A momentary decrease in the speed of the wind.

Deadfreight. Space booked by shipper or charterer on a vessel but not used

Massachusetts Institute of Technology.

In a system of moist air, the dimensionless ratio of the mass of water vapor to the total mass of the system.

A nickname referring to British seamen. All British ships were to carry a supply of lime juice for issue to the crew as a preventative against scurvy.

To retire from a life at sea and settle ashore.

(ISG)Allows regulatory staffs of the US securities exchanges and the NASD to co-ordinate industry-wide.

An aneroid barograph designed to record atmospheric pressure variations of very small magnitude.

A vent used with pressure sensors to reduce the effect of wind on the pressure inlet. It is normally mounted remotely and connected to the sensor using airtight tubing.

The unit of change in the size or shape of a body due to force. Also known as nominal strain.

Radiation coming from the solid angle of the sun's disc, as opposed to diffuse sky radiation, effective terrestrial radiation, or radiation from any other source. Direct solar radiation is measured by pyrheliometers.

For Our Guidance

To make fast. To bend a sail, is to make it fast to the yard. To bend a cable, is to make it fast to the anchor. A bend, is a knot by which one rope is made fast to another.

The proper return port of a discharged seaman.

In meteorology, an area of low pressure; a low or trough.

The dimensionless number obtained when the difference between maximum and minimum instantaneous shaft speeds during one period is divided by the arithmetic mean of these two.

A listing of a particular boat's steering deviation on each point of the compass

Pertains to the machining characteristics of an alloy to which one or more ingredients have been introduced to give small broken chips, lower power consumption, better surface finish, and longer tool life; among such additions are sulfur or lead to steel, ...

A clear, colorless, very mobile liquid that is flammable and poisonous; used as a fuel and fuel additive, and to produce chemicals.

A rotating fitting used to keep a line from tangling.