text: The primary blood testing device that Theranos used to test small blood samples was named for this person.
full_question: The primary blood testing device that Theranos used to test small blood samples was named for this person. This man led the unsuccessful attempt to synthesize rubber from goldenrod plants. This man developed a magnetic rock separator, causing him to fund the discovery of the Falconbridge ore load in Ontario. This man established the Black Maria studio to produce kinetoscope film, which was partly developed by scientists in his New Jersey laboratory. For 10 points, name this inventor of the electric light bulb.
first_sentence: The primary blood testing device that Theranos used to test small blood samples was named for this person.