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Osmosis is the phenomenon of water flow through a semi permeable membrane, a fundamental effect in all biological systems. It is applied to water purification and desalination, waste material treatment, and many other chemical and biochemical laboratory and industrial processes. When two water (or other solvent) volumes are separated by a semi permeable membrane, water will flow from the side of low solute concentration, to the side of high solute concentration. The flow may be stopped, or even reversed by applying external pressure on the side of higher concentration. In such a case the phenomenon is called reverse osmosis.
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Do fish breathe water?
Yes, fish essentially breathe water through their gills, but they don’t use the water to make energy, but the oxygen that is dissolved in the water. In essence, fish are…
How come water has no taste or color?
The Dictionary defines water as “a clear, colorless, odorless, and tasteless liquid, H2O, essential for most plant and animal life.” The Encyclopedia goes on to say that “Life depends on…
Why does an egg soften in vinegar?
The eggshell is made of calcium carbonate. Vinegar contains 5% acetic acid, and that is what dissolves the eggshell. All that is left is the membrane that runs between the…
Can you drink sea water?
Water from the sea is too salty to drink. Although your body needs salt, it is possible to have too much of it. See, your body is made of cells…
Why do I get a stitch in my side when I run?
When you run, you use more oxygen than you do when you’re walking or resting. If you aren’t able to compensate by pumping your blood faster and breathing more deeply,…
Born on this day
June 19, 20131903 - Walter Hammond
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1954 - Kathleen Turner
1962 - Paula Abdul
1978 - Garfield