Pumpkin, squash and sunflower seed kernels are all rich in both zinc and copper. Roasted pumpkin and squash seeds contain 9 milligrams of zinc per cup, while toasted sunflower seeds contain 7 milligrams in every cup.
Mechanical designers create designs for machines and mechanical devices. They combine drafting skills with mechanical engineering knowledge to assist product development engineers in the manufacture of new mechanical devices.echanical designers must have expert knowledge of mechanical and electrical engineering, computer drafting programs, and physical construction techniques. A career as a mechanical designer requires an aptitude for drawing.
A jewelry designer may create one-of-a-kind pieces for high-end jewelers or an entire line for a mass-market fashion designer. They may also sell their jewelry themselves. Designers can create jewelry entirely by hand or they can begin the design process by using computer-aided design (CAD) software. As with many artists, jewelry designers are often freelance workers and must continually seek assignments or customers in a competitive market.