Once upon a time there was no zero. Of course people knew if they had nothing, but there was no mathematical notation for it. Zero was independently invented only three times. The first recorded zero is attributed to the Babylonians in the 3rd century BC. A long period followed when no one else used a zero place holder. But then the Mayans, halfway around the world in Central America, independently invented zero in the fourth century CE. The final independent invention of zero in India was long debated by scholars, but seems to be set around the middle of the fifth century. It spread to Cambodia around the end of the 7th century. From India it moved into China and then to the Islamic countries. Zero finally reached western Europe in the 12th century. In today's modern mathematics, we have become accustomed to zero as a number. It's hard to believe that most ancient number systems didn't include zero. The Mayan civilization may have been among the first to have a symbol for zero. The Mayas flourished in the Yucatan peninsula of Mexico about 1300 years ago. They used the as a placeholder, in a vertical place-value system. It is considered one of their cultures greatest achievements.

The ancient Egyptians, Romans, and Greeks alike had no symbol for zero. In Greek geometry, zero and irrational numbers were impossible. The Greeks made great strides in mathematics, but it was all done with a number system without zero. The Greek astronomer Ptolemy (ca. A.D. 150) was the first to write a zero at the end of a number. For this he used a circular symbol.

In ancient Babylonian history there was no use of the zero. In the later Babylonian or during the Seleucid period a special symbol, which was also used as a separation mark between sentences, came into use for a zero. There's a definite possibility that the Babylonians used this mark for a zero within a number, as early as the end of the eighth century B.C. Up until the time of Aristotle, there seems to be no...

...No Zero Policy
In most schools in many states, teachers and parents consider a grade of zero acceptable for incomplete homework. It is common for teachers to give zeros for late or slacked off assignments. Unfortunately, few teachers or parents question the usefulness of the consequence, and students continue to reap the consequences without benefit. Giving zeros as an punished measurement produces failure rather than performance....

...www.plusminuszero.jp
Table of Contents
I. Plus Minus Zero introduced
1) Simple idea behind the company
2) Design
3) Target audience selected
II. Unique Preposition
III. Production. 3 double page products advertisements
4) Initial ideas and argument behind them
5) Final choice and design of adverts
a. Typography chosen
b. Tagline idea explained
c. 3 Products to be advertised
i....

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Zero Tolerance: How Much is Too Much?
By Brooke West
Arkansas State University
Fall 2014
Zero Tolerance: How Much is Too Much?
Introduction
“Zero Tolerance” was first established in 1994 after the Gun-Free Act of 1994. This act stated that fire arms and weapons were not permissible on school property. The zero tolerance policy came into play to back the Gun-Free Act saying that any student that was on school property with a...

...low can you go?
A French physicist by the name of Amontons discovered that pressure and temperature dropped at the same rate, so the temperature at zero pressure was as low as you could possibly go with temperature, or absolute zero. He found this number to be approximately –273 degrees Celsius.
Another great advance in the search for absolute zero came from Michael Faraday. Faraday investigated the particles of chlorine and determined that...

...Zero Tolerance 1
Running Head: ZERO TOLERANCE
Zero Tolerance Policy
TCH 535
Grand Canyon University
Karen Bannen
December 5, 2012
Zero Tolerance 2
The zero tolerance policy was created to prevent weapons from being bro9ught to school, but how far is too far? In a junior or senior high setting the policy is more understood and justified, however, in an elementary setting one...

...Will Pearson 1
Social Problems
Zero Tolerance Shouldn’t Be Tolerated
In September of 1997 a nine year old boy handed out Certs Mints in class. He was subsequently suspended from school for possession and distribution of “look-alike” drugs and was interviewed by a police officer (Skiba, Peterson 1999). This is just one of many injustices the current zero tolerance policy has handed out since it began to be used in 1989. The origins of this...

...Zero Tolerance for College Students
Gladwell stated in, “No Mercy” (2006), “this is the age of zero tolerance.” Zero tolerance policies, which are regulations for specific issues such as weapons, drugs, cheating and alcohol, are adopted by many schools and workplaces today. According to a government study, more than three quarters of the schools in America use zero policy to restrict students from misconduct. However, statistics show...

...Zero in Mathematics
Zero as a number is incredibly tricky to deal with. Though zero provides us with some useful mathematical tools, such as calculus, it presents some problems that if approached incorrectly, lead to a breakdown of mathematics as we know it.
Adding, subtracting and multiplying by zero are straightforward.
If c is a real number,
c+0=c
c-0=c
c x 0=0
These facts are widely known and regarded to hold true in...