Question: Leakage is equivalent to a resistor in parallel with the capacitor. Constant exposure to heat can cause dielectric breakdown and excessive leakage, a problem often seen in older vacuum tube circuits, particularly where oiled paper and foil capacitors were used. In many vacuum tube circuits, interstage coupling capacitors are used to conduct a varying signal from the plate of one tube to the grid circuit of the next stage. A leaky capacitor can cause the grid circuit voltage to be raised from its normal bias setting, causing excessive current or signal distortion in the downstream tube. In power amplifiers this can cause the plates to glow red, or current limiting resistors to overheat, even fail. Similar considerations apply to component fabricated solid-state (transistor) amplifiers, but owing to lower heat production and the use of modern polyester dielectric barriers this once-common problem has become relatively rare.
Is there an answer to this question: What can cause excessive leakage in a capacitor?

Answer: Constant exposure to heat


Question: Serological methods are highly sensitive, specific and often extremely rapid tests used to identify microorganisms. These tests are based upon the ability of an antibody to bind specifically to an antigen. The antigen, usually a protein or carbohydrate made by an infectious agent, is bound by the antibody. This binding then sets off a chain of events that can be visibly obvious in various ways, dependent upon the test. For example, "Strep throat" is often diagnosed within minutes, and is based on the appearance of antigens made by the causative agent, S. pyogenes, that is retrieved from a patients throat with a cotton swab. Serological tests, if available, are usually the preferred route of identification, however the tests are costly to develop and the reagents used in the test often require refrigeration. Some serological methods are extremely costly, although when commonly used, such as with the "strep test", they can be inexpensive.
Is there an answer to this question: What is the antigen bound to by the antibody usually not part of?

Answer: unanswerable


Question: There are 29 isotopes of copper. 63Cu and 65Cu are stable, with 63Cu comprising approximately 69% of naturally occurring copper; they both have a spin of 3⁄2. The other isotopes are radioactive, with the most stable being 67Cu with a half-life of 61.83 hours. Seven metastable isotopes have been characterized, with 68mCu the longest-lived with a half-life of 3.8 minutes. Isotopes with a mass number above 64 decay by β−, whereas those with a mass number below 64 decay by β+. 64Cu, which has a half-life of 12.7 hours, decays both ways.
Is there an answer to this question: What are the two stable isotopes of cooper?

Answer: 63Cu and 65Cu


Question: The preserved records of the Reichssicherheitshauptamt (the Reich Security Main Office) show the persecution of Freemasons during the Holocaust. RSHA Amt VII (Written Records) was overseen by Professor Franz Six and was responsible for "ideological" tasks, by which was meant the creation of antisemitic and anti-Masonic propaganda. While the number is not accurately known, it is estimated that between 80,000 and 200,000 Freemasons were killed under the Nazi regime. Masonic concentration camp inmates were graded as political prisoners and wore an inverted red triangle.
Is there an answer to this question: Who was responsible for creating antisemetic and anti-masonic propaganda?

Answer:
Professor Franz Six