Quest Volume 13 Number 1 2017

Academy of Science of South Africa (2017)

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COVER STORIES 6 TIME MACHINE IN MY POCKET Hannah Worters shares the excitement of installing a new telescope 10 DEGRADING PROTEINS – CELL MAINTENANCE Ben Loos looks at the amazing process of autophagy 18 AFRICAN SKIES Sivuyile Manxoyi reflects on the indigenous astronomy of southern African peoples 22 CONTAINING EXPLOSIONS Genevieve Langdon shows how materials science is used to contain explosions FEATURES 12 Tour de Science Quest goes on a science tour 14 Science in tomorrow’s classroom Carlo Laj, Friedrich Barnikel, Wendy Taylor and Daksha Naran outline 15 years of geosciences workshops for teachers 31 Reduce, reuse, recycle Science Spaza worksheet 39 Water for life Science Spaza worksheet NEWS 26 A lure at both ends – puff adders leave nothing to chance 28 Deep secrets revealed: research expedition sheds light on deep-sea ecosystems 30 Cellphone-based maths competition subtracts Mxit, adds Android 32 Wits researchers find techniques to improve carbon superlattices for quantum electronic device applications 34 Who made the art? Researchers find way to identify the sex of the artists who created ancient rock art 37 Free online course – Extinctions: Past and Present

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