Experimental analysis of the breakage of a liquid bridge under microgravity conditions.

The experimental results obtained of the experiment \STACO" made on board the Spacelab D-2 Mission are analyzed. The conguration consisted of a liquid bridge between two solid supporting disks. An expected breakage occurred during the experiment. The recorded images are analyzed and the measured behaviour compared with the results of three dimensional model

Experimental analysis of the vibration of a liquid bridge under microgravity conditions.

The experimental results obtained of the experiment \LICOR" made on board the Spacelab D-2 Mission are analyzed. The conguration consisted of a liquid bridge where one of the supporting disks was vibrated. The recorded images are analyzed and the measured behaviour compared with the results of one dimensional models. The results of two pressure sensors located in each of the supporting disks are also analyzed

Inferring Mechanisms for Global Constitutional Progress

Constitutions help define domestic political orders, but are known to be influenced by two international mechanisms: one that reflects global temporal trends in legal development, and another that reflects international network dynamics such as shared colonial history. We introduce the provision space; the growing set of all legal provisions existing in the world's constitutions over time. Through this we uncover a third mechanism influencing constitutional change: hierarchical dependencies between legal provisions, under which the adoption of essential, fundamental provisions precedes more advanced provisions. This third mechanism appears to play an especially important role in the emergence of new political rights, and may therefore provide a useful roadmap for advocates of those rights. We further characterise each legal provision in terms of the strength of these mechanisms

Response of a liquid bridge to an acceleration varying sinusoidally with time

The response of a long cylindrical liquid column subjected to an axial microgravity field has been experimentally studied on a TEXUS sounding rocket flight to check with theoretical predictions. The expected response of the liquid bridge was a quasi-static amphora-type deformation of the cylindrical shape. However, the experimental results showed a more complex behaviour. Nevertheless it has been possible to find out the reasons of this discrepancy except for a mysterious 0.5% uncertainty in the stimuli