24 research outputs found
Binary and Millisecond Pulsars at the New Millennium
We review the properties and applications of binary and millisecond pulsars.
Our knowledge of these exciting objects has greatly increased in recent years,
mainly due to successful surveys which have brought the known pulsar population
to over 1300. There are now 56 binary and millisecond pulsars in the Galactic
disk and a further 47 in globular clusters. This review is concerned primarily
with the results and spin-offs from these surveys which are of particular
interest to the relativity community.Comment: 59 pages, 26 figures, 5 tables. Accepted for publication in Living
Reviews in Relativity (http://www.livingreviews.org
Investigating off-Hugoniot states using multi-layer ring-up targets
Laser compression has long been used as a method to study solids at high pressure. This is commonly achieved by sandwiching a sample between two diamond anvils and using a ramped laser pulse to slowly compress the sample, while keeping it cool enough to stay below the melt curve. We demonstrate a different approach, using a multilayer ‘ring up’ target whereby laser-ablation pressure compresses Pb up to 150 GPa while keeping it solid, over two times as high in pressure than where it would shock melt on the Hugoniot. We find that the efficiency of this approach compares favourably with the commonly used diamond sandwich technique and could be important for new facilities located at XFELs and synchrotrons which often have higher repetition rate, lower energy lasers which limits the achievable pressures that can be reached
Development of a method for detection of latent European fruit tree canker (Neonectria ditissima) infections in apple and pear nurseries
The effect of fungicide sprays on the incidence of apple canker (Nectria galligena) in Bramley's Seedling
Why the life of heaven is supremely worth living
In this paper shall develop widely held intuitions about
what makes a life a good life to live, and so what would make a life
the best sort of life to live forever; and I shall then argue that the kind
of after-life to be enjoyed by the Blessed as described in patristic
thought, is just that sort of life.
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