A seaman's sewing outfit for heavy work.

A compressed air coupling commonly used on European rail and road vehicles to connect one vehicle to the next.

An urgent message used on a radio regarding the safety of people or property. A PAN PAN message is not used when there is an immediate threat to life or property, instead the MAYDAY call is used. PAN PAN situations may develop into MAYDAY situations. As w ...

A tanker of the maximum size capable of transit of the Panama Canal (approx. 50,000-80,000 DWT) (breadth normally the limiting factor)

Panamax Plus are all Panamax ships authorised for fresh water draft greater than 12.04m up to 15.2m and approved for transit in the new locks.

Panamax ships are all ships that comply with the size and draft limitations of the existing (old) locks; namely, length 294.13m by 32.31m in breadth by 12.04 fresh water draft.

Small, circular sheets of newly-formed ice that do not impede navigation.

The area of glass that fits in the window frame.

A term generally applied to individual solar collectors, and typically to solar photovoltaic collectors or modules.

A mainly flat surface for transmitting radiant energy.

A drag-type wind machine that can react to wind from any direction.

A technical rail ramp, used for equalization of points not actually served.

A published rate that is never assessed because no freight moves under it.

A type of lamp having a lens of heavy durable glass that focuses the light. They have longer lifetimes with less lumen depreciation than standard incandescents.

A solar energy conversion device that has a bowl shaped dish covered with a highly reflective surface that tracks the sun and concentrates sunlight on a fixed absorber, thereby achieving high temperatures, for process heating or to operate a heat (Stirlin ...

A solar energy conversion device that uses a trough covered with a highly reflective surface to focus sunlight onto a linear absorber containing a working fluid that can be used for medium temperature space or process heat or to operate a steam turbine fo ...

An emergency signal flare that will float down on a parachute after launch, hopefully improving its visibility.

Same as dropsonde.

A halo consisting of a faint white circle passing through the Sun and running parallel to the horizon for as much as 360

Error that can be introduced when not reading an instrument, such as a compass, directly from its front, due to the separation of the indicator and the scale being read.