P1_3 The Double Pendulum and Lunar Seismometry

This paper aims to show that through the properties of the Laplace transformation into ‘s’ space, the coupled differential equations of the double pendulum, as shown in figure 1 [1] can be solved with relative ease and show interesting properties and applications of the system for variable values of gravity. These include lunar seismometry and consideration of similar experiments on other astronomical bodies

P1_2 The Temperature of Jupiter

It is well known that there is a discrepancy between Jupiter’s observed surface temperature, quantified through infrared emissions, and the theorised temperature based on the approximation that Jupiter acts as a black body. This paper will attempt to assess the additional contribution of three popular factors to the excess heat output of Jupiter; gravitational collapse, heat emission from radio-isotopes and the differentiation of He and

P1_1 "Prepare for Titanfall"

In the popular digital entertainment title Titanfall, “titans”, or large metal exoskeletons are dropped onto the battlefield on Earth, from a region in low earth orbit (LEO) at approximately 160 km. From start to finish, this process takes approximately 10 seconds in-game, subsequently requiring an average velocity of around 1.6x104 ms-1. This paper aims to incorporate the often neglected aspect of quadratic drag into the dynamical calculations in order to show that the time required for this movement is closer to 223.2 seconds once the correct atmospheric impacts have been accounted for

Combined visible and near-infrared OPA for wavelength scaling experiments in strong-field physics

We report the operation of an optical parametric amplifier (OPA) capable of producing gigawatt peak-power laser pulses with tunable wavelength in either the visible or near-infrared spectrum. The OPA has two distinct operation modes (i) generation of >350 uJ, sub 100 fs pulses, tunable between 1250 - 1550 nm; (ii) generation of >190 uJ, sub 150 fs pulses tunable between 490 - 530 nm. We have recorded high-order harmonic spectra over a wide range of driving wavelengths. This flexible source of femtosecond pulses presents a useful tool for exploring the wavelength-dependence of strong-field phenomena, in both the multi-photon and tunnel ionization regimes.Comment: 14 pages, 9 figures, This paper was published in Proceedings of SPIE 10088, Nonlinear Frequency Generation and Conversion: Materials and Devices XVI, doi 10.1117/12.225077

Influence of feeding and rearing methods on the quality of young goat carcasses

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