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Há 5 horas · Fracking (also known as hydraulic fracturing, fracing, hydrofracturing, or hydrofracking) is a well stimulation technique involving the fracturing of formations in bedrock by a pressurized liquid. The process involves the high-pressure injection of "fracking fluid" (primarily water, containing sand or other proppants suspended with the aid of ...
Há 1 dia · t. e. In physical cosmology, cosmic inflation, cosmological inflation, or just inflation, is a theory of exponential expansion of space in the very early universe. Following the inflationary period, the universe continued to expand, but at a slower rate. The re-acceleration of this slowing expansion due to dark energy began after the universe ...
Há 1 dia · A Petrobras vai renomear o Polo Gaslub como Complexo de Energias Boaventura e vai inaugurar a unidade amanhã, 13, com visita do presidente Lula.O lançamento dá conta da partida da primeira de ...
Há 5 horas · Such industry might include the production of silicon, aluminum, [61] steel, or natural gas, and hydrogen, and using future long-term storage to facilitate 100% energy from variable renewable energy. [ 62 ] [ 63 ] [ better source needed ] Homes and businesses can also be programmed to vary electricity demand , [ 64 ] [ 65 ] for example by remotely turning up water heater thermostats.
Há 1 dia · The G20 or Group of 20 is an intergovernmental forum comprising 19 sovereign countries, the European Union (EU), and the African Union (AU). [2][3] It works to address major issues related to the global economy, such as international financial stability, climate change mitigation and sustainable development.
Há 5 horas · Order of the White Lion (1937) Signature. Nikola Tesla (/ ˈtɛslə /; [2] Serbian Cyrillic: Никола Тесла, [nǐkola têsla]; 10 July 1856 [a] – 7 January 1943) was a Serbian-American [3][4] engineer, futurist, and inventor. He is known for his contributions to the design of the modern alternating current (AC) electricity supply system.
Há 1 dia · Africa. Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km 2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth 's land area and 6% of its total surface area. [7] With nearly 1.4 billion people as of 2021, it accounts for about 18% of the world's human population.
