Dart (missile) in the context of "Kestros (weapon)"

The ballista (Latin, from Greek βαλλίστρα ballistra and that from βάλλω ballō, "throw"), plural ballistae or ballistas, sometimes called bolt thrower, was an ancient missile weapon that launched either bolts or stones at a distant target.

Developed from earlier Greek weapons, it relied upon different mechanics, using two levers with torsion springs instead of a tension prod (the bow part of a modern crossbow). The springs consisted of several loops of twisted skeins. Early versions projected heavy darts or spherical stone projectiles of various sizes for siege warfare. It developed into a smaller precision weapon, the scorpio, and possibly the polybolos.

A spear-thrower, spear-throwing lever, or atlatl (pronounced /ˈætlætəl/ or /ˈɑːtlɑːtəl/; Nahuatl ahtlatl Nahuatl pronunciation: [ˈaʔt͡ɬat͡ɬ]) is a tool that uses leverage to achieve greater velocity in dart or javelin throwing, and includes a bearing surface that allows the user to store energy during the throw.

It may consist of a shaft with a cup or a spur at the end that supports and propels the butt of the spear. It's usually about as long as the user's arm or forearm. The user holds the spear-thrower in one hand, gripping near the end farthest from the cup. The user puts the butt end of the spear, or dart, in the cup, or grabs the spur with the end of the spear. The spear is much longer than the thrower. The user holds the thrower at the grip end, with the spear resting on the thrower and the butt end of the spear resting in the thrower's cup. The user can hold the spear, with the index and thumb, with the same hand as the thrower, with the other fingers. The user reaches back with the spear pointed at the target. Then they make an overhand throwing motion with the thrower while letting go of the spear with the fingers.

Spearfishing is the practice of fishing using handheld, elongated sharp-pointed tools, such as a spears, gigs, and harpoons. It was one of the earliest fishing techniques used by mankind, and has been deployed in artisanal fishing throughout the world for millennia.

Early civilizations were familiar with the custom of spearing fish from rivers and streams using sharpened sticks. Modern spearfishing usually involves the use of underwater swimming gear and slingshot-like elastic spearguns or compressed gas powered pneumatic spearguns, which launch a tethered dart-like projectile to strike the target fish. Specialised techniques and equipment have been developed for various types of aquatic environments and target fish. Spearfishing uses no bait and is highly selective, with no by-catch, but inflicts lethal injury to the fish and thus precludes catch and release.

Throwing is a physical action that consists of mechanically accelerating a projectile and then releasing it into a ballistic trajectory, usually with the aim of impacting a distant target. Throwing typically refers to hand-throwing by animals with prehensile forelimbs, in which the projectile is grasped in a hand and the proximal limb segments move through compounded kinematic chains to impart a mechanically advantaged swinging motion. For other animals, the definition of throwing is somewhat unclear, as other actions such as spitting or spraying may or may not be included.

Primates are the most proliferative throwers in the animal kingdom, and they typically throw feces as a form of agonistic behavior. Of all primates, humans are by far the most capable throwers, able to throw a large variety of projectiles with great force and accuracy. Throughout human evolution, humans (especially Homo sapiens) have used hand-thrown projectiles for hunting and in warfare — first through rock-throwing, then refined weapon-throwing (e.g. spear, axe or dart), and into modern day with payload-carrying devices such as hand grenades, flashbangs and tear gas canisters.

A bolt or quarrel is a dart-like projectile used by crossbows. The word quarrel is from the Old French quarrel (> French carreau) "square thing", specialized use as quarrel d'arcbaleste (> carreau d'arbalète) "crossbow quarrel", referring to their typically square heads. Although their lengths vary, bolts are typically shorter and heavier than traditional arrows shot with longbows.

Shooting is the act or process of discharging a projectile from a ranged weapon (such as a gun, bow, crossbow, slingshot, or blowpipe). Even the acts of launching flame, artillery, darts, harpoons, grenades, rockets, and guided missiles can be considered acts of shooting. When using a firearm, the act of shooting is often called firing as it involves initiating a combustion (deflagration) of chemical propellants.

Shooting can take place in a shooting range or in the field, in shooting sports, hunting, or in combat. The person involved in the shooting activity is called a shooter. A skilled, accurate shooter is a marksman or sharpshooter, and a person's level of shooting proficiency is referred to as their marksmanship.

Egg-and-dart, also known as egg-and-tongue, egg-and-anchor, or egg-and-star, is an ornamental device adorning the fundamental quarter-round, convex ovolo profile of moulding, consisting of alternating details on the face of the ovolo—typically an egg-shaped object alternating with a V-shaped element (e.g., an arrow, anchor, or dart). The device is carved or otherwise fashioned into ovolos composed of wood, stone, plaster, or other materials.

Egg-and-dart enrichment of the ovolo molding of the Ionic capital was used by ancient Greek builders, so it is found in ancient Greek architecture (e.g., the Erechtheion at the Acropolis of Athens), was used later by the Romans and continues to adorn capitals of modern buildings built in Classical styles (e.g., the Ionic capitals of the Jefferson Memorial in Washington, D.C., or the ones of the Romanian Athenaeum from Bucharest). Its ovoid shape (the egg) and serrated leaf (the dart) are believed to represent the opium poppy and its leaves. The moulding design element continues in use in neoclassical architecture. As a mass-produced architectural motif at the turn of the 19th to the 20th century, it can, when seen alongside dentils (tooth-like blocks of wood in rows), be used to date a building to the Edwardian period, which began with the death of Queen Victoria in 1901.

Fletching is the fin-shaped aerodynamic stabilization device attached on arrows, crossbow bolts, darts, and javelins, typically made from light semi-flexible materials such as feathers or bark. Each piece of such a device is a fletch, also known as a flight or feather. A fletcher is a person who attaches fletchings to the shaft of arrows. Fletchers were traditionally associated with the Worshipful Company of Fletchers, a guild in the City of London.

The word is related to the French word flèche, meaning 'arrow', via the ultimate root of Old Frankish fliukka.