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1 giorno fa · Through most of the Sun's life, energy has been produced by nuclear fusion in the core region through the proton–proton chain; this process converts hydrogen into helium. Currently, only 0.8% of the energy generated in the Sun comes from another sequence of fusion reactions called the CNO cycle , though this proportion is expected to increase as the Sun becomes older and more luminous.
1 giorno fa · Nickel is a silvery-white metal with a slight golden tinge that takes a high polish. It is one of only four elements that are ferromagnetic at or near room temperature; the others are iron, cobalt and gadolinium. Its Curie temperature is 355 °C (671 °F), meaning that bulk nickel is non-magnetic above this temperature.
1 giorno fa · Nuclear fusion works by forcing together two atoms—most often hydrogen—to make a heavier one—like helium（氦） . This explosive process releases massive amounts of energy, the Department of Energy explains. Fusion is the opposite of fission（裂变）, the reaction that powers nuclear reactors used commercially today.
1 giorno fa · Nuclear fusion reactor, hotter than the sun, may provide unlimited clean energy. Samirsinh Dattopadhye. 0:59. UAE has announced the successful operation of the first peaceful nuclear energy reactor in the Arab world, at Barakah Nuclear Energy Stations in Abu Dhabi. Khaleej Times.
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1 giorno fa · 这里采用的①，并将这个含义扩大化了——一般性的化身。. 本帖是运用《崩坏·星穹铁道》学习英文单词的尝试。. 这期是整个系列的第002期，涉及的是列车智库星神条目中的“「毁灭」，纳努克”篇，本人尝试记录一些单词及其意思。. 原文刊载于Purasbar崩坏星 ...
1 giorno fa · t. e. The Bronze Age is a historical period lasting from approximately 3300 to 1200 BC. It is characterized by the use of bronze, the use of writing in some areas, and other features of early urban civilization. The Bronze Age is the middle principal period of the three-age system, between the Stone and Iron Ages. [1]
1 giorno fa · Ecofascism is a term used to describe individuals and groups which combine environmentalism with fascism. [1] Philosopher André Gorz characterized eco-fascism as hypothetical forms of totalitarianism based on an ecological orientation of politics. [2] Similar definitions have been used by others in older academic literature in accusations of ...
