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Há 1 dia · Manganese is a chemical element; it has symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese was first isolated in the 1770s. Manganese is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels.
Há 1 dia · Wed 5 Jun 2024, 12:15. Rony's Tuesday's Fun Race Extra Large. Single Event. Europe. Normal. S1. Tue 11 Jun 2024, 10:00. Sport Racing Team Finland. Mixed Classes League.
Há 1 dia · Technology portal. v. t. e. A carbon nanotube ( CNT) is a tube made of carbon with a diameter in the nanometre range ( nanoscale ). They are one of the allotropes of carbon . Single-walled carbon nanotubes ( SWCNTs) have diameters around 0.5–2.0 nanometres, about 100,000 times smaller than the width of a human hair.
