Interval. A time between.
Investigator. One who undertakes to find out certain things.
Incidence. In physics this is a term to indicate the line which falls upon or strikes another at an angle.
Inverted. Upside down.
Invest. To give to another thing something that it lacked before.
Kinetic. Consisting in or depending upon motion.
Laminated. Made up of a plurality of parts. When wooden strips, of different or of the same kinds are glued and then laid together and put under heavy pressure until thoroughly dried, the mass makes a far more rigid structure than if cut out of a single piece.
Launchiug. The term applied to the raising, or starting of a boat, or of a flying object.
Lateral. In mining this is a term to indicate the drifts or tunnels which branch out from the main tunnel. Generally it has reference to a transverse position or direction,—that is, at right angles to a fore and aft direction.
Lift. The vertical motion, or direction in an airship; thus the lift may be the load, or the term used to designate what the ship is capable of raising up.