Expanding bullet

Expanding bullets are projectiles designed to expand on impact, increasing in diameter to limit penetration and/or produce a larger diameter wound for faster incapacitation. Therefore, they are used for hunting and by some police departments, but are generally prohibited for use in war. Two typical designs are the hollow-point bullet and the soft-point bullet.

Function and use

Expanding bullets are designed to expand on impact, sometimes as much as twice the diameter. This will slow the bullet down and more of its kinetic energy will be transferred to the target, creating a larger wound channel. For this reason expanding bullets are often used in hunting because their stopping power increases the chance of a quick kill. There are a number of designs used for hunting different game and for use in weapons with different muzzle velocities. Bullets used for medium and large game need better penetration, which means bullets designed to maintain integrity and for less expansion. The velocities at which the bullets hit affect their expansion and penetration.

Washtub bass

The washtub bass, or gutbucket, is a stringed instrument used in American folk music that uses a metal washtub as a resonator. Although it is possible for a washtub bass to have four or more strings and tuning pegs, traditional washtub basses have a single string whose pitch is adjusted by pushing or pulling on a staff or stick to change the tension.

The washtub bass was used in jug bands that were popular in some African Americans communities in the early 1900s. In the 1950s, British skiffle bands used a variant called a tea chest bass, and during the 1960s, US folk musicians used the washtub bass in jug band-influenced music.

Variations on the basic design are found around the world, particularly in the choice of resonator. As a result, there are many different names for the instrument including the "gas-tank bass", "barrel bass", "box bass" (Trinidad), "bush bass" (Australia), "babatoni" (South Africa), "tingotalango" (Cuba), "tulòn" (Italy), "laundrophone" and others.

The hallmarks of the traditional design are simplicity, very low cost and do-it-yourself construction, leading to its historical association with lower economic classes. These factors also make it quite common for modern-day builders to promote modifications to the basic design, such as adding a finger board, pedal, electronic pickup, drumhead, or making the staff immovable.