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...
HYDROGEN AND HELIUM: WHICH ONE IS BETTER FOR AIRSHIP Hydrogen and Helium are the two ideal elements for airships. The airship was the flying machine famous for transportation before the incident "Hindenburg" occurred on May 6,1937. Hydrogen is best in the way that it is lighter than air. It is less costly than helium. But it is very flammable. It's very reactive. Helium on the other hand is heavier than hydrogen and also very costly. But it is inert and non-reactive. Kinds of Airship: There are three kinds of airship: 1. Blimp Airship There are better options than the blimp type of Airship. It has a single balloon so increasing the lifting gas in the balloon causes it to deform shape. It can't have support. 2. Semi-Rigid Airship Semi-rigid Airship has some support. Increasing its size is easier than Blimp Airship. But up to a certain size. 3. Rigid Airship Rigid Airship has special chambers. So, it is much easier to increase its size, and that is why it is an ide...