1 Taking care of your nails can help reduce your nail-biting habit and encourage you to keep your nails attractive.  Have a manicure regularly or use nail polish. Men can use a clear polish. Wearing artificial nails may stop you from biting your nails and protect them as they grow out.
Top 10 unbelievable historical concurrencies. A girder is a structural support which is designed to carry transverse loads, and to transfer those loads to vertical supports such as columns. Girders are utilized in the construction of buildings, bridges, and some types of heavy equipment, and they come in a range of styles.
A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt, or transfer of power between the shaft and cable or belt. In the case of a pulley supported by a frame or shell which does not transfer power to a shaft, but is used to guide the cable or exert a force, the supporting shell is called a block, and the pulley may be called a sheave. A pulley may have a groove or grooves between flanges around its circumference to locate the cable or belt. The drive element of a pulley system can be a rope, cable, belt, or chain. Hero of Alexandria identified the pulley as one of six simple machines used to lift weights.