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TALKING ABOUT TOILET

      


     The Loo is a taboo subject.  But, do you know, the invention of flush toilet and mass sanitation has increased the Average person's life span by 20 years.
     Why open defecating is strongly discouraged?  It is because faeces are hot beds of disease.  Just 1 gm of faeces can contain 10 million viruses, 1 million bacteria and 100 worm eggs.  It mainly causes cholera and diarrhea.  Even today, four out of two people only have  access to toilets of any kind.

    There are many kinds of toilets.
FLUSH TOILET

     It is common and popular one in India.  The 'night soil' is flushed out by stream of water.   Below the seat of the toiler, water carrying tube is shaped like U.  Hence, some water always stands in it.  It act like water seal and stop the return of human waste and odor.
VACUUM TOILET
     In train and airplane this toilet is used.  It is difficult to use fluid water in fast moving train or flying plane.  The waste is sucked up by the vacuum and only little water is required.
MOBILE TOILET or CHEMICAL TOILET
     The portable toilet is used on construction sites, film locations and large outdoor gatherings where there are no other facilities.  Here chemicals are used to reduce odor and kill bacteria and viruses.
PUBLIC TOILET
     One cannot even mention the word public-toilet.  But some countries and some organisations made public toilet adorable without odors.  But heavy populations is a big problem.
HIGH TECH TOILET
     They include features like
1. Automatic flushing mechanisms
2. Water jets
3. Blow dryers
4. Urine and stool analysis
5. Checking of blood pressure
     temperature and blood sugar
6. Heated seats, Deodorizing fans.
    So tech have even infiltrated into the Loo.
SPACE TOILET
     Ejecting the contents of toilet into space in dangerous.  The jettisoned waste travel at 10 km per second.  If it hit a space-walking astronaut, it will create a dent of 1 mm deep in his space suit.  Hence all solid waste is stored and returned to earth.  But urine on the international space station is recycled into drinking water.  It saves the transporting cost of water  which is 40000 dollars per gallon.  Hence the costliest toilet is in the space.
    In 2007, British medical journal readers voted sanitation the biggest medical break through in the last two centuries.
     Hygienic toilet for everyone and everywhere is the need of the day.   
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