400 search results for “dark matter” in the Public website
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Physicist Michel Orrit new member KNAW
The Royal Netherlands Academy of Arts and Sciences (KNAW) selects prominent researchers as members based on their scientific achievements. On September 17th, the KNAW will install 21 new members, including Leiden physicist Michel Orrit.
- About the programme
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Self-folding metamaterial
The more complex the object, the harder it is to fold up. Space satellites often need many small motors to fold up an instrument, and people have difficulty simply folding up a roadmap. Physicists from Leiden and Amsterdam have now designed a structure that folds itself up in several steps. Publication…
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Elastic Leidenfrost Effect enables soft engines
Water droplets float in a hot pan because of the so-called Leidenfrost effect. Now physicists have discovered a variation: the Elastic Leidenfrost effect. It explains why hydrogel balls jump around on a hot plate making high pitched sounds. Publication in Nature Physics on July 24.
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What do PAHs do in space?
Xander Tielens, Professor of Physics and Chemistry of the Interstellar Space, has been awarded an ERC Advanced Grant to study polycyclic aromatic hydrocarbons (PAHs) in space. The combination of astronomical observations, computer models and lab research makes the research highly interdisciplinary.
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Three Times Aart Strootman
In the next few days several compositions by Aart Strootman (guitarist, instrument builder, composer, teacher and ACPA PhD) will premiere at Festival Classique and Festival Gaudeamus.
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In pictures: the Night of Discoveries
Over 4,000 visitors came to the seventh edition of the Night of Discoveries, a festival of knowledge and culture, on Saturday 21 September. On this the last summer evening of the year, the festival-goers were treated to over 170 acts on the theme of light and dark, making it a vibrant, busy, educational…
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Youtube star Ed Copeland gives Colloquium Ehrenfestii
On Wednesday February 7th, Professor Ed Copeland from the University of Nottingham will give the Colloquium Ehrenfestii.
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Leiden astronomers find building blocks for life in the darkest spots of star-forming cloud
An international team led by Leiden astronomers has discovered diverse ices in the darkest, coldest regions of a molecular cloud. To do so, they used the James Webb Space Telescope. This discovery allows astronomers to examine the simple icy molecules that will be incorporated into future exoplanets,…
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Physical reality of string theory demonstrated
String theory has come under fire in recent years. Promises have been made that have not been lived up to. Leiden theoretical physicists have now for the first time used string theory to describe a physical phenomenon. Their discovery has been reported this week in 'Science'.
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Astrophotography for beginners
Last week was the opening of SNAP! The night sky through a Leidener’s lens. The exhibition, located in a library in the Stevenshof, shows how astrophotographers capture the universe from their backyards. Turns out, this does not have to be that difficult: your mobile phone camera will get you a long…
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Sustainable international trade
The relationship between States and foreign corporations are regulated by international economic law and international investment law in particular. Any disputes between States and foreign corporations must therefore also be solved by reference to this body of public international law, for example when…
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Human Trafficking
Human trafficking is a very topical social problem, which because of both its social and legal complexity, can only be studied in an interdisciplinary way. Combating human trafficking currently features high on national and international policy agendas.
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Cities in the Greek World
Whereas when we started the first Project the chief aim was pure research, to find out more about the past in a region, now we see that the countries of Europe are faced with the great problem that there are far too many archaeological sites for them to deal with by excavation, but yet some kind of…
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Centre for Art, Literature and Law (CALL)
The center studies the many ways in which issues of law and justice are dealt with in art and literature with a focus on liminal issues and cases. These are issues and cases where law comes to the limits of what it is capable of dealing with and art and literature explore the implications of what is…
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Deep imaging
A computer can look at, and learn from, many more images than a human specialist. AI systems are rapidly becoming indispensable for medical and biological applications. But they still have to learn how to explain their decisions.
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Data Science
The majority of scientists, from archaeologists through to zoologists, collect huge volumes of data. Their massive databases contain large amounts of information which is difficult for humans to filter. With a solid grounding in statistics, we can develop algorithms for analysing and identifying patterns…
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Our facilities
In support of the research and education, the Leiden Institute of Advanced Computer Science (LIACS) has a Research and Education laboratory at its disposal. Within this environment, we can offer machines that go beyond normal office automisation and production.
- About the programme
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English Language and Culture (BA)
From Great-Britain to the United States and from Australia to South Africa: people around the whole world speak and write English. In Leiden you will broaden your knowledge of the English language and the rich Literature and culture of the global English world on academic level.
- LSWK lecture: Black holes as quantum computers and the strange matter of high-temperature super conduction
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Michel Orrit and Hermen Overkleeft members KNAW
The Royal Netherlands Academy of Arts and Sciences (KNAW) selects prominent researchers as members based on their scientific achievements. On September 17th, the KNAW will install 21 new members, including Leiden physicist Michel Orrit and chemist Hermen Overkleeft.
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Major upgrade for undersea neutrino detector
Building the neutrino detector KM3NeT on the Mediterranean Sea floor has picked up pace. Five detection lines, each carrying eighteen detectors, have been sunk and installed, and the first measurement data are coming in, says neutrino physicist Dorothea Samtleben.
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Photosynthesis works with valves
Photosynthesis is the origin of life on earth, but it is a phenomenon that is still barely understood. Take, for example, the extremely efficient mechanism of electron transport. Leiden researchers demonstrate for the first time where one particular cause of this might be found.
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The work of abyss and time: towards an emancipatory poetics of the tropics and critical autoethnographic practices of research within media art
This doctoral project by artist and educator Luiz Zanotello engenders a postcolonial understanding of time, space and movement by means of artistic research methods. The project examines the contradictory effects of the abyssal line of thought within the tropics as a starting point.
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Male birds may sing, but females are faster at discriminating sounds
It may well be that only male zebra finches can sing, but the females are faster at learning to discriminate sounds. Leiden researchers publish their findings in the scientific journal Animal Behaviour.
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How do we maintain a healthy biological clock?
During Seeing Stars Leiden all the lights around Leiden Observatory will be switched off for an hour. The more lights that go out, the more stars we’ll be able to see. For the LUMC, this is the perfect moment to think about our biological clock, the topic researchers from the BioClock consortium are…
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First discovery of methanol in a warm planet-forming disk
An international team of researchers led by Alice Booth (Leiden University, the Netherlands) have discovered methanol in the warm part of a planet-forming disk. The methanol cannot have been produced there and must have originated in the cold gas clouds from which the star and the disk formed. Thus,…
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Astronomers map the cosmic spider web
An international team of astronomers from Leiden Observatory and others, has for the first time mapped a piece of the dark, cosmic web. The research strengthens the hypothesis that the young universe consisted of huge numbers of small groups of newly formed stars. The astronomers publish their findings…
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8th wall formula about the Van der Waals-equation for gases
Despite the rain and awful weather, the painting job has been finished within a week. The Van der Waals-state equation is the eighth Leiden wall formula.
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Alessandra Silvestri wins Vidi for understanding the universe
Alessandra Silvestri, a cosmologist at the Leiden Institute of Physics (LION), has been awarded an NWO Vidi grant for understanding the expanding universe. A growing number of theories explain why the expansion of the universe is accelerating, while more and more relevant observational data is pouring…
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Peter Rodrigues on ethnic profiling at Royal Netherlands Marechaussee
Victims of ethnic profiling have commenced legal proceedings against the Royal Netherlands Marechaussee. Peter Rodrigues, Professor of Immigration Law, says in a national newspaper that ethnicity may never be the most important criterion to stop and question a person and refers to a past ruling by the…
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Project LAWKI (Life As We Know It) by the collective ARK / Roosje Klap winner Gouden Kalf 2022
Project LAWKI (Life As We Know It) by PhDArts candidate Roosje Klap (ARK) won a Gouden Kalf Award 2022 for the Best Digital Cultural Production.
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Leiden astronomers in astronomy podcast
Five Leiden astronomers tell about science in the podcast Astronomy et al. This podcast was set up by Ricardo Garcia Soto in September 2016 and is focused on anyone who is interested in science.
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Online study
We bring science to your home! Join our online study called Biological Motion study!
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Hall of Fame 2016
Many of our staff and students have won prizes over the past year. Others have been awarded a subsidy, or, because of their eminence in their field, they have been appointed member of an academic society or have taken on a position in the community. Reasons enough to be proud of them and to include…
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Knowledge centre Anxiety & Stress in Youth
Our mission is to recognise and treat stress and anxiety in children as early as possible, by connecting scientific research, clinical practice and education.
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Biotransformation of plant metabolites in microorganisms
- How to deconvolute metabolic mixture of precursors and products by biontransformation? - How to optimize the reaction conditions to produce bioactive compounds in biotransformation? - What is the effect of co-treating fungi or bacteria for biotransformations?
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Sense Jan van der Molen Lab - Physics of Quantum Materials
In our lab, we investigate the physics and material properties of low-dimensional systems.
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Book recommendation from ... Meike de Goede
Every month a member of the Institute for History tells about a book that inspired him or her. Afterwards, the pen is passed on to another colleague. This month dr. Meike de Goede tells about the book 'Between Tides' by Valentin Mudimbe. The novel, little known beyond the circles of Africanists and…
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Changing Approaches Towards Restitution and Return of Colonial Heritage: Tracing Experiences and Identifying Shared Decolonial Practices
INTERDISCIPLINARY SYMPOSIUM
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Dr Andrew Sorensen wins Tübingen Prize for Older Prehistory and Quaternary Ecology
Andrew Sorensen received the award for his work on the origins of fire-making, especially for his dissertation
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Prospective science students in vast numbers to Master's Open Day
A screaming wind, a dark grey sky and unexpected rainfall. The visitors of the Master's Open Day of the Faculty of Science had a hard time, but nevertheless came en masse to the Gorlaeus Building: about 750 prospective students and supervisors.
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Book Africanist Stephen Ellis posthumously published
The African Studies Centre Leiden presented the last book by its renowned colleague Prof. Stephen Ellis (1953-2015), This Present Darkness: A history of Nigerian organised crime, on 9 June. The book was published posthumously. Former colleagues and friends paid tribute to Ellis, who was regarded as…
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Quantum Leiden creates potential for a great quantum future
Friday afternoon, 1 October. Location: one of the most vibration-free places in the world. In this setting, Leiden top scientists launched Quantum Leiden. For decades, researchers at the Faculty of Science have been investigating quantum technology at the highest level and also have been brainstorming…
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Complex Organic Molecules Discovered in Infant Star System
For the first time, astronomers have detected the presence of complex organic molecules, the building blocks of life, in a protoplanetary disc surrounding a young star. The discovery reaffirms that the conditions that spawned the Earth and Sun are not unique in the Universe. The results are published…
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Pitfalls of discretionary conduct
Judicial officers have some leeway in how they act. In most cases that's fine, but it can also lead to abuses, such as ethnic profiling. It is easy to forget that these are not isolated decisions, but are also part of a framework of formal policies. Professor Maartje van der Woude calls for more comprehensive…
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‘All of Leiden will join in with the Seeing Stars experiment’
What will happen if the lights in a large part of the city are switched off? How many stars can you see without all that light pollution? This is what researchers, artists and the residents of Leiden are going to investigate during Seeing Stars Leiden on 25 September. ‘Leiden is the ideal place for…
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Lights out, stars on: Daan Roosegaarde on Seeing Stars Leiden
‘What if we switch off all the lights one evening? That idea crossed my mind from time to time. And when I mentioned it to a taxi driver one day, he said: “Oh, you mean: lights out, stars on!” That’s not completely true, of course, because the stars are always on, but his phrase summed up the idea n…
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Astronomer Danna Qasim wins two prizes for dissertation on methane ice
Former Leiden Observatory PhD candidate Danna Qasim has won no less than two prestigious prizes with her thesis, titled 'Dark ice chemistry in interstellar clouds'. Qasim received the IAU PhD Prize from the IAU. The Astrochemistry Subdivision of the American Chemical Society (ACS) honoured her work…