Videos highlight the work of the Cambridge University Herbarium
The Cambridge University Herbarium is presenting three new videos, produced with the support of the Cambridge Philosophical Society. The short videos, released as part of the 2024 Cambridge Festival, aim to showcase the collections and activities of the Herbarium to a general audience. Featuring the beautiful and unique collections housed in the Herbarium and the Cory and Herbarium Libraries, each video was designed to answer a question: “What is a Herbarium?”, “How are herbarium specimens made?”, and “How do plants get their scientific names?”.
The Cambridge University Herbarium (CGE) is part of the Department of Plant Sciences. Founded in the 1760s through the bequest of a few thousand specimens by John Martyn, second Professor of Botany, the University Herbarium was significantly used and expended by John Stevens Henslow, fourth Professor of Botany and co-founder of the Cambridge Philosophical Society, then by successive Professors and Curators. Containing an estimated 1.1 million dried specimens of plants and fungi collected worldwide over the course of three centuries, and with considerable collections from the British Isles and the Cambridgeshire area, CGE represents an invaluable archive of plant diversity through space and time. It was extensively used by taxonomists to write the Flora Europaea and the Flora of Great Britain and Ireland, and continues to facilitate research and education in the fields of Natural Sciences and Humanities. In recognition of the outstanding scientific and historical value of its collections, CGE was awarded designated status by the Arts Council in 2022. In recent years, to improve the accessibility of the data held in its collections, CGE has started digitising its specimens and is currently exploring new approaches, combining citizen science and artificial intelligence, to transcribe the information attached to them. More information on these projects will soon be available on the Herbarium website: herbarium.plantsci.cam.ac.ukThe videos are available on the Herbarium YouTube channel: youtube.com/@CUHerb.
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Dementia is a topic of considerable public interest. How empirical evidence has contributed to this societal awareness and indeed fear will be covered in this talk. It will span research from the 1980s when not much was understood about dementia up to contemporary perspectives. The focus will be on the epidemiological and public health evidence base, and how this relates to the results published from clinical and lab based research. The findings from UK and other high income countries of reduced age specific prevalence (%) will be explored, and the implications of results from brain based studies that dementia is not inevitable in the presence of ‘alzheimer’ type changes. The role of inequalities, risk varying across countries and time and our knowledge about protective factors have strengthened during recent years, and the balance of high risk with whole population approaches to reducing risk for society will be considered.
One of the many outstanding achievements of G I Taylor was the discovery of relatively simple statistical laws that apply to highly complex turbulent flows. The emergence of simple laws from complexity is well known in other branches of physics, for example the emergence of the laws of heat conduction from molecular dynamics. Complexity can also arise at large scales, and the structural vibration of an aircraft or a car can be a surprisingly difficult phenomenon to analyse, partly because millions of degrees of freedom may be involved, and partly because the vibration can be extremely sensitive to small changes or imperfections in the system. In this talk it is shown that the prediction of vibration levels can be much simplified by the derivation and exploitation of emergent laws, analogous to some extent to the heat conduction equations, but with an added statistical aspect, as in turbulent flow. The emergent laws are discussed and their application to the design of aerospace, marine, and automotive structures is described. As an aside it will be shown that the same emergent theory can be applied to a range of problems involving electromagnetic fields.
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