1 day ago · Energy development is the field of activities focused on obtaining sources of energy from natural resources. These activities include production of conventional, alternative and renewable sources of energy, and for the recovery and reuse of energy that would otherwise be wasted. Energy conservation and efficiency measures reduce the demand for ...
9 hours ago · In this work, a novel spring suspension strut with quasi-zero-stiffness (QZS) and zero-stiffness (ZS) properties is proposed to improve the performance of the multi-directional micro-vibration isolator. The QZS and ZS properties are achieved by developing a hexagon structure with negative stiffness mechanism to counteract the positive stiffness of a vertical suspension spring. The strut also ...
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1 day ago · Botswana is planning to use science and technology to diversify its economy and thereby reduce its dependence on diamond mining. To this end, the government has set up six hubs since 2008, in the agriculture, diamonds, innovation, transport, health and education sectors.
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Nov 27, 2021 · Reward Information 2021: Better of Blu-ray, 4K UHD and DVD films 2021-11-27 00:28:56 Right here’s a collection of high reward concepts for the DVD, Blu-ray and 4K UHD-loving, cinema connoisseurs within the household. Center-Earth: The Final Collector’s Version (Warner Bros. House Leisure, 2,290 minutes, Rated: PG-13 and R, 2.39:1 facet ratio, $249.99) — Filmmaker Peter […]
Nov 26, 2021 · The Met Office and the National Oceanic and Atmospheric Administration (NOAA) both recorded a strong coronal mass ejection (CME) from the Sun that the agencies predict will “graze” the Earth. Dr Tamitha Skov, a space weather physicist, warned that this could cause amateur radio blackouts as well as GPS issues. She wrote on Twitter: “Our […]