Cutlery mustard spoon and lettuce fork. Steel was always used for more utilitarian knives, and pewter was used for some cheaper items, especially spoons. From the nineteenth century, electroplated nickel silver (EPNS) was used as a cheaper substitute for sterling silver. In 1913, the British metallurgist Harry Brearley discovered stainless steel by chance and this metal has come to be the predominant one used in cutlery. An alternative is melchior, corrosion-resistant nickel and copper alloy, which can also sometimes contain manganese and nickel-iron. Plastic cutlery is made for disposable use, and is frequently used outdoors for camping, excursions, and barbecues for
Heidi Messer in an exhibition hosted during a private mission on the International Space Station. The reception for these works benefited the Challenger Center for Space Science Exploration and featured the astronaut Buzz Aldrin. Messer served on the 2012 Wall Street Journal Executive Task Force on Women and participated in the 2014 Wall Street Journal CIO Network as a subject matter expert. In 2013, Messer was selected to serve as a member of Comptroller Scott Stringer's Transition Committee. In 2012, Messer was selected as one of the 100 Most Intriguing Entrepreneurs by Goldman Sachs as part of their Builders and Innovators Summit.