Science / Biology / Filaments: Slender, thread-like stalks that make up the stamens of a fiower; topped by the anthers.


Science / Biology / Microfilaments: Rods composed of actin that are found in the cytoskeleton and are involved in cell division and movement. MORE

Ruthenium (Ru)

Science / Periodic Table of Elements / Ruthenium (Ru): Atomic number: 44, Atomic mass: 101.1 g.mol -1, Electronegativity: 2.2, Density: 12.2 at 20°C, Melting point: 2250 °C, Boiling point: 4150 °C, Vanderwaals radius: 0.135 nm, Isotopes: 11, Ele MORE


Science / Biology / Actin: The protein from which microfilaments are composed; forms the contractile filaments of sarcomeres in muscle cells. MORE

Rhenium (Re)

Science / Periodic Table of Elements / Rhenium (Re): Atomic number: 75, Atomic mass: 186.23 g.mol -1, Electronegativity: 1.9, Density: 20.5 at 20°C, Melting point: 3170 °C, Boiling point: 5627 °C, Vanderwaals radius: 0.138 nm, Ionic radius: un MORE

Boron (B)

Science / Periodic Table of Elements / Boron (B): Atomic number: 5, Atomic mass: 10.81 g.mol -1, Electronegativity: 2.0, Density: 2.3 at 20°C, Melting point: 2076 °C, Boiling point: 3927 °C, Vanderwaals radius: 0.098 nm, Ionic radius: 0.027 MORE


Business / Real Estate / Friable: The breaking down of a substance into tiny filaments and particles. Asbestos is harmful only if it is disturbed or exposed, as often occurs during renovation or remodeling. Asbestos is highly friable. MORE