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Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a lightweight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln. The heating process causes gases trapped in the clay to expand, forming thousands of small bubbles and giving the material a porous structure.
Leca of Cătun (before 1599–1616), Wallachian political figure; Béatrice Leca (born 1970), French writer; Daniel Leca (born 1985), French politician; Francine Leca (1938-2024), French surgeon and professor; Grégory Leca (born 1980), French footballer; Haralamb Lecca (or Leca), (1873–1920), Romanian poet and playwright
Leica Camera AG (/ ˈ l aɪ k ə /) is a German company that manufactures cameras, optical lenses, photographic lenses, binoculars, and rifle scopes.The company was founded by Ernst Leitz in 1869 (Ernst Leitz Wetzlar), in Wetzlar, Germany.
After the LECA, some 2 billion years ago, the eukaryotes diversified into a crown group, which gave rise to animals, plants, fungi, and protists. Eukaryogenesis , the process which created the eukaryotic cell and lineage, is a milestone in the evolution of life, since eukaryotes include all complex cells and almost all multicellular organisms.
M9 – 2009 – The first full frame digital camera in the series, introduced on September 9, 2009. [1]M9-P – 2011 – The full frame digital camera with a classic look, introduced in June/July 2011.
Francine Leca (20 May 1938 – 15 June 2024) was a French cardiac surgeon and professor of medicine specialising in heart surgery, a pioneer of the discipline in pediatrics. Biography [ edit ]
Leça Futebol Clube, better known as Leça FC or simply Leça, is a Portuguese football club located in the town of Leça da Palmeira, Matosinhos.Founded in 1912, it had a spell in the top-flight Primeira Liga in 1941–42 and between 1995 and 1998, when it was relegated for financial irregularities.
Ernst Leitz GmbH, later divided into: . Leica Biosystems GmbH, a cancer diagnostics company; Leica Camera AG, a German camera and optics manufacturer; Leica Geosystems AG, a Swiss manufacturer of surveying and geomatics equipment