Context: Charles Pollak (born Karol Pollak), the inventor of the first electrolytic capacitors, found out that the oxide layer on an aluminum anode remained stable in a neutral or alkaline electrolyte, even when the power was switched off. In 1896 he filed a patent for an "Electric liquid capacitor with aluminum electrodes." Solid electrolyte tantalum capacitors were invented by Bell Laboratories in the early 1950s as a miniaturized and more reliable low-voltage support capacitor to complement their newly invented transistor.

Question: Who invented the first electrolytic capacitor?
Answer: Charles Pollak

Question: In what sort of electrolyte does the oxide layer on an aluminum anode remain stable?
Answer: a neutral or alkaline electrolyte

Question: In what year was the patent filed for an electric liquid capacitor?
Answer: In 1896

Question: What sort of capacitors were created by Bell Labs in the 1950's?
Answer: Solid electrolyte tantalum capacitors

Question: Why did Bell labs create their new type of capacitor?
Answer: to complement their newly invented transistor

Question:  Who invented the second electrolytic capacitor?
Answer: Unanswerable

Question: In what sort of electrolyte does the oxide layer on an aluminum anode remain unstable?
Answer: Unanswerable

Question: What happened in 1899?
Answer: Unanswerable

Question:  What sort of capacitors were created by Bell Labs in the 1940's?
Answer: Unanswerable

Question:  Why did Mell labs create their new type of capacitor?
Answer: Unanswerable