479 research outputs found

    I Wonder Who : Has Taken My Place With You

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    https://digitalcommons.library.umaine.edu/mmb-vp/3903/thumbnail.jp

    P1_6 Moon Shoes on the Moon

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    Moon shoes are a children's toy described as 'mini trampolines for your feet'. By assuming that the rubber bands in these shoes obey Hooke's law, we have investigated how these shoes would work when used on the moon and compared this to how they work on Earth. We found that if the bands were stretched by just 0.04m, an astronaut on the moon could bounce up to 14.7

    P1_5 I Would Walk 500 More

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    In the paper 'P1 3 I Would Walk 500 Miles' [1] the reduction in body mass of the average Scottish male, or 'Proclaimer', was considered as a relation to distance walked. It was further proposed that a model could be formed in which the Proclaimers' energy is drawn from some carried mass of food, rather than its own body fat. In this paper we consider the relation between body mass and the necessary carried mass of food for a Proclaimer to walk, with negligible mass reduction, over fixed distances. It was found that the mass a Proclaimer must carry is directly proportional to the Proclaimers' body mass. It was also found that the initial carried mass increases exponentially over journey length. It is therefore not feasible for the Proclaimer to carry its own food over the full 1000 miles

    P1_2 Freezing the Oceans

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    We modelled the Earth's oceans as a series of concentric shells of water. By nding the freezingtemperature of saline water at each depth, we found the energy change required to reduce the tem-perature of each shell to freezing point. By including the energy change needed to cause a changein state, we found that the total energy change required to freeze the oceans is approximately7.0 X10^23kJ

    If I Only Had You Back Again

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    No cover arthttps://scholarsjunction.msstate.edu/cht-sheet-music/9333/thumbnail.jp

    Dark Energy and Modified Gravity

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    Despite two decades of tremendous experimental and theoretical progress, the riddle of the accelerated expansion of the Universe remains to be solved. On the experimental side, our understanding of the possibilities and limitations of the major dark energy probes has evolved; here we summarize the major probes and their crucial challenges. On the theoretical side, the taxonomy of explanations for the accelerated expansion rate is better understood, providing clear guidance to the relevant observables. We argue that: i) improving statistical precision and systematic control by taking more data, supporting research efforts to address crucial challenges for each probe, using complementary methods, and relying on cross-correlations is well motivated; ii) blinding of analyses is difficult but ever more important; iii) studies of dark energy and modified gravity are related; and iv) it is crucial that R&D for a vibrant dark energy program in the 2030s be started now by supporting studies and technical R&D that will allow embryonic proposals to mature. Understanding dark energy, arguably the biggest unsolved mystery in both fundamental particle physics and cosmology, will remain one of the focal points of cosmology in the forthcoming decade.Comment: 5 pages + references; science white paper submitted to the Astro2020 decadal surve

    Women in a Male Jail

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