Context and question: In 1872, Russian Alexander Lodygin invented an incandescent light bulb and obtained a Russian patent in 1874. He used as a burner two carbon rods of diminished section in a glass receiver, hermetically sealed, and filled with nitrogen, electrically arranged so that the current could be passed to the second carbon when the first had been consumed. Later he lived in the USA, changed his name to Alexander de Lodyguine and applied and obtained patents for incandescent lamps having chromium, iridium, rhodium, ruthenium, osmium, molybdenum and tungsten filaments, and a bulb using a molybdenum filament was demonstrated at the world fair of 1900 in Paris.
What did Lodygin use as a burner in his lamp?
Answer: two carbon rods
Context and question: As noted above, there are 55 tinkhundla in Swaziland and each elects one representative to the House of Assembly of Swaziland. Each inkhundla has a development committee (bucopho) elected from the various constituency chiefdoms in its area for a five-year term. Bucopho bring to the inkhundla all matters of interest and concern to their various chiefdoms, and take back to the chiefdoms the decisions of the inkhundla. The chairman of the bucopho is elected at the inkhundla and is called indvuna ye nkhundla.
What do the tinkhundla bring to the House Assembly?
Answer: unanswerable
Context and question: Even so, the decision by OKL to support the strategy in Directive 23 was instigated by two considerations, both of which had little to do with wanting to destroy Britain's sea communications in conjunction with the Kriegsmarine. First, the difficulty in estimating the impact of bombing upon war production was becoming apparent, and second, the conclusion British morale was unlikely to break led OKL to adopt the naval option. The indifference displayed by OKL to Directive 23 was perhaps best demonstrated in operational directives which diluted its effect. They emphasised the core strategic interest was attacking ports but they insisted in maintaining pressure, or diverting strength, onto industries building aircraft, anti-aircraft guns, and explosives. Other targets would be considered if the primary ones could not be attacked because of weather conditions.
When would other targets be considered available?
Answer:
if the primary ones could not be attacked because of weather conditions