoot out of a small test tube when heated, it is preferable to place the tube in a hot water-bath or in a metal heating block. A small glycerol bath is suitable for distillations and heating under reflux, the glycerol being subsequently easily removed from flasks, etc., by washing with water. 

The same applies to the use of spray pistols (spray guns and aerosol cans), the frequency of whose use ought probably to be reduced on account of the propellant gas (chlorofluorohydrocarbons) employed Manual depression of the button valve of the vertically held spray can shoots the propellant gas through a fine jet and drags the sucked-up reagent solution with it onto the vertically held chromatogram (water pump pnnciple)... 

Even without the current outsourcing trends, it has always been difficult for service companies to find sufficient numbers of well-trained, experienced, and motivated field representatives. This is because the range of water treatment problems and potential solutions are very wide and the business involves the marketing of many different types of chemicals and equipment, coupled with consulting work and innovative trouble shooting. 

Itai, C. Vaadia, Y. (1971). Cytokinin activity in water-stressed shoots. Plant Physiology, 47, 87-90. 

Fig. 7. Root and shoot dry weight of wheat after 22 days of growth (5-leaf Stage) at various soil penetrometer resistances. Variations in penetrometer resistance were obtained by varying soil bulk density and water content. Symbols are as follows. Shape refers to bulk density (g cm ) 0,1.17 A, 1.29 , 1.37 <0, 1.41 V, 1.45. Shade refers to water content (g g dry soil) open symbols, 0.22 or 0.23 half-shaded, 0.25 closed, 0.27. Points are means s.E. (n = 6). Modified from Masle Passioura (1988).

Sharp, R.E. Davies, W.J. (1979). Solute regulation and growth by roots and shoots of water-stressed maize plants. Planta, 147, 43-9. 

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