Hello Flameridge. Choosing a perfume is like choosing what to wear, what to eat, what type of music to listen to, etc. It all boils down to personal preference. Your brain reacts to sensory input, (when you use your sense of smell). The best way to find out what you like is to sample different fragrances. I would love to share some great fragrances with you. I will be more than happy to send you some Avon samples. Just contact me with your request. You can also browse my Avon website for more information on Avon fragrances. shop.avon.com
Links: shop.avon.com

There are many types of engineers; mechanical, civil, chemical, electrical, industrial, and even computer engineering as Spencer Drafting commented. They each have very specialized knowledge for that particular field.

Mechanical Engineers apply the principles of physics and materials science in the analysis, design, manufacturing, and maintenance of mechanical systems. It requires an understanding of core concepts including mechanics, kinematics, thermodynamics and materials science and structural analysis (*source Wikipedia). Mechanical Engineers use these principles to design and analyze motor vehicles, engines, aircraft, vacuum processing, nuclear systems and just about anything that utilizes mechanical parts.

Scorpio Design Services is a consulting business that provides Mechanical Engineering contract work for businesses needing help with mechanical drawings and project planning. www.scorpiodesignservices.com www.spencerdraftinganddatabasedesign.com
Links: www.scorpiodesignservices.com, www.spencerdraftinganddatabasedesign.com