Useful answers

Bike-engined car:

           A bike-engined car is a small or light weight car that is powered by an engine that was designed for use in a motorcycle. The advantage for car builders is that small car engines in high states of tune are relatively rare whereas large motorcycle engines are frequently designed for high specific outputs. The drawbacks of using bike engines in cars is the lack of reverse gear, lack of low end torque (both characteristics making parking difficult) and that the engines get a short lifespan since they have to pull more weight than they were designed for. Most of these cars use the sequential gearbox from the motorcycle, allowing for faster shifting than a traditional automotive gearbox. 

 

 

BMW Info

Bayerische Motoren Werke:

First BMW Motor:
           
         BMW began building motorcycle engines and then motorcycles after World War I. Its motorcycle brand is now known as BMW Motorrad. Their first successful motorcycle, after the failed Helios and Flink, was the "R32" in 1923. This had a "boxer" twin engine, in which a cylinder projects into the air-flow from each side of the machine. Apart from their single cylinder models (basically to the same pattern), all their motorcycles used this distinctive layout until the early 1980s. Many BMWs are still produced in this layout, which is designated the R Series. 

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What material used in bullet?

Prabaharan ans: 
Bullets are made of a variety of materials. Lead or a lead alloy (typically containing antimony) is the traditional bullet core material. Traditional bullet jackets are made of copper or gilding metal, an alloy of copper and zinc. There are many other materials that are used in bullets today, including aluminum, bismuth, bronze, copper, plastics, rubber, steel, tin, and tungsten.

Bullet lubricants include waxes (traditionally carnauba wax made from the carnauba palm), oils, and molybdenum disulfide (moly). Modern wax and oil formulas are generally not made public. Moly is a recent innovation; this naturally occurring mineral sticks to metal on contact. The bullet making process can also use grease and oils to lubricate the bullet during machining and pressing steps. This lubrication prevents damage to the bullet or the machinery by allowing the bullet and machinery to move against each other without sticking. Solvents are used to remove grease and oil from the bullet afterward.

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