top sail sheet block - определение. Что такое top sail sheet block
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Что (кто) такое top sail sheet block - определение

SAILING TERM; SINGLE OR MULTIPLE PULLEY
Block (sail); Pulley block
  • Several different types of block connections as used on sailing ships, including the regular shackle, upset shackle, reverse shackle, reverse upset shackle, swivel jaw, swivel eye made round or oval, loose front hook, loose swivel hook,stiff swivel hook, loose side hook, stiff front hook, and side sister hook.
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topgallant sail         
SAIL OR SAILS ABOVE TOPSAILS AND BELOW ROYALS
Top gallant sail
a sail set on a topgallant mast.
Sail (disambiguation)         
WIKIMEDIA DISAMBIGUATION PAGE
SAIL; Sails (disambiguation)
A sail is any type of surface intended to move a vessel, vehicle or rotor by being placed in a wind.
Solar sail         
  • An artist's depiction of a Cosmos 1-type spaceship in orbit
  • The model of IKAROS at the 61st [[International Astronautical Congress]] in 2010
  • A photo of the experimental solar sail, NanoSail-D.
  • [[NEA Scout]] concept: a controllable [[CubeSat]] solar sail spacecraft
  • Force on a sail results from reflecting the photon flux
  • A solar sail can spiral inward or outward by setting the sail angle
  • Proposed material for the construction of solar sails - carbon fiber.
  • NASA illustration of the unlit side of a half-kilometre solar sail, showing the struts stretching the sail.
  • Znamya-2 (Знамя-2) after its deployment
TYPE OF SPACECRAFT PROPULSION THAT TAKES ADVANTAGE OF SOLAR RADIATION
Solar Sail; Light sail; Solar sails; Fast solar sailing; Sunsailor; Light sails; Light propulsion; Solar sailer; Photon Sail; Photon sails; Solar-sail; Sunsail; Deorbit sail; User:Rickyrt/Deorbit sail; Solar sailing; Wikipedia talk:Articles for creation/Deorbit sail; Sun sail; Sun sails; Photon sail; Laser sails; Laser sail; Stellar sail; Stellar sails; Star sail; Star sails; Solar-Sail; Solarsail; Solarsails; Solar-Sails; Solar-sails; Solar Sails; Photon-sail; Photon-Sail; Photonsail; Photon-sails; Photon-Sails; Photonsails; Photon Sails; Laser-sail; Laser-Sail; Laser Sail; Lasersail; Laser-sails; Laser-Sails; Laser Sails; Photonic sail; Lasersails; Photonic Sail; Photonic sails; Photonic Sails; Light-sail; Light-Sail; Light Sail; Light-sails; Light-Sails; Light Sails; Lightsails; Draft:Icarus deorbit sail
Solar sails (also known as light sails and photon sails) are a method of spacecraft propulsion using radiation pressure exerted by sunlight on large mirrors. A number of spaceflight missions to test solar propulsion and navigation have been proposed since the 1980s.
Electric sail         
  • rendering]] of [[ESTCube-1]], launched in May 2013, which was intended to be the first satellite to test an electric sail.
PROPOSED FORM OF SPACECRAFT PROPULSION USING THE DYNAMIC PRESSURE OF THE SOLAR WIND AS A SOURCE OF THRUST
Electric solar wind sail; E-sail; Electric Sail; Esail; Electric sails; Electric Sails
An electric sail (also known as an electric solar wind sail or an E-sail) is a proposed form of spacecraft propulsion using the dynamic pressure of the solar wind as a source of thrust. It creates a "virtual" sail by using small wires to form an electric field that deflects solar wind protons and extracts their momentum.
Block (sailing)         
In sailing, a block is a single or multiple pulley. One or a number of sheaves are enclosed in an assembly between cheeks or chocks.
baking tray         
  • binder clips]] to keep the parchment baking paper from sliding off.
  • Visual representation of European [[gastronorm sizes]].
FLAT BAKEWARE
Cookie sheet; Baking tray; Baking sheet
(baking trays)
A baking tray is the same as a baking sheet
. (BRIT)
N-COUNT
Beta sheet         
  • 1QRE}})
  • PDB]] file 1GWE at 0.88&nbsp;Å resolution). a) Front view, showing the antiparallel hydrogen bonds (dotted) between peptide NH and CO groups on adjacent strands. Arrows indicate chain direction, and electron density contours outline the non-hydrogen atoms. Oxygen atoms are red balls, nitrogen atoms are blue, and hydrogen atoms are omitted for simplicity; sidechains are shown only out to the first sidechain carbon atom (green). b) Edge-on view of the central two β-strands in a, showing the righthanded ''twist'' and the ''pleat'' of C<sup>α</sup>s and sidechains that alternately stick out in opposite directions from the sheet.
  • Psi-loop motif from [[Carboxypeptidase A]]
  • The Greek-key motif
  • β-hairpin]] motif
  • 2PEC}})
  •  Ramachandran (''φ'',&nbsp;''ψ'') plot of about 100,000 high-resolution data points, showing the broad, favorable region around the conformation typical for β-sheet amino acid residues.
COMMON MOTIF OF REGULAR SECONDARY STRUCTURE IN PROTEINST; STRETCH OF POLYPEPTIDE CHAIN TYPICALLY 3 TO 10 AMINO ACIDS LONG WITH BACKBONE IN AN EXTENDED CONFORMATION
Beta-sheet; Beta-pleated sheet; Β-sheet; Beta strand; Beta sheets; Β pleated sheets; Beta pleated sheet; Beta meander; Psi loop; Β sheet; Β sheets; Β-sheets; Beta ribbon; B pleated sheets; B sheet; B sheets; B-sheet; B-sheets; Β-strand; Beta Sheet; Beta Sheets; Pleated sheet; Beta-pleated sheets; Beta-Pleated Sheet; Greek key (protein structure); Β-pleated sheets; Betameander; Β strands; Β strand; Beta-strand
The beta sheet, (β-sheet) (also β-pleated sheet) is a common motif of the regular protein secondary structure. Beta sheets consist of beta strands (β-strands) connected laterally by at least two or three backbone hydrogen bonds, forming a generally twisted, pleated sheet.
Sail shade         
  • Shade sail over playground in Australia
  • A shade covering play area
Shade sails; Shade cloth; Sail shade
A shade sail is a device to create outdoor shade based on the basic technology as a ship's sail. Shade sails use a flexible membrane tensioned between several anchor points.
Neural spine sail         
  • The tall neural spines of a [[bison]] form a hump rather than a sail.
  • [[Crested chameleon]], an extant reptile with a sail on its back
  • ''[[Spinosaurus]]'', a dinosaur with a sail
ANATOMICAL FEATURE IN SOME TETRAPODS
Spine sail; Neural sail
A neural spine sail is a large, flattish protrusion from the back of an animal formed of a sequence of extended vertebral spinous processes and associated tissues. Such structures are comparatively rare in modern animals, but have been identified in many extinct species of amphibians and amniotes.
sheeting         
  • Assortment of different colored bed sheets
  • Weavers work on a hospital bed sheet on a traditional manual loom in [[Faisalabad]], [[Pakistan]], in 2010
RECTANGULAR PIECE OF CLOTH OR LINEN COTTON USED TO COVER A MATTRESS
Sheeting; Bed sheets; Bedsheets; Fitted sheet; Stretch sheet; Sheets; Bed-sheet; Contour sheet
¦ noun material formed into or used as a sheet.

Википедия

Block (sailing)

In sailing, a block is a single or multiple pulley. One or a number of sheaves are enclosed in an assembly between cheeks or chocks. In use, a block is fixed to the end of a line, to a spar, or to a surface. A line (rope) is reeved through the sheaves, and maybe through one or more matching blocks at some far end, to make up a tackle.

The purchase of a tackle refers to its mechanical advantage. In general the more sheaves in the blocks that make up a tackle, the higher its mechanical advantage. The matter is slightly complicated by the fact that every tackle has a working end where the final run of rope leaves the last sheave. More mechanical advantage can be obtained if this end is attached to the moving load rather than the fixed end of the tackle.

There are various types of blocks that are used in sailing. Some blocks are used to increase mechanical advantage and others are used simply to change the direction of a line. A ratchet block turns freely when a line is pulled in one direction but does not turn the other direction, although the line may slip past the sheave. This kind of block makes a loaded line easier to hold by hand, and is sometimes used on smaller boats for lines like main and jib sheets that are frequently adjusted.

A single, large, sail-powered warship in the mid-19th century required more than 1,400 blocks of various kinds.