A. E. writes: I have a 1981 Charles/Diana wedding coin, special edition 25 pence silver piece. I thought that Great Britain doesnât make a 25 pence.It is about the size of a 50 cent piece.he copper-nickel issues are worth about US$1, issued in a plastic bank envelope, CuNi specimen, issued in a Royal Mint folder, about US$3.00. A silver (sterling) proof version was marketed by the British Royal Mint (28.27 grams sterling silver), mintage: 218,000. Value: about $25.
How long do you have to study to become an astronaut? A: NASA requires its mission specialists and its commander and pilot astronauts to have bachelor's degrees in biological science, physical science, mathematics or engineering; most people take four years to earn these degrees.
How to Become an Aerospace Engineer. A bachelor's degree is typically required to start out in aerospace engineering. Students who want to become an aerospace engineer should study physics, chemistry, and higher mathematics, such as trigonometry, algebra, and calculus.ertain universities also offer five-year programs in aerospace engineering. Students who complete these programs receive not only a bachelor's degree, but a master's degree as well. Engineers who hold a master's degree or higher are able to teach at universities and work on research and development projects.