Glossary H +++ Popular Articles: 'Helicopter', 'Hydrocarbon', 'Heat'
Humidity refers to the amount of water vapor present in the air. The amount of humidity, or relative humidity, is typically measured as a percentage, and can have a significant impact on aerospace operations and activities.
Deutsch: Hurrikan / Español: Huracán / Português: Furacão / Français: Ouragan / Italiano: Uragano
In the space industry context, the term hurricane doesn't refer to a weather phenomenon directly but rather to its observation, analysis, and impact from a space-based perspective. Satellites equipped with advanced sensors and imaging technologies play a crucial role in monitoring hurricanes, providing real-time data on storm development, movement, and potential impact. This information is critical for weather forecasting, disaster preparedness, and climate research, offering insights into the dynamics of these powerful storms and their effects on the Earth's weather systems and environment.
Hyakutake is a comet that was discovered in January 1996 by Yuji Hyakutake, an amateur astronomer in Japan.
Deutsch: Hydrazin / Español: Hidracina / Português: Hidrazina / Français: Hydrazine / Italiano: Idrazina
Hydrazine in the space industry context refers to a highly reactive and volatile chemical compound used primarily as a rocket propellant and as fuel for satellite thrusters. Its chemical formula is N2H4. Hydrazine is favored for these applications due to its ability to decompose rapidly and energetically upon contact with a catalyst, producing large amounts of hot gas from a relatively small volume of liquid, which makes it an efficient means of controlling spacecraft attitude and position.
In the aerospace context, hydrogen is a chemical element that is used as a fuel, coolant, or propellant in various aerospace systems and vehicles. Hydrogen is an attractive fuel source for aerospace applications because it is light, highly reactive, and can be converted into electricity to power an electric propulsion system.
Deutsch: Hydroponik / Español: Hidroponía / Português: Hidroponia / Français: Hydroponie / Italiano: Idroponica
Hydroponics in the space industry refers to a method of growing plants without soil by using a nutrient-rich water solution. In this system, plant roots are immersed in or exposed to this solution, which provides essential nutrients directly, enabling efficient plant growth. In space, hydroponics offers a viable means of cultivating fresh produce on spacecraft, the International Space Station (ISS), and future lunar or Martian habitats, where traditional soil-based agriculture is impractical. By enabling food production in a controlled, soil-free environment, hydroponics supports long-term human space missions by providing a steady supply of nutritious plants for astronauts.
Deutsch: Hypothese / Español: Hipótesis / Português: Hipótese / Français: Hypothèse / Italian: Ipotesi
Hypothese refers to a proposed explanation for a phenomenon or a speculative statement about the relationship between variables, which can be tested and validated or refuted through observation and experimentation.
Deutsch: Hypoxie / Español: Hipoxia / Português: Hipóxia / Français: Hypoxie / Italian: Ipossia
Hypoxia is a condition characterized by insufficient oxygen supply to tissues and organs. In the space industry, hypoxia is a critical concern due to the unique and challenging environment of space, where maintaining adequate oxygen levels is essential for the health and performance of astronauts.
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