Tag Archives: Time

Plants can tell time even without a brain – here’s how

Mark Greenwood is a PhD researcher in cellular biology at Sainsbury Laboratory, University of Cambridge. He is interested in how cells work together to create useful systems. In his PhD in James Locke’s group, he is using a mixture of experiments and theory to understand how cells interact to keep track of the time of day. They found that the circadian clock in individual cells of Arabidopsis thaliana can use local cell-to-cell signalling to agree on the time. He now hopes to further this work towards an understanding that may inform growth strategies in the field.

James Locke is Research Group Leader in Systems Biology, University of Cambridge. During his PhD James used an iterative process of experiment and theory to propose a new feedback loop in the plant circadian (24-hour) clock. For this work he was awarded the Promega Young Geneticist of the Year award (2007). Since 2012 he has been a group leader at the Sainsbury laboratory investigating gene expression dynamics in microbial and plant systems. He was awarded the Merrimack-CSB2 Prize in Systems Biology in 2013.

South Africa’s Blombos cave is home to the earliest drawing by a human

Christopher Henshilwood holds a 10 year South Africa National Research Foundation funded Research Chair and Professorship at the University of the Witwatersrand, South Africa. He is also the Professor of African Prehistory in the Archaeology, History, Culture and Religion Institute at the University of Bergen, Norway.

Karen Loise van Niekerk is an archaeologist working on Middle Stone Age sites, specifically Blombos Cave and Klipdrift Shelter, in the southern Cape, South Africa.

Trace Narratives over Vast Stretches of Time

Margaret Inga Urías is a multidisciplinary artist primarily using the medium of drawing to create engraved sculptures, site-specific installations, large-scale murals, constructed photographs and works on paper. Drawn to lost histories, concealed origins and imperceptible, forgotten connections, she is interested in conditions that entangle the past, the present, and the future–re-examining how we orient ourselves, not only in the immediacy of places around us, but also in the universe that maintains us. With a specific interest in the physical laws and circumstances that brought space, time, matter and beings into existence, she creates works that often function as trace narratives– following the story of the small, the coincidental, and the invisible, over vast stretches of time.

What is time – and why does it move forward?

“Einstein’s special theory of relativity, shows that time is … relative: the faster you move relative to me, the slower time will pass for you relative to my perception of time. So in our universe of expanding galaxies, spinning stars and swirling planets, experiences of time vary: everything’s past, present and future is relative.

So is there a universal time that we could all agree on?”

Thomas Kitching is a cosmologist, Reader in astrophysics, and Royal Society University Research Fellow working at the Mullard Space Science Laboratory at UCL. His interests are in dark energy, dark matter, statistics, and computer science. He is a manager in one of the worlds largest cosmology experiments, a European Space Agency mission called Euclid.

Deep time’s uncanny future is full of ghostly human traces

“Deep time represents a certain displacement of the human and the divine from the story of creation. Yet in the Anthropocene, ironically we humans have become that sublime force, the agents of a fearful something that is greater than ourselves.”

David Farrier is a senior lecturer in English literature at the University of Edinburgh, where his research interests include eco-criticism, postcolonial studies, and asylum and refugee contexts. He is currently working on a book about deep time in contemporary poetry

You thought quantum mechanics was weird: check out entangled time

“Up to today, most experiments have tested entanglement over spatial gaps. The assumption is that the ‘nonlocal’ part of quantum nonlocality refers to the entanglement of properties across space. But what if entanglement also occurs across time? Is there such a thing as temporal nonlocality?”

Elise Crull is assistant professor in history and philosophy of science at the City College of New York. She is the author, together with Guido Bacciagaluppi, of the book The ‘Einstein Paradox’: Debates on Nonlocality and Incompleteness in 1935 (forthcoming).