VOA-Sparrow Clinic The VOA-Sparrow Clinic is a collaboration between Volunteers of America and Sparrow Hospital, providing both physical and mental health care to the homeless in the Lansing area. Their location is 430 N Larch in Lansing.
Answers. Best Answer: Proposed to be an element by Carl Wilhelm Scheele in 1774, manganese was discovered by Johan Gottlieb Gahn, a Swedish chemist, by heating the mineral pyrolusite (MnO2) in the presence of charcoal later that year.
History of nucleic acids. 1  Nuclein were discovered by Friedrich Miescher in 1869. 2  In 1889 Richard Altmann discovered that nuclein has acidic properties, and it became called nucleic acid. 3  In 1938 Astbury and Bell published the first X-ray diffraction pattern of DNA. 4  In 1953 Watson and Crick determined the structure of DNA.