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In contrast, controllable renewable energy sources include dammed hydroelectricity, bioenergy, or geothermal power. Percentages of various types of sources in the top renewable energy-producing countries across each geographical region in 2023. Renewable energy systems have rapidly become more efficient and cheaper over the past 30 years. [3]
The hot comb was an invention developed in France as a way for women with coarse curly hair to achieve a fine straight look traditionally modeled by historical Egyptian women. [44] However, it was Annie Malone who first patented this tool, while her protégé and former worker, Madam C. J. Walker , widened the teeth.
In 1977, she was awarded the Austrian Cross of Honour for Science and Art. [304] 1977: The Association for Women Geoscientists was founded. [305] 1977: Argentine-Canadian scientist Veronica Dahl became the first graduate at Université d'Aix-Marseille II (and one of the first women in the world) to earn a PhD in artificial intelligence. [306]
The wind power, solar power and hydroelectric power industries provide good examples of this. Global renewable energy investment growth (1995-2007) [1] In 2020, the global renewable energy market was valued at $881.7 billion [2] and consumption grew 2.9 EJ. [3]
Renewable electricity generation by source and country in 2023 [1] This is a list of countries and dependencies by electricity generation from renewable sources. [1] Renewables accounted for 30% of electric generation in 2023. Renewables consist of hydro (47%), wind (26%), solar (18%), biomass (8%) and geothermal (1%).
Jóhanna Sigurðardóttir, Iceland (2009–2013): As prime minister, she was the world's first openly lesbian world leader, first female world leader to wed a same-sex partner while in office. Elizabeth II, United Kingdom (1952–2022): In 2015, she became the longest-reigning queen regnant and female head of state in world history.
Size comparison of modern wind turbines Wind energy generation by region. As the 21st century began, fossil fuel was still relatively cheap, but rising concerns over energy security, global warming, and eventual fossil fuel depletion led to an expansion of interest in all available forms of renewable energy. The fledgling commercial wind power ...
In 1802 lectures to the Royal Society, Thomas Young was the first to use the term energy to refer to kinetic energy in its modern sense, instead of vis viva. [3] In the 1807 publication of those lectures, he wrote, The product of the mass of a body into the square of its velocity may properly be termed its energy. [4]