Melania Trump called her husband intensely loyal to family during a widely watched speech Monday night at the Republican National Convention. But she isn't his first wife. Of Donald Trump's three marriages, his longest marriage was to Ivana Trump, the mother of his three oldest children. Their daughter, Ivanka Trump, was scheduled to introduce her father Thursday night before he gave his formal presidential nomination acceptance speech.
It launched for the first time on mission STS-1 on 12 April 1981, the first flight of the Space Shuttle program. Over 22 years of service it completed 27 missions before disintegrating during re-entry near the end of its 28th mission, STS-107 on 1 February 2003, resulting in the deaths of all seven crew members.olumbia returned to space on January 12, 1986, with the launch of STS-61-C. The mission's crew included Dr. Franklin Chang-Diaz, as well as the first sitting member of the House of Representatives to venture into space, Bill Nelson. The next shuttle mission, STS-51-L, was undertaken by Challenger.
50 and 20. The diagram is based on the Roman hand abacus at the London Science Museum. The lower groove marked I indicates units, X tens, and so on up to millions. The beads in the upper shorter grooves denote fivesâfive units, five tens, etc. , essentially in a bi-quinary coded decimal place value system.he name semuncia denotes 1/2 of an uncia or 1/24 of the base unit, the As. Likewise, the next character is that used to indicate a sicilicus or 1/48 of an As, which is 1/4 of an uncia. These two characters are to be found in the table of Roman fractions on page 75 of Graham Flegg's book.