Electrical control circuitry, and electrodes (21, 25) at the end of the laser tube in the laser cavity, apply a short voltage discharge pulse to the gas; this raises the gas to an excited state.

Through this gap the material is intended to pass.

An inlet communicates influent into the aeration chamber and an outlet communicates effluent out of the outer tank.

This changes the state of opening from the open state to the closed state.

A transient electric current is passed through the at least one transmitter.

Written around the face were the words “Love makes time go and time makes love go”.

Energizing the other solenoid (44) moves the spool and valve to a closed position.

One passage (30) transmits the fluid in a first direction, and the other passage (31) transmits the fluid in a second direction different from the first direction.

Energizing one solenoid (42) moves the spool and valve into an open position.

The web is traversed around the cylinder.

The outlet (104) passes the fluid to a destination.

This changes the state of the opening from the closed state to an open state.

An infeed sample receiver passes sample containers into the enclosure.

The web is traversed around the cylinder.

A current is passed after the arrangement is made as described above.