WASTING EFFICIENTLY

 

  

The national geographic magazine is well known for its breath taking photographs.  To select one good photograph,  it rejects hundreds.

     While sculpting a statue, the sculptor chisel out lot of unwanted portions from the stone and a beautiful figure emerges.

    In making gold jewelery, there will be a wastage.  Every brand claims, there wastage charge is minimum.  In all electrical appliances, electricity produces unwanted heat energy.  Hence we lose electrical energy in the form of heat.

     Hence the wastage is unavoidable.  The prime aim of science and technology is to reduce wastage to a minimum in energy, time, space and resources etc

Energy:

 Take the tungsten bulb invented by Edison.  We say today, it is highly inefficient, even though it illuminated the world nearly for 100 years.  It emits lot of heat besides light.  Hence we have now moved to LED bulbs which is more efficient.

     Petrol engine, diesel engine, steam engine, and jet engine ; all the heat engines does not convert all the fuel into mechanical work.  That is, they have less than 100 % efficiency.  Engineers always strive to increase their efficiency.  

Space:

     If you want to utilize space properly, fold up things like brain tissues; like intestine tubes.  In CD and DVD, several miles long track is folded up into a compact spiral.
   Sphere shape encloses maximum volume for a given surface area.  Hence most natural shapes are spherical{vegetables, fruits, eggs}.

Time:

     To use time efficiently, do things parallely and not serially.  That is do not do things one by one.  But do multitasking.  
[if required]
     The more the work we do, we get more time.  The less the work we do, we get less time.

Resources:

     To waste less, use recyclable; rechargeable; renewable resources.  We no longer use 'one time use' batteries, instead we use rechargeable ones.  Our body recycles blood etc,.  Our eco-system recycles itself.  We are now shifting to renewable energies like wind energy, hydro energy, solar energy etc,.

Do not go for 'use and throw'.
Go for 'use and reuse'.

Information:

    Store your bio-data, mails, magazines, movies, books, certificates, documents, money, shares,photos in virtual storage.  That is, use electronic memory and avoid physical material so that we can reduce the wastage of trees , papers, ink, storage-space and time.

Waste less and save earth.

Post script:  Efficiency = useful output /total input

    In heat engine, efficiency= heat converted into work/total heat supplied

We always try to bring this ratio to '1' or 100 % which is often very difficult.