The Old Ashmolean Building: A Living Landmark of Scientific Heritage

Standing on Broad Street in the heart of Oxford, the Museum of the History of Science occupies a building that is itself a museum piece. Designed by architect Thomas Wood and constructed between 1678 and 1683, the Old Ashmolean Building was the first purpose-built public museum for science and art in the world. Its elegant stone facade, with a central doorway flanked by Ionic columns and a finely carved coat of arms, reflects the intellectual ambition of the early Royal Society. The building originally housed the Ashmolean Museum’s natural history and curiosities until 1925, when the institution split: the art collection moved to a new neoclassical building on Beaumont Street, while the scientific instrument collection remained in the original structure, establishing the independent Museum of the History of Science.

Walking through the entrance, visitors step directly into the building’s original gallery—a long, high-ceilinged room lined with display cases that have been in continuous use for over three centuries. The space retains its seventeenth-century proportions, with large windows that flood the room with natural light, a deliberate design choice that allowed scholars to examine objects in detail. The building’s central location, opposite the Sheldonian Theatre and adjacent to the Bodleian Library, places it at the crossroads of Oxford’s academic and tourist life. The museum’s architectural integrity has been carefully preserved: modern climate control systems are discreetly integrated, and original features such as the wooden staircase and the basement vaults (once used for chemical experiments) remain intact. This living landmark is not merely a container for artifacts; it is an artifact itself, offering visitors a direct connection to the dawn of public science.

Unrivaled Collections: A Window into Scientific Discovery

The museum holds approximately 10,000 objects that trace the development of scientific thought from the medieval Islamic world to twentieth-century physics. Only a fraction is on permanent display, but every artifact—whether a gleaming brass astrolabe or a fragile glass retort—represents a primary document of human ingenuity. The collection is organized into several thematic areas, each revealing a distinct chapter in the story of how we came to understand the natural world.

Astrolabes and the Art of Celestial Measurement

With over 120 examples dating from the 9th to the 19th centuries, the museum holds the world’s largest and most comprehensive collection of astrolabes. These brass instruments, used to solve problems of time, latitude, and celestial position, showcase the mathematical sophistication of Islamic, European, and Indian cultures. Each astrolabe is a unique blend of science and art, engraved with intricate scales, zodiacal figures, and often decorated with calligraphy or geometric patterns. The collection includes examples from renowned makers such as Ahmad ibn al-Sarraj of Syria (1326) and Georg Hartmann of Nuremberg (1542), as well as Persian astrolabes that incorporate both astronomical and astrological functions.

Curators continue to research and publish on these objects, revealing how astronomical knowledge traveled along trade routes and across religious boundaries. One notable piece is a 15th-century Catalan astrolabe that incorporates both Christian and Islamic iconography, a testament to the cross-cultural exchange of scientific ideas. The museum’s astrolabe database, part of the international “Astrolabe” project, documents each instrument with high-resolution images and detailed measurements, making this unparalleled collection accessible to scholars worldwide.

Optical Instruments: From Leeuwenhoek to Galileo

The development of optics is a core strength of the collection. Among the most treasured pieces is Galileo’s telescope, one of only two surviving instruments that he used to observe Jupiter’s moons in 1610. This simple tube, with its original lenses and brass fittings, is a powerful symbol of the moment when humanity realized Earth was not the center of the universe. Alongside it are early compound microscopes by Anthony van Leeuwenhoek, whose hand-ground lenses revealed a world of microorganisms invisible to the naked eye, and Robert Hooke’s microscopes, which allowed him to publish the groundbreaking Micrographia in 1665.

Later instruments by William Herschel, Joseph von Fraunhofer, and Oxford’s own Peter Dollond trace the evolution of lens-making from simple spheres to achromatic doublets and precision refractors. A particularly striking object is a 19th-century “transit circle” used at the Radcliffe Observatory, a massive instrument that measures stellar positions with arc-second accuracy. These objects not only demonstrate technical progress but also the shifting ways scientists have visualized the unseen—from Hooke’s detailed drawings of flea anatomy to Fraunhofer’s spectral lines that revealed the chemical composition of stars. The optical gallery is arranged chronologically, allowing visitors to see how each generation of instruments built upon the successes and limitations of its predecessors.

Chemistry’s Evolution: Apparatus from Alchemy to Lavoisier

The chemical collection includes equipment from the laboratories of Robert Boyle, Joseph Priestley, and Antoine Lavoisier—three figures who transformed alchemy into modern chemistry. Alchemical vessels, balances, furnaces, and distillation apparatus chart the transition from the search for the philosopher’s stone to the discovery of oxygen and the law of conservation of mass. A notable highlight is the apparatus used in Boyle’s air-pump experiments, which helped establish the concept of a vacuum and the relationship between pressure and volume. One of the museum’s most iconic objects is the original 1660 “machina Boyleana,” a glass receiver with a manually operated pump that allowed Boyle to demonstrate the effects of air removal on combustion, respiration, and animal life.

Priestley’s glassware for isolating gases, including his elaborate pneumatic trough, is preserved alongside John Dalton’s early chemical symbol set—a series of circles and lines that represent the first systematic notation for atoms and molecules. The collection also includes Lavoisier’s precision balances and mercury-based apparatus, which he used to prove that mass is conserved in chemical reactions, laying the foundation for stoichiometry. Each object is displayed with explanatory labels that connect the physical design of the instrument to the scientific insights it enabled. A recent addition is a replica of Humphrey Davy’s experimental setup for isolating sodium and potassium, which demonstrates the explosive reactions that literally illuminated the nature of elements.

Physics and the Instruments of Modern Science

Physics galleries display a wide range of electrical, magnetic, and mechanical devices that illustrate the birth of modern physical science. Early electroscopes, Leyden jars, and induction coils document the pioneering work of Charles Wheatstone, George Gabriel Stokes, and Michael Faraday. One of the most fascinating exhibits is a set of original apparatus used by William Gilbert in his 1600 publication De Magnete, which first recognized the Earth as a giant magnet. The gallery also features a collection of astronomical clocks and orreries, including a unique “planetarium clock” built by Christopher Pinchbeck in 1727, which mechanically models the motions of the known planets.

One of the most iconic exhibits in the entire museum is the blackboard used by Albert Einstein during his 1931 Rhodes Memorial Lectures at Oxford. The blackboard, still bearing his equations for the unified field theory, was physically carried from the lecture hall to the museum immediately afterward, and it remains one of the most photographed objects in the collection. This artifact bridges the gap between abstract theory and physical practice, reminding visitors that even the most revolutionary ideas were once sketched with chalk in front of a live audience. The gallery also includes a demonstration double pendulum and a working Faraday disk generator, allowing visitors to see classical physics in action.

Conservation: Protecting Fragile Heritage for Future Generations

Preserving delicate scientific instruments requires specialized expertise. The museum’s conservation team uses both traditional methods and modern analytical techniques to stabilize and restore objects, ensuring that they remain accessible for study and display. Metals, glass, wood, ivory, and early plastics each demand distinct approaches, and the team continuously refines its protocols through research and collaboration.

Specialized Techniques for Diverse Materials

Brass astrolabes, for example, are cleaned with mild solvents and micro-tools to avoid damaging engraved surfaces. The conservators must carefully remove corrosion products while preserving the original patina that provides historical evidence of use and age. Early microscopes with delicate ivory or horn parts are stored in carefully controlled humidity environments (typically 50-55% relative humidity) to prevent cracking or warping. Glass apparatus may require consolidation of flaking enamel labels or repair of cracks using reversible adhesives such as Paraloid B-72. The conservation lab documents each treatment in detail, contributing to a growing body of knowledge about best practices for historic scientific instruments. One recent project involved the restoration of a 19th-century “differential thermometer” made by John Benjamin Dancer, which required delicate micro-welding to repair a broken platinum wire.

Preventive Conservation and Environmental Control

Beyond active treatment, the museum prioritizes preventive conservation. Light levels are monitored with spectroradiometers to minimize fading of pigments and dyes, particularly on vellum and paper instruments. Temperature and relative humidity are kept stable (typically 20-22°C and 50-55% RH) to slow chemical degradation of metals and organic materials. Regular condition surveys catch emerging issues such as corrosion, insect damage, or adhesive failure before they become serious. The museum collaborates with University of Oxford research departments, including the Department of Materials and the Research Laboratory for Archaeology and the History of Art, to develop new protocols—especially for challenging materials like synthetic polymers found in 20th-century instruments (e.g., early Bakelite radios and Perspex lenses). These efforts ensure that even the most fragile artifacts remain accessible for study and display in the decades ahead.

Curated Exhibitions: Making Science History Accessible

Exhibitions at the museum are designed to highlight pivotal moments in scientific history while making complex ideas understandable to diverse audiences. The curatorial team uses object-rich displays, multimedia presentations, and thoughtful interpretive design to bring the stories behind the instruments to life.

Permanent Displays: The Story of Science

The permanent exhibition organizes objects by theme and chronology, from medieval Islamic science through the Scientific Revolution and Enlightenment to modern physics. Clear labels, illustrations, and interactive elements help visitors connect instruments to the discoveries they enabled. For instance, a display on early electricity might include a Leyden jar alongside a video recreating Benjamin Franklin’s kite experiment, using a close replica. The layout encourages visitors to see scientific progress not as a linear march but as a web of influences, failures, and breakthroughs. A particularly effective display shows how the same basic design of a mercury barometer evolved from Torricelli’s 1643 invention to the precision instruments used by meteorological stations in the 20th century, demonstrating both continuity and innovation. The gallery also features a “hands-on” area where visitors can experiment with replica objects, such as a working orrery or a model of Newton’s color wheel.

Temporary Exhibitions: Deep Dives into Specific Themes

Special exhibitions explore in-depth topics such as the history of computing, vaccines, or the role of women in science. A recent show titled The Thinking Machine traced the evolution of logic and calculation from Babbage’s Difference Engine to early electronic computers, bringing in loan objects from the Science Museum in London and the Computer History Museum in California. The exhibition included a working replica of the Difference Engine No. 2, which visitors could operate to compute polynomial equations, as well as original punch cards and vacuum tubes from the 1940s. Another memorable exhibition, Hidden Figures: Women in Science at Oxford, highlighted the contributions of Dorothy Hodgkin, Kathleen Lonsdale, and other female scientists whose work had been overlooked. These exhibits often include loans from other institutions, bringing fresh perspectives and objects rarely seen in Oxford. The curatorial team produces detailed catalogues and online resources that serve as lasting references for researchers and enthusiasts alike. Future exhibitions are planned on the history of climate science and the role of instruments in navigation.

Educational Outreach and Public Engagement

The museum believes scientific heritage belongs to everyone. Its education programs reach school groups, university students, and lifelong learners through a variety of hands-on experiences and digital resources.

School Programs and Curriculum Integration

The education department runs workshops for primary and secondary school groups that align with the UK National Curriculum. Topics such as “Changing Materials,” “Earth and Space,” and “Working Scientifically” are taught using real artifacts from the collection. Students might handle replica astrolabes and measure the altitude of a simulated star using the same techniques as medieval navigators, or they might replicate an 18th-century electrical machine to generate sparks and learn about static electricity. These activities build historical awareness alongside scientific skills, encouraging students to think critically about how scientific knowledge is produced and validated. Teacher-training sessions equip educators with object-based learning techniques that can be applied across subjects—from history to art to physics. The museum also offers a special program for visually impaired visitors, using tactile replicas of instruments and 3D-printed models to make the collection accessible through touch.

University Collaborations and Research Support

As part of Oxford University, the museum is a vital resource for research in the history of science, medicine, and technology. Internships, seminars, and collaborative projects connect students with curatorial staff. The museum’s specialists supervise doctoral theses and publish widely in peer-reviewed journals. The library holds rare books, manuscripts, and archives documenting instrument making and scientific practice, including the working papers of instrument makers such as George Adams and Jesse Ramsden. Short-term research fellowships are awarded each year to external scholars, enabling new insights into the collections. Recent fellowship projects have explored the role of optical instruments in colonial exploration, the conservation challenges of early plastics, and the digital reconstruction of a lost 18th-century orrery. These collaborations ensure that the museum remains at the forefront of scholarship in the history of science.

Public Lectures and Family Events

Each term the museum hosts public lectures by leading academics, curators, and contemporary scientists who reflect on the historical roots of their work. For example, a lecture series on “Science and Society” has examined how past epidemics shaped public health policy, drawing lessons for the COVID-19 pandemic. Family-friendly weekend workshops introduce children to topics like making a sundial, understanding the science of light with hands-on optics, or constructing simple electrical circuits based on Victorian designs. Evening “Lates” events with themed talks, demonstrations, and bar access attract adults who might not otherwise visit a history museum, mixing science history with social engagement. Participation in the Oxford Science Festival and British Science Week extends the museum’s reach into the broader community, with pop-up exhibits in public parks and shopping centers. The museum also runs a podcast series, “MHS: The Show,” which interviews curators and scientists about the stories behind key objects.

Global Impact: Research, Collaboration, and Digital Access

The museum’s influence extends far beyond its Oxford galleries. Through international partnerships and digital initiatives, it shares its collections and expertise with a global audience.

Fellowship Programs and Scholarly Output

Short-term research fellowships bring historians, conservators, and scientists from around the world to study the collections. Their work results in publications that advance knowledge of instrument making, scientific practice, and material culture. The museum also produces its own peer-reviewed catalogues and online databases, such as the Catalogue of Astrolabes and the Early Scientific Instruments in Oxford series, making detailed information and high-resolution images accessible to anyone with an internet connection. The museum’s conservation team regularly publishes case studies in journals such as the Journal of the American Institute for Conservation and presents at international conferences. The library’s special collections are cataloged in the Oxford Libraries Information System (OLIS), allowing scholars to discover rare books and manuscripts from anywhere in the world.

International Partnerships and Loans

The museum actively collaborates with institutions such as the British Museum, the Science Museum in London, the Smithsonian Institution, and the Museum Boerhaave in Leiden. Objects from Oxford have traveled to major exhibitions worldwide, including a landmark show on Islamic astronomy at the Museum of Islamic Art in Doha and a traveling exhibition on the history of microscopy that visited New York, Tokyo, and Berlin. Joint conservation projects and digital documentation initiatives, like the “Astrolabe” project that catalogued instruments from Cairo to Copenhagen, build a shared infrastructure for heritage preservation. The museum also participates in EU-funded research networks on sustainable conservation and digital storytelling, ensuring that its expertise helps shape global standards for museum practice.

Online Resources and Virtual Tours

The museum’s online collection database provides high-resolution images and detailed descriptions of thousands of objects, with new records added regularly. Virtual tours, created using 360-degree photography, allow remote visitors to explore the galleries from home, zooming in on individual objects and reading interpretive labels. Downloadable lesson plans, activity sheets, and educator guides support teachers who cannot visit in person. The museum’s YouTube channel features short videos on key objects, conservation processes, and curator talks, with subtitles in multiple languages. These digital tools ensure that the museum’s educational mission reaches far beyond its physical footprint, making it a valuable resource for teachers, students, and researchers worldwide, particularly in developing countries where access to scientific heritage may be limited.

Celebrating Scientific Heritage for a Global Community

In an era of rapid technological change, the Museum of the History of Science offers a space for reflection on the long arc of discovery. It reminds visitors that every modern device—from smartphones to MRI scanners—builds on centuries of invention and refinement. The objects on display are not mute relics; they are active witnesses to the creativity, persistence, and occasional serendipity of scientists and instrument makers. By connecting past and present, the museum inspires critical thinking about current scientific debates: climate modeling relies on instruments that trace their lineage to Pascal’s barometer, and the ethics of AI can be informed by debates about automation in the 19th century. The museum does not simply preserve history; it uses that history to illuminate the choices we face today.

Its role in celebrating scientific heritage extends to artists, writers, and designers who draw on the aesthetic beauty and technical ingenuity of old instruments. The museum’s collections have inspired novels (such as Kate Mosse’s Labyrinth), architectural projects (including a design for a temporary planetarium based on the astrolabe’s geometry), and even a line of jewelry featuring etched brass astronomical motifs. By safeguarding these artifacts and sharing them widely, the museum ensures that future generations can learn from the triumphs and failures of those who came before—and perhaps find inspiration for the discoveries yet to come.

  • Holds the world’s largest astrolabe collection and one of only two surviving Galileo telescopes.
  • Applies expert conservation techniques to metals, glass, wood, ivory, and early plastics.
  • Runs extensive educational programs for school groups, university students, and the general public.
  • Offers research fellowships and publishes scholarly catalogues and digital resources.
  • Engages diverse audiences with interactive displays, public lectures, family workshops, and a podcast.
  • Collaborates internationally on exhibitions, conservation, and digital heritage projects.
  • Provides virtual tours and a comprehensive online database for remote access.

For more information, visit the official museum website, explore the Wikipedia article, or browse the collections database. The museum’s education programme provides resources for teachers, and its collaboration with the Science History Institute supports broader heritage initiatives. Academic researchers can also explore the digital archives of the Oxford University History Faculty for related resources.