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NOTHING

  Zero was invented long after the invention of numbers.  zero(0) usually indicates nothingness.  I owe you nothing or zero dollars.

      First, zero serves as a place holder in a number system.
Examples:
5; 500; 0.005
It aids readability of a number.

 Adding and multiplying with zero is easy.
5+0=5;  5*0=0
but subtracting,  5-0=5 0-5= -5

 Division presents some problem
0/5=0; it is logically okay

 But 5/0 is a mathematical nightmare.  First it is said to be undefined.
Another argument goes like this,
5/1=5; 5/.1=50; 5/.01=500
So as the divisor are goes on decreases, the answer is looming large.  The conclusion is, when the divisor  is zero, the answer must be infinity.  But infinity is another weired concept.



  In physics, we have zero temperature, zero energy level, zero gravity etc,.
So, "nothing" really matters.

 Science update: Potato has been grown in simulated Martian condition(mars) in peru.
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