REFLECTING GALVANOMETER
\ɹɪflˈɛktɪŋ ɡˌalvɐnˈɒmɪtə], \ɹɪflˈɛktɪŋ ɡˌalvɐnˈɒmɪtə], \ɹ_ɪ_f_l_ˈɛ_k_t_ɪ_ŋ ɡ_ˌa_l_v_ɐ_n_ˈɒ_m_ɪ_t_ə]\
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Of Sir William Thomson, a galvanometer in which several short magnetic needles are fastened to a silvered glass mirror, suspended by a silk thread in the midst of a coil of wire. A current passing through the wire causes deflection of the needles and hence of the mirror which casts a luminous reflection on a graduated arc. This form of galvanometer gives a very delicate measure of the strength of the current.
By Smith Ely Jelliffe
Word of the day
Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.