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    NITROGEN IS MORE IMPORTANT THAN YOU THINK

    NITROGEN IS MORE IMPORTANT THAN YOU THINK INTRODUCTION: In this article, we discuss nitrogen its important properties, and some incidents that happened in the past with people and instruments that deal with nitrogen. So, let's start: LIQUID NITROGEN INCIDENT THAT KILLED THREE TECHNICIAN OF NASA: The First space shuttle mission was named STS-1, the first orbital mission of NASA. This mission is uniquely described in this article due to the incident in which three technicians died due to inhalation of excess nitrogen of nitrogen. IMPORTANCE OF NITROGEN: Nitrogen is a crucial element in the periodic table due to many important properties. Nitrogen is a non-toxic & colorless gas that occupies 78% of the atmosphere. HISTORY OF NITROGEN: In the past, scientists had different opinions about this gas. For example, some scientists think it was brunt air because no combination occur in the presence of this element. Some believe it is very toxic and has no life because the environment fil...
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    Why optics is so much important for future of humanity

    OPTICS: WARS BETWEEN SCIENTISTS

    Three scientists fight in lab

    Introduction:

    Humans are always curious about this nature. That is why they study this universe in great depth. That is why in history we have seen many scientific and technological wars around the world between scientists and nations.

    Old theories about Vision and Sight:

    One of the most important wars is about light. Light is always in great discussion. In old times many humans thought about sight and for this explanation, there are two theories.

    Emission theory:

    The first theory was emission theory, which said that animals had light sources in their eyes and that is why they saw objects and the world around them. I know now we know that this theory is not true but at that time it has many proofs. Let's discuss one of them:

    The evidence of this theory is that many animal's eyes shine in darkness. Modern science prove this thing but at that time it was the most accepted theory that proved this.

    A Lion in night in forest with his bright eyes

    Intromission Theory:

    The second theory is intromission theory, which resembles mostly our modern-era concept of vision perception.  According to this theory, light is not present inside our eyes but light enters our eyes when it hits some object and in this way casts the image of that object in our retina.

    Well, these theories are not the only issue of debate. But the nature of light was also in great issue of debate. In the past, there were two concepts about the nature of light. There are two groups of scientists. 

    WAR BETWEEN SIR ISAAC NEWTON AND HOOKES:

    The first group believed that light is made up of particles this group was led by "SIR ISAAC NEWTON". The second group believed that light is a wave and this group was led by "CHRISTIAN HUYGEN" and "ROBERT HOOKE".

    Sir Isaac Newton gave his theory of 1660-1670 and published his "CORPUSLCE THEROY". The main idea of this theory is that light is not a wave but is made up of particles called "corpuscles" which are responsible for all light phenomena.

    Well, this theory is great and explains many phenomena about light in great depth but this theory can't explain the main things about light.

    Similarly, in 1690 Christian Huygens published his theory in which the wave nature of light is described. Robert Hooke who played an important role in the development of this theory criticized Newton on his theory of light and the war between Newton and Hooke continued until the death of Hooke in 1664.

    Newton's theory was much accepted in the scientific world until one man named "Thomson Young" performed his most famous experiment in the history of science. Which was famous for the young double slit experiment. In this experiment, Young shows superposition phenomena which was not predicted by Newton's theory.

    Well, in the end, Hooke and Newton both are correct about light when scientists discover a new field of physics quantum physics which describes the world in more depth and gives some unusual results.

    Conclusion:

    This is the end of this story and finally, both Hooke and Newton win this huge battle. Unlike, other wars whose results are destruction and catastrophic damages. These wars develop a new field of physics.

    I hope you like this article. Thank you for reading this article.

    Autor:

    This article is written and edited by "Noel Gill".

    Software used:

     In this article, Ahref free keyword generator and Grammarly is used.  

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