what does the word locomotive mean

One of the easiest ways that companies can avoid animal testing is to work with products that are actually extensively utilized in human history and still have proven their safety after a while. Companies also can depend on data from natural and synthetic substances that are already previously tested on animals. Computer modeling and databases may be used to determine biological properties of ingredients making risk assessments. 3. Lasts Longer: All there's in an electric motor is often a coil and drive-shaft, instead of the numerous moving parts in a very traditional combustion engine. As well as being ultra credible the motor will last a long time. With less moving parts to concern yourself with there is little that they will not fail.