Element

In space and astronautical engineering, an element refers to a substance that cannot be broken down into simpler substances by chemical means and is composed of atoms with the same atomic number. Elements are crucial components in the design and construction of spacecraft and their subsystems. For example, the element lithium is used in the construction of lightweight batteries for spacecraft, while the element titanium is used in the construction of spacecraft structures and components due to its high strength-to-weight ratio. Elements are also used in the propulsion systems of spacecraft, such as the use of liquid hydrogen and liquid oxygen as propellants in rocket engines. Understanding the properties and behavior of elements in space is essential for the development of new technologies and the exploration of the universe.
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