Another opinion is that Homer was heir to an unbroken tradition of oral epic poetry reaching back some 500 years into Mycenaean times. The case is set out in The Singer of Tales by Albert B. Lord, citing earlier work by folklorist and mythographer Milman Parry.
Stationary Formations. There are two security formations used when the vehicles are not moving: herringbone and coil. Herringbone. The herringbone (Figure 7-7) is used to disperse the platoon when traveling in the column formation.It maybe used during air attacks or when the platoon must stop during movement.his formation is used when enemy contact is possible. The column of wedges (Figure 7-3) is one of the most frequently used platoon movement formations. It allows for optimum flexibility, security, and good command and control. It is best employed when traveling or traveling overwatch conditions are warranted.
Miniature herringbone gears Image credit: Run Ryder | Perpendicular herringbone gears Image credit: Wikimedia | Crossed double helix gear Image credit: 1 DKM 2B. Herringbone gears, also called double helical gears, are gear sets designed to transmit power through parallel or, less commonly, perpendicular axes. The unique tooth structure of a herringbone gear consists of two adjoining, opposite helixes that appear in the shape of the letter 'V'.