…the chemical element of atomic number 14, a non-metal with semiconducting properties, used in making electronic circuits. Pure silicon exists in a shiny dark grey crystalline form and as an amorphous powder…
…Samuel Irving, Sr. (1895–1979), US publisher; born Solomon Neuhaus. He founded Advance Publications, now the largest privately held media company, the holdings of which are controlled by his sons, Si (1927-; full name Samuel Irving Newhouse, Jr.) and Donald E. (1930-)…
…(in country dancing) a figure in which two dancers pass round each other back to back and return to their original positions…
…a system of physical units (SI units) based on the metre, kilogram, second, ampere, kelvin, candela, and mole, together with a set of prefixes to indicate multiplication or division by a power of ten…
…(in country dancing) a figure in which two dancers pass round each other back to back and return to their original positions…
…a system of physical units (SI units) based on the metre, kilogram, second, ampere, kelvin, candela, and mole, together with a set of prefixes to indicate multiplication or division by a power of ten…
