Friday 11th April 2025 Robert Hooke FRS – A half-forgotten scientific genius

Professor Alan Bassindale

Friday11th April2025 7.30 pm in the BRLSI, Bath, and on Zoom

The image is the flea from Micrographia by Robert Hooke

Robert Hooke FRS, 1635-1703, was the first professional scientist and he played a key role in developing contemporary experimental science. He was an outstanding scientist, engineer, astronomer (laying foundations for William Hershel), architect, artist, microscopist, and a pioneer in many other fields. He was not simply an observer; he always sought to explain his observations and experiments and frequently developed new theories. The most familiar aspects of his legacy today are: Micrographia, his groundbreaking book on the microscopic world, with his wonderful illustrations, including the flea; the Monument, a giant zenith telescope and a memorial to the great fire of London; and Hooke’s law of elasticity, now taught in Key Stage 3 physics.

His observations and theories about fossils paved the way for the work Charles Moore, whose fossil collection is in the care of BRLSI.

Alan Bassindale will suggest that Hooke’s childhood on the Isle of Wight helps us to explain his extensive range of lifelong interests. He will illuminate Hooke’s achievements as a scientist using both Micrographia and his astronomical discoveries. Alan will discuss Hooke’s various feuds, with Newton and others, that may have contributed to his relative obscurity.

Alan Bassindale is an Emeritus Professor of Chemistry and former Pro-Vice-Chancellor of The Open University. He has a longstanding interest in the history of science.

Tickets (£6 or £3 for BRLSI or Herschel Society members and students, proceeds to the BRLSI) available here.

Friday 6th December 2024 New Results from Gaia


Crystallising white dwarfs, spinning minor planets, and our Galaxy’s dark matter halo

Professor Michael Perryman

The image shows the integration of the M1 primary mirror on the torus of the Gaia spacecraft © EADS Astrium SAS, France


Science populariser Ethan Siegel has described the European Space Agency’s Gaia mission as “One of the most remarkable space science missions that most people have never heard of”. It is 10 years into its pioneering objective of mapping out the three-dimensional positions and motions of two billion stars in our Galaxy and beyond. This is providing great advances in understanding the way that stars are born and evolve, and yielding remarkable insights into the structure and evolution of our own Galaxy.

I will look at just three examples of how astronomers are using these data: to peer inside white dwarfs and understand how they are cooling over billions of years, to examine how solar radiation pressure is re-arranging the orbits and rotation of thousands of minor planets in our Solar System, and to look at the fossil records of cannibalised galaxies in our Galaxy’s outer halo to see how our own Milky Way galaxy came into existence.


Michael Perryman obtained a degree in physics, and a PhD in radio astronomy, at Cambridge University. During a 30-year career with the European Space Agency, he was the scientific leader of the Hipparcos space astrometry mission between 1981-1997, and of the follow-on Gaia space astrometry mission between 1995-2008. He was Professor of Astronomy at Leiden University, The Netherlands, between 1993-2009, and has received various awards for his leadership of space astrometry, including the Gold Medal of the French Astronomical Society, the Academy Medal of the Royal Netherlands Academy of Arts & Sciences, the Tycho Brahe Prize of the European Astronomical Society, and the international Shaw Prize in Astronomy 2022. He has held a position as Adjunct Professor, University College Dublin since 2013.

A video recording wll be available here shortly..