Glossary H +++ Popular Articles: 'Heat absorption', 'Hover Out of Ground Effect', 'Harsh Space Environment'
English: Habitability / Deutsch: Bewohnbarkeit / Español: Habitabilidad / Português: Habitabilidade / Français: Habitabilité / Italiano: abitabilità /
In the realm of aerospace, habitability takes on a unique and critical role. It refers to the conditions and provisions necessary to make a space, whether it's a spacecraft, space station, or future extraterrestrial colony, suitable for human habitation.
Deutsch: Hall-Effekt / Español: Efecto Hall / Português: Efeito Hall / Français: Effet Hall / Italiano: Effetto Hall /
In the space industry context, the Hall-effect refers to a principle used in the operation of Hall-effect thrusters (HETs), a type of electric propulsion system for spacecraft. The Hall-effect describes the generation of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and an applied magnetic field perpendicular to the current. This phenomenon was discovered by Edwin Hall in 1879.
Deutsch: Halo / Español: Halo / Português: Halo / Français: Halo / Italiano: Alone
Halo in the space industry context generally refers to a specific type of orbit used in satellite communications and observations, known as a "Halo orbit". These orbits are three-dimensional, periodic orbits found near the L1, L2, or L3 Lagrange points in a two-body system, such as the Earth and the Sun or the Earth and the Moon. Halo orbits are particularly significant for their stability and the unique observational perspectives they offer, which are useful for various scientific and telecommunication applications.
In the aerospace industry, the term "hardware" refers to the physical components or devices that make up an aircraft or spacecraft. This includes everything from structural components and propulsion systems to sensors, controls, and other electronic systems.
Deutsch: Harsh / Español: Severo / Português: Rigoroso / Français: Sévère / Italiano: Severo /
Harsh refers to environments or conditions that are difficult, extreme, or challenging in some way. Harsh environments or conditions can be physically or mechanically demanding, and they can present challenges for the operation and performance of aerospace systems and components.
Deutsch: Raue Weltraumumgebung / Español: Entorno espacial adverso / Português: Ambiente espacial hostil / Français: Environnement spatial difficile / Italiano: Ambiente spaziale ostile
Harsh Space Environment in the space industry context refers to the extreme and unforgiving conditions encountered beyond Earth's atmosphere, which present significant challenges to spacecraft, satellites, and human spaceflight. This environment is characterized by a vacuum, extreme temperatures, microgravity, high levels of radiation, and the presence of micrometeoroids and space debris. These factors necessitate robust design and innovative technologies to ensure the survival and functionality of space missions.
A hazard is a potential source of harm. Substances, events, or circumstances can constitute hazards when their nature would allow them, even just theoretically, to cause damage to health, life, property, or any other interest of value.
In thermodynamics, heat is defined as the form of energy crossing the boundary of a thermodynamic system by virtue of a temperature difference across the boundary.
Deutsch: Wärmeabsorption / Español: Absorción de calor / Português: Absorção de calor / Français: Absorption de chaleur / Italiano: Assorbimento del calore
Heat absorption in the space industry context refers to the capacity of spacecraft materials and systems to absorb and manage thermal energy. This is crucial for protecting spacecraft and satellites from the extreme temperatures encountered in space, as well as for maintaining the necessary conditions for onboard instruments and crewed missions. Effective heat absorption and thermal management systems are essential for ensuring that spacecraft can withstand the intense cold of shadowed space and the severe heat of direct solar radiation without suffering damage to structural integrity or onboard systems.
In the aerospace context, heavy-lift refers to the ability of an aircraft or launch vehicle to lift and transport large, heavy payloads such as satellites, space stations, or other large structures or equipment.
A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally.
In the aerospace context, a hexapod is a type of robotic mechanism that has six legs, each of which can move independently. Hexapods are used in a variety of aerospace applications, including testing and simulation, payload handling, and maintenance tasks.
"Hi-Rel" stands for "High Reliability". It refers to the design, testing, and manufacturing practices that are used to ensure the reliability and performance of aerospace systems and components.
High-reliability (Hi-rel) refers to the ability of a system, component, or process to perform its intended function consistently and with a low probability of failure. High reliability is especially important in the aerospace industry because of the critical nature of the systems and processes involved and the potential consequences of failures.
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