What is air breathing?

Some articles on air breathing, air:

Bichir - Air Breathing
... They are obligate air-breathers, requiring access to surface air to breathe in poorly oxygenated water ...
Specific Impulse - Examples
... An air-breathing jet engine typically has a much larger specific impulse than a rocket for example a turbofan jet engine may have a specific impulse of 6,000 ... An air-breathing engine is thus much more propellant efficient than a rocket engine, because the actual exhaust speed is much lower, the air provides an oxidizer, and air is ... While the actual exhaust velocity is lower for air-breathing engines, the effective exhaust velocity is very high for jet engines ...
SABRE (rocket Engine)
... SABRE (Synergistic Air-Breathing Rocket Engine) is a concept under development by Reaction Engines Limited for a hypersonic precooled hybrid air ... SABRE is an evolution of Alan Bond's series of liquid air cycle engine (LACE) and LACE-like designs that started in the early/mid-1980s for the HOTOL project ... The air breathing mode combines a turbo-compressor with a lightweight air precooler positioned just behind the inlet cone ...

Famous quotes containing the words breathing and/or air:

    Nobody, but nobody, is going to stop breathing on me.
    Virginia Apgar (1909–1974)

    There sighs, lamentations and loud wailings resounded through the starless air, so that at first it made me weep; strange tongues, horrible language, words of pain, tones of anger, voices loud and hoarse, and with these the sound of hands, made a tumult which is whirling through that air forever dark, as sand eddies in a whirlwind.
    Dante Alighieri (1265–1321)