What is "dead water"

Dead \Dead\ (d[e^]d), a. [OE. ded, dead, deed, AS. de['a]d; akin to OS. d[=o]d, D. dood, G. todt, tot, Icel. dau[eth]r, Sw. & Dan. d["o]d, Goth. daubs; prop. p. p. of an old verb meaning to die. See Die, and cf. Death.]

1. Deprived of life; -- opposed to alive and living; reduced to that state of a being in which the organs of motion and life have irrevocably ceased to perform their functions; as, a dead tree; a dead man. ``The queen, my lord, is dead.''
   --Shak.

   The crew, all except himself, were dead of hunger.
   --Arbuthnot.

   Seek him with candle, bring him dead or living.
   --Shak.

2. Destitute of life; inanimate; as, dead matter.

3. Resembling death in appearance or quality; without show of life; deathlike; as, a dead sleep.

4. Still as death; motionless; inactive; useless; as, dead calm; a dead load or weight.

5. So constructed as not to transmit sound; soundless; as, a dead floor.

6. Unproductive; bringing no gain; unprofitable; as, dead capital; dead stock in trade.

7. Lacking spirit; dull; lusterless; cheerless; as, dead eye; dead fire; dead color, etc.

8. Monotonous or unvaried; as, a dead level or pain; a dead wall. ``The ground is a dead flat.''
   --C. Reade.

9. Sure as death; unerring; fixed; complete; as, a dead shot; a dead certainty.

   I had them a dead bargain.
   --Goldsmith.

10. Bringing death; deadly.
    --Shak.

11. Wanting in religious spirit and vitality; as, dead faith; dead works. ``Dead in trespasses.''
    --Eph. ii. 1.

12. (Paint.)

    1. Flat; without gloss; -- said of painting which has been applied purposely to have this effect.

    2. Not brilliant; not rich; thus, brown is a dead color, as compared with crimson.

13. (Law) Cut off from the rights of a citizen; deprived of the power of enjoying the rights of property; as, one banished or becoming a monk is civilly dead.

14. (Mach.) Not imparting motion or power; as, the dead spindle of a lathe, etc. See Spindle.

15. (Elec.) Carrying no current, or producing no useful effect; -- said of a conductor in a dynamo or motor, also of a telegraph wire which has no instrument attached and, therefore, is not in use.

16. Out of play; regarded as out of the game; -- said of a ball, a piece, or a player under certain conditions in cricket, baseball, checkers, and some other games. [In golf], a ball is said to lie dead when it lies so near the hole that the player is certain to hole it in the next stroke. --Encyc. of Sport. Dead ahead (Naut.), directly ahead; -- said of a ship or any object, esp. of the wind when blowing from that point toward which a vessel would go. Dead angle (Mil.), an angle or space which can not be seen or defended from behind the parapet. Dead block, either of two wooden or iron blocks intended to serve instead of buffers at the end of a freight car. Dead calm (Naut.), no wind at all. Dead center, or Dead point (Mach.), either of two points in the orbit of a crank, at which the crank and connecting rod lie a straight line. It corresponds to the end of a stroke; as, A and B are dead centers of the crank mechanism in which the crank C drives, or is driven by, the lever L. Dead color (Paint.), a color which has no gloss upon it. Dead coloring (Oil paint.), the layer of colors, the preparation for what is to follow. In modern painting this is usually in monochrome. Dead door (Shipbuilding), a storm shutter fitted to the outside of the quarter-gallery door. Dead flat (Naut.), the widest or midship frame. Dead freight (Mar. Law), a sum of money paid by a person who charters a whole vessel but fails to make out a full cargo. The payment is made for the unoccupied capacity. --Abbott. Dead ground (Mining), the portion of a vein in which there is no ore. Dead hand, a hand that can not alienate, as of a person civilly dead. ``Serfs held in dead hand.'' --Morley. See Mortmain. Dead head (Naut.), a rough block of wood used as an anchor buoy. Dead heat, a heat or course between two or more race horses, boats, etc., in which they come out exactly equal, so that neither wins. Dead horse, an expression applied to a debt for wages paid in advance. [Law] Dead language, a language which is no longer spoken or in common use by a people, and is known only in writings, as the Hebrew, Greek, and Latin. Dead plate (Mach.), a solid covering over a part of a fire grate, to prevent the entrance of air through that part. Dead pledge, a mortgage. See Mortgage. Dead point. (Mach.) See Dead center. Dead reckoning (Naut.), the method of determining the place of a ship from a record kept of the courses sailed as given by compass, and the distance made on each course as found by log, with allowance for leeway, etc., without the aid of celestial observations. Dead rise, the transverse upward curvature of a vessel's floor. Dead rising, an elliptical line drawn on the sheer plan to determine the sweep of the floorheads throughout the ship's length. Dead-Sea apple. See under Apple. Dead set. See under Set. Dead shot.

    1. An unerring marksman.

    2. A shot certain to be made. Dead smooth, the finest cut made; -- said of files. Dead wall (Arch.), a blank wall unbroken by windows or other openings. Dead water (Naut.), the eddy water closing in under a ship's stern when sailing. Dead weight.

       1. A heavy or oppressive burden.
          --Dryden.

       2. (Shipping) A ship's lading, when it consists of heavy goods; or, the heaviest part of a ship's cargo.

    3. (Railroad) The weight of rolling stock, the live weight being the load.
       --Knight.

       Dead wind (Naut.), a wind directly ahead, or opposed to the ship's course.

       To be dead, to die. [Obs.]

       I deme thee, thou must algate be dead.
       --Chaucer.

       Syn: Inanimate; deceased; extinct. See Lifeless.

n. (context nautical English) The eddying water under a slow-moving ship's counter.

Dead water is the nautical term for a phenomenon which can occur when a layer of fresh or brackish water rests on top of denser salt water, without the two layers mixing. A ship powered by direct thrust under the waterline (such as a propeller), traveling in such conditions may be hard to maneuver or can even slow down almost to a standstill. Much of the energy from the ship's propeller only results in waves and turbulence between the two layers of water, leaving a ship capable of traveling at perhaps as little as 20% of its normal speed.

The phenomenon was first described by Fridtjof Nansen, the Norwegian Arctic explorer. Nansen wrote the following from his ship Fram in August 1893 in the Nordenskiöld Archipelago near the Taymyr Peninsula:

• "When caught in dead water Fram appeared to be held back, as if by some mysterious force, and she did not always answer the helm. In calm weather, with a light cargo, Fram was capable of 6 to 7 knots. When in dead water she was unable to make 1.5 knots. We made loops in our course, turned sometimes right around, tried all sorts of antics to get clear of it, but to very little purpose."

This phenomenon is observable where glacier runoff flows into salt water without much mixing, such as in fjords.

Dead Water is a detective novel by Ngaio Marsh; it is the twenty-third novel to feature Roderick Alleyn, and was first published in 1964.

The plot concerns a murder in a small coastal village, where a local spring believed to have miraculous healing properties is enriching many of the local residents who cater to those seeking healing they can't find elsewhere. Miss Emily Pride, an old teacher of Alleyn's, inherits the place from her sister and comes to inspect her new property with plans to stop what she considers to be the vulgar exploitation of gullible and desperate people. Miss Emily begins receiving anonymous threats, apparently from locals who are upset by the proposed interruption of their new-found prosperity. After Miss Emily is physically attacked, Alleyn arrives to protect his beloved old teacher but soon the situation escalates to murder.

Category:Roderick Alleyn novels Category:1964 novels Category:Collins Crime Club books