 Mae'r amser yw Andrew Clark, ac rwy'n meddwl i'r cyfraith honno Lleonardo Da Vinci yn mynd i'r môl, dwi'n gweithio'r collig Stephen Parkin ac Juliana Baroni o Berkbeck College University of London. Mae'n gweithio'n gweithio'n 500 o'r anfersoedd yma o'r deall Lleonardo, i ddod i'r gwneud beth sefydlu i'r unig o'r unig o'r Unig, i ddod i'r unig i'r unig o'r sgol o'r ysgolion byddai'r gweithio'r collig. Felly, y byddwn i'n gweithio'n gweithio i Lleonardo Da Vinci yn mynd i'r môl, i'r amser Lleonardo ddod o'r'i digithu'r hanesgol yma. Mae'n gweithio'r llyfr o'r llyfr o lleonardo notebook known as the Codex Arundel. The notebook contains 285 sheets making it one of Leonardo's largest notebooks. It's primarily focused on mathematics but it also deals with other subjects such as optics, astronomy, architecture, mechanics, geometry, engineering and hydraulics, so beautifully illustrating the broad range of Leonardo's interests. This is a facsimile. We will be borrowing the original manuscript for the exhibition. It's one of the Codex Forster notebooks and it's just a lovely example of the kind of small notebook that Leonardo would have carried around with him on his travels to note down his observations which he would then later organise and compile into larger notebooks such as the Codex Leicester and the Codex Arundel. This is a facsimile copy of the Codex Leicester and we will be borrowing some of the sheets from the original manuscript for the exhibition. In contrast to the Codex Arundel, its densely written pages and intricate marginal illustrations were compiled in preparation for a treatise on the science of water which Leonardo never managed to complete and it's mainly concerned with geophysics with a particular emphasis on the study of water. It's forms, it's power, it's tides and currents and their effect on the environment geological, atmospheric, erosive and it's widely considered to be Leonardo's most important scientific notebook.