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Link to Subject Category
la Nina - 47
ladar (application) - 32
ladar (design) - 36
laminar flow (aerodynamics) - 02
laminar flow (general) - 34
laminates - 24
land transportation vehicles (aerodynamics) - 02
land transportation vehicles (development and technology) - 85
landing gear (aircraft) - 05
landing gear (spacecraft) - 18
landing gear position indicators (aircraft) - 06
landing gear position indicators (spacecraft) - 19
LANDSAT (configurations) - 18
LANDSAT (remote sensing applications) - 43
language translation - 82
large deployable space antennas - 32
Large Space Telescope - 89
laser altimeters (aircraft) - 06
laser altimeters (spacecraft) - 19
laser amplifiers - 36
laser Applications - 36
laser beams - 36
laser cavities - 36
laser communications systems (aircraft) - 04
laser communications systems (spacecraft) - 17
laser communications - 32
laser damage - 36
laser Doppler velocimeters - 35
laser drilling (theory and techniques) - 36
laser instruments (aircraft) - 06
laser instruments (design and operation) - 35
laser instruments (spacecraft) - 19
laser interaction with plasmas - 75
laser materials - 36
laser modulators - 36
laser optical radar - 32
laser optics - 36
laser radiation effects - 36
laser radiation hazards - 36
laser range finder facilities - 14
laser research - 36
laser space communications facilities - 14
laser theory - 36
laser tracking systems (aircraft) - 04
laser tracking systems (general) - 36
laser tracking systems (spacecraft) - 17
laser welding - 37
lasers - 36
lasertrons - 36
lateral control (aircraft) - 08
lateral control (spacecraft) - 18
lateral stability (aircraft) - 08
lateral stability (spacecraft) - 18
lattice vibrations - 76
launch complexes - 14
launch facilities - 14
launch operations - 15
launch pads and bases - 14
launch towers - 14
launch vehicle aerodynamics - 02
launch vehicle auxiliary systems - 15
launch vehicle configurations - 15
launch vehicle design - 15
launch vehicle dynamics - 15
launch vehicle maintenance - 12
launch vehicle manufacturing - 12
launch vehicle navigation - 17
launch vehicle performance - 15
launch vehicle preparation - 15
launch vehicle production - 12
launch vehicle simulators - 14
launch vehicle stability - 15
launch vehicle testing - 15
launch vehicle trajectories - 13
launch vehicles - 15
launching dynamics - 13
law - 84
legal liability of commercial aviation - 84
legal liability of general aviation - 84
legal liability of manned space flight - 84
legal liability of unmanned space flight - 84
lens theory - 74
lenses (optical properties) - 74
lenses (photographic) - 35
leptons - 77
lexicography - 82
library science - 82
lidar - 32
life detection - 55
life prediction - 38
life sciences - 51
life support - 54
life testing - 38
lifting bodies - 05
lifting body aerodynamics - 02
light absorption - 74
light emitting diodes (LED) - 33
light gas guns (launch facilities) - 14
light gas guns (operations) - 15
light reflection - 74
light scattering - 74
light transmission - 74
lighter-than-air craft (balloons, airships) aerodynamics - 02
lighter-than-air craft (balloons, airships) design - 05
lightning discharge on aircraft - 03
lightning - 47
lightweight structural elements - 39
lightweight structures - 39
limnology - 43
linear programming - 66
liquefied gases - 31
liquid crystals - 76
liquid fuels - 28
liquid hydrogen (propellants and fuels) - 28
liquid lasers - 36
liquid optics - 74
liquid oxygen (propellants and fuels) - 28
liquid petroleum gas (LPG) - 28
liquid propellant rocket engines - 20
liquid propellants - 28
liquid settling - 34
liquid sloshing - 34
lithergolic propellants - 28
lithography (circuit fabrication) - 33
lithology - 46
littoral regions - 43
local area networks (LAN) - 62
Long Range Navigation System (LORAN) - 04
longitudinal control (aircraft) - 08
longitudinal control (spacecraft) - 18
longitudinal stability (aircraft) - 08
longitudinal stability (spacecraft) - 18
low pressure chemistry - 25
low speed aerodynamics - 02
low temperature effects (human) - 52
low temperature test facilities (aircraft) - 09
low temperature test facilities (space) - 14
low thrust engines - 20
lower atmosphere studies - 46
lubricants - 27
lubrication properties of nonmetallic materials - 27
lubrication - 37
luminescence (atomic physics) - 72
luminescence (chemistry) - 25
luminescence (optics) - 74
lunar and planetary bases - 14
lunar and planetary resource utilization - 91
lunar and planetary resources - 91
lunar eclipses - 92
lunar exploration - 91
lunar facilities construction - 14
lunar gravity simulators - 14
lunar landers - 18
lunar landing sites - 91
lunar mapping - 91
lunar orbiters - 18
lunar photography - 91
lunar regolith simulants - 91
lunar roving vehicles - 14
lunar samples - 91
lunar structure - 91
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