Science, Technology, and Biology
- Light travel distance, a cosmological distance measure
- Low Temperature Difference engine, a heat engine that operates by cyclic compression and expansion of air or other gas, see Stirling engine
- Laser target designator, a laser light source which is used to illuminate a target
- Linear Transformer Driver, a torus shaped parallel connection of switch capacitor units, designed to deliver rapid high power pulses
- Long-term depression, (neurophysiology), a long-lasting weakening in signal transmission between neurons
Read more about this topic: LTD
Famous quotes containing the word biology:
“The “control of nature” is a phrase conceived in arrogance, born of the Neanderthal age of biology and the convenience of man.”
—Rachel Carson (1907–1964)