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.
This lab will touch on the basics of rocket science. You will learn to calculate just how. much effort it takes to send something into orbit by figuring out how much payload the. NASA Space Shuttle can bring to a given orbit.