Bubble trajectories in the presence of a decaying Lamb–Oseen vortex are calculated using modified Maxey–Riley equation. Some bubbles shown to get trapped within quasi-equilibrium states. All exit at time that is only function Galilei number and Reynolds number. The set initial bubble locations lead entrapment numerically determined show capturing potential single vortex. results provide insight...

Abstract How Galileo Galilei discovered the law of fall, and difference that this makes Galileo’s fall is one crucial building blocks classical mechanics. The question how was has often been a topic debate. This article offers reconstruction developments within research led to discovery law. offered make philosophical point regarding epistemic status experimental results: experiments can offer ...

Quite recently, Carter and Khalatnikov [CK] have pointed out that a geometric fourdimensional formulation of the non relativistic Landau theory of perfect superfluid dynamics should involve not only Galilei covariance but also, more significantly as far as gravitational effects are concerned, covariance under a larger symmetry group which they call the Milne group after Milne’s pioneering work ...

Marco Formentin, Alberto Lovison, Amos Maritan, and Giovanni Zanzotto Dipartimento di Fisica G. Galilei and CNISM, Università di Padova, via Marzolo 8, I-35151 Padova (Italy) ([email protected]) Dipartimento di Matematica, Università di Padova, via Trieste 63, I-35121 Padova (Italy) ([email protected]) Dipartimento di Psicologia Generale, Università di Padova, via Venezia 12, I-35131 Padov...

1 INAF, Osservatorio Astronomico di Padova, Padua, Italy, 2 Instituto de Astronomía, Universidad Nacional Autonoma de Mexico, Mexico City, Mexico, 3 Instituto de Astrofísica de Andalucía (CSIC), Granada, Spain, 4 Dipartimento di Fisica e Astronomia “Galileo Galilei”, Università di Padova, Padova, Italy, 5 Belgrade Astronomical Observatory, Belgrade, Serbia, 6 INAF, Osservatorio di Astrofisica e...

This article surveys some of the highlights in the development of string theory through the first superstring revolution in 1984. The emphasis is on topics in which the author was involved. Based on a lecture presented on June 20, 2007 at the Galileo Galilei Institute

Since tubes are widely used for different industrial applications, processing of tubes by the Severe Plastic Deformation (SPD) method has been the target of different attempts. Among these attempts, development of SPD processes for tubes based on Equal Channel Angular Pressing (ECAP) has been more successful. As an illustration, Tube Channel Pressing (TCP) has been presented as an attractive SP...

Since tubes have numerous industrial applications, different attempts are focused on the severe plastic deformation processes of tubes. As an illustration, tube channel pressing (TCP) is an attractive process for this purpose since it can be used for processing of different sizes of tubes. However, more attempts are needed to improve the outcomes of TCP. For example, imposing of a greater strai...