hours of sound material broadcast between 1972 and 2002 by the Irish language radio station RTÉ Raidió na Gaeltachta, from its studios in Derrybeg, County Donegal. The museum also maintains an archive of Ulster dialects, and a large library containing over 15,000 books and periodicals. The archives and library are open to the public during office hours. Transport Museum The Transport Museum houses an extensive transport collection, and endeavours to tell the story of transport in Ireland, from its early history to the modern era. It is the largest railway collection in Ireland. The Irish Railway Collection tells the story of over 150 years of railway history. Steam locomotives, passenger carriages and goods wagons are combined with extensive railway memorabilia, interactive displays and visitor facilities. One of the collection's main attractions is Great Southern Railways Class 800 locomotive No. 800 Maeḋḃ, one of the three largest and most powerful steam locomotives ever to be built and run in Ireland. The new Road Transport Galleries boast a large collection of vehicles ranging from cycles and motorcycles to trams, buses, and cars. One of its most famous attractions is a DMC DeLorean car, the model made famous by Back to the Future, and manufactured by the DeLorean Motor Company in Belfast. The museum boasts a permanent Titanic exhibition, documenting the construction, voyage, and eventual sinking of the ill-fated vessel. The ship has long been associated with Northern Ireland, as it was constructed in the Harland and Wolff shipyards, just a few miles from the museum. The newly refurbished Titanic exhibition, tying in with the Folk museum's 'Titanic Trail' is titled TITANICa. Also on display at the museum is the Shorts manufactured Short SC.1, an experimental vertical take-off aeroplane, only two of which were ever produced. The example in the museum, XG905, crashed in 1963, ending up upside down and killing its pilot. It was, however, repaired and flown again before eventually being preserved by the museum. There is the 120 ton steel schooner Result. Recent additions to the collection include a full set of Stanley Woods racing memorabilia, and two of his bikes. Also on display is a Rex McCandless vehicle and an early Formula 1 racing car. A little known fact is that the pogo stick, of which there are examples in the museum, was invented in Comber, County Down. Previously used by local potato farmers to make holes for planting