It may be an actual helmet or a magical sign with a rather poetic name.

Bicycle helmets may help reduce injury in the event of a collision or accident, and a certified helmet is legally required for some riders in some jurisdictions.

A goalkeeper who is wearing only a helmet and different coloured shirt may remove the helmet and play anywhere on the field and retains goalkeeping privileges even if they do not have chance to replace the helmet when play returns to their defensive circle.

Migration Period golden bracteates, Vendel era helmet plates, a pair of identical Germanic Iron Age bird-shaped brooches, Viking Age objects depicting a moustached man wearing a helmet, and a portion of the 10th or 11th century Thorwald's Cross may depict Odin with one of the ravens.

Another possible origin may be from the medieval period when the wearing of a helmet or " helm " was commonplace on the battlefield.

The Negau helmet inscription ( 2nd century ..) may actually record the earliest form, teiva, but this interpretation is tentative.

Apart from two or three representations of ( ritual ) helmets – with protrusions that may be either stylised ravens, snakes or horns – no depiction of Viking Age warriors ' helmets, and no preserved helmet, has horns.

Lower-level riders may use a derby, hunting cap, or ASTM / SEI-approved Equestrian helmet.

A black or navy hunt cap or derby hat may be worn, although many riders use an equestrian helmet, which are considered safer.

The rider is required to wear a protective vest, as well as an ASTM / SEI / BS approved equestrian helmet, properly fastened at all times when jumping ( and may be eliminated if this is not done ).

However, a protective equestrian helmet with harness is required, and riders always wear a short hunt coat, except when weather is unreasonably warm, when, at the discretion of the technical delegate, jackets may be considered optional.

The name is based on Ans-= Æsir, part of German mythology, and-helm, which may refer to a helmet itself, protection or " protected by gods ".

* As of 2010 all players must wear a helmet, and may wear other protection such as shinguards and / or a special kind of glove called an ashguard.

A fumble may be forced by a defensive player who either grabs or punches the ball or butts the ball with his helmet ( a move called " tackling the ball ").

Modern body armor may combine a ballistic vest with other items of protective clothing, such as a combat helmet.

Its chin bar may be pivoted upwards ( or, in some cases, may be removed ) by a special lever to allow access to most of the face, as in an open face helmet.

The rider may thus eat, drink or have a conversation without unfastening the chinstrap and removing the helmet, making them popular among motor officers.

Since the chin bar section also protrudes further from the forehead than a three-quarters visor, riding with the helmet in the open position may pose increased risk of neck injury in a crash.

Observation and unofficial testing suggest that significantly greater protection exists beyond that for an open face helmet, and may be enough to pass full-face helmet standardized tests, but the extent of protection is not fully established by all standards bodies.

More often than not, a second light will be mounted to the helmet for quick transition if the primary fails.

However, the orange helmet with black tiger stripes continued to be the team's primary trademark.

He has not played major roles in any of his own films, but he did put in a brief appearance as a gynecologist in The Fly ; he can also be glimpsed among the sex-crazed hordes in Shivers ; he can be heard as an unseen car-pound attendant in Crash ; his hands can be glimpsed in eXistenZ ; and he appeared as a stand-in for James Woods in Videodrome for shots in which Woods ' character wore a helmet that covered his head.

The comparison was helped by the Pickelhaube or spiked helmet worn by German forces until 1916, which would be reminiscent of images depicting ancient Hun helmets, some British found.

He designed Hermes ' winged helmet and sandals, the Aegis breastplate, Aphrodite's famed girdle, Agamemnon's staff of office, Achilles ' armor, Heracles ' bronze clappers, Helios ' chariot ( and one for himself, to be used on account of his lameness ), the shoulder of Pelops, and Eros ' bow and arrows.

Falling can be fatal if a helmet is not worn to protect against serious head trauma.

Modern projects usually entail the knitting of hats or helmet liners ; the liners provided for soldiers must be of 100 % worsted weight wool and be crafted using specific colors.

The Knights are led by a man who is approximately 12 feet tall with disproportionately short arms and reindeer antlers inserted into his helmet ( played by Michael Palin standing on a ladder ; the original screenplay suggested that he be played by " Mike standing on John's shoulders ").

The fully armoured Viking raider would wear an iron helmet and a maille hauberk, and fight with a combination of axe, sword, shield, spear or great " Danish " two-handed axe, although the typical raider would be unarmoured, carrying only a shield and spear ; swords and axes were much less common.

After 1862 the spiked helmet ceased to be generally worn by the Russian Army, although it was retained until 1914 by the Cuirassier regiments of the Imperial Guard and the Gendarmerie.

The Überzug was intended to protect the helmet from dirt and reduce its combat visibility, as the brass and silver fittings on the Pickelhaube proved to be highly reflective.

In modified forms the new Stahlhelm helmet would continue to be worn by German troops into World War II.

The spiked helmet continues to be part of a clichéd mental picture of Imperial Germany, especially in the United Kingdom.

The basic dress of a player is a protective equestrian helmet ( usually of a distinctive color, to be distinguished at the considerable distance from which onlookers are watching the game ), riding boots to just below the knees, white trousers ( often ordinary denim jeans ), and a coloured shirt bearing the number of the player's position.

For long track skaters the same equipment should be worn as short track racers but with the exception of a helmet, shin pads, knee pads, and neck guard which is not required.

At first, the team had planned to wear silver helmets at home and blue helmets on the road, but since NFL rules forbid the use of multiple helmets, the team held the fan poll to decide which color helmet would be worn.

He ordered that it be changed to a helmet.

Picton overhears and points out that if he ever meets a cuirassier, he'll be lucky to escape with his life, never mind a helmet.

A blade or spike tended to be used against other parts of the body where the armour was thinner, and penetration was easier, than through the helmet.

A prototype white helmet was developed for the team prior to the 1974 season but was never worn.

Armour did not always cover all of the body ; sometimes no more than a helmet and leg plates were worn.

The blue jersey is also worn during Tuesday home games with the standard home cap and helmet.

Later variants included the Chalcidian helmet, a lightened version of the Corinthian helmet, and the very simple Pilos helmet worn by the later Spartan hoplites.

This was originally a cloth worn over the back of the helmet as partial protection against heating by sunlight.

This includes a helmet ( cage worn if certain age ), shoulder pads, elbow pads, mouth guard, protective gloves, heavily padded shorts ( also known as hockey pants ), athletic cup, shin pads, skates, and ( optionally ) a neck protector.

Combat uniforms in olive-green, khaki-drab, or woodland camouflage pattern, worn with the United States PASGT helmet, are virtually indistinguishable from those worn until the 1990s by the United States Army

" bonnet ", a general word for headgear ), also " Pickelhelm ," was a spiked helmet worn in the 19th and 20th centuries by German military, firefighters, and police.

The Pickelhaube also influenced the design of the British army Home Service helmet, as well as the custodian helmet still worn by police in England and Wales.

The ceremonial uniform ( 1 ) for festivals, usually worn only by the ceremonial Artillery Company, includes red trousers with a green stripe ( two thinner gold stripes for officers ), a double breasted green jacket ( with red and white lanyard, red cuffs and collars, gold buttons, and red and white dress epaulettes ( for officers the epaulettes are gold, and there is a gold edge to the red cuffs )), a black leather belt, and a black helmet decorated with red and white feathers.

At the upper levels, a top hat that matches the rider's coat is traditionally worn, though in some competitions, an ASTM / SEI approved helmet is show legal.

If helmet covers are used, they are required to be black or dark blue though some now include national colors where they are entitled to be worn.

PPE worn by firefighters include bunker gear, self-contained breathing apparatus, a helmet, safety boots, and a PASS device.

* The Corinthian helmet, a style of helmet worn by hoplites in classical Greece