Construct · 3 fields · 3 citations

Where does header collide?

One name. Different field. Different construct. One map.

● jingle · one word, three carriers Nearest construct by meaning·not indexed
header3 CONSTRUCTSHeader (brick)HEADER & STRETCHERPacket headerRFC 791 · IP HEADERHeader (football)SHEWCHENKO · BALL HEADING

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1981Packet header2005Header (football)2021Header (brick)
2026

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Masonry

A brick or stone laid across the wall's thickness, its short end showing on the face.

In masonry, a header is a unit laid so that its length runs through the thickness of the wall and only its end (the short face) appears on the wall surface, binding the wall's layers together; it contrasts with a stretcher, whose long face shows. The pairing is defined in the Encyclopedic Dictionary of Archaeology entry on header and stretcher (2021), where bond patterns are classified by how the two are arranged. Here a header is a transverse masonry unit, not a block of metadata or a struck ball.[1]

Unit
One masonry unit laid transverse to the wall face (end showing).
Recovery means
Look for the short end of a brick or stone on the wall face, tying the wall's thickness.
Measured by
Counted and classified by position in the bond pattern.

Computer Networking

The structured metadata prepended to a payload in a protocol data unit.

In computer networking, a header is the block of control information placed at the front of a packet, ahead of the payload, carrying fields such as addresses, length, and checksums that routers and hosts use to deliver and interpret the data. The Internet Protocol specification (RFC 791, Postel, 1981) defines the IPv4 header field by field, fixing how each datagram is read. Here a header is prepended data describing a message, not a transverse brick or a headed ball.[2]

Unit
One block of leading control fields in a protocol data unit, in bits/bytes.
Recovery means
Find the fixed control fields that precede the payload in a packet.
Measured by
Parsed from the packet according to the protocol specification.

Sports Biomechanics

Playing the ball with the head in association football (a 'header').

In association football, a header is the act of striking or directing the ball with the head, a deliberate skill whose repeated impacts have become a focus of biomechanical study. Shewchenko and colleagues' 2005 Heading in football. Part 2 in the British Journal of Sports Medicine models the biomechanics of ball heading and the head's response. Here a header is a head-to-ball action in sport, not a transverse brick or a packet's metadata.[3]

Unit
One head-to-ball contact (one headed play), characterized by impact kinematics.
Recovery means
Identify a play in which the ball is struck or directed with the head.
Measured by
By head-impact kinematics (acceleration) from sensors or video.

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Nearby collisions

packet3 fields · 3 citationsjingle · one word, three constructsaction3 fields · 6 citationsjingle · one word, three constructsassociation4 fields · 4 citationsjingle · one word, four constructs

References

  1. Header and stretcher. (2021). In Encyclopedic Dictionary of Archaeology (pp. 584-584). Springer International Publishing. https://doi.org/10.1007/978-3-030-58292-0_80165
  2. Postel, J. (1981). Internet Protocol (RFC 791). RFC Editor. https://doi.org/10.17487/rfc0791
  3. Shewchenko, N., Withnall, C., Keown, M., Gittens, R., & Dvořák, J. (2005). Heading in football. Part 2: Biomechanics of ball heading and head response. British Journal of Sports Medicine, 39(Suppl. 1), i26–i32. https://doi.org/10.1136/bjsm.2005.019042

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