Daniel Gralath was the first to combine several jars in parallel into a "battery" to increase the charge storage capacity. Benjamin Franklin investigated the Leyden jar and came to the conclusion that the charge was stored on the glass, not in the water as others had assumed. He also adopted the term "battery", (denoting the increasing of power with a row of similar units as in a battery of cannon), subsequently applied to clusters of electrochemical cells. Leyden jars were later made by coating the inside and outside of jars with metal foil, leaving a space at the mouth to prevent arcing between the foils.[citation needed] The earliest unit of capacitance was the jar, equivalent to about 1.11 nanofarads.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Why was a gap left at the mouth of Leyden jars?
Ah, so.. to prevent arcing between the foils

^7 A census category recognized as an ethnic group. Most Slavic Muslims (especially in Bosnia, Croatia, Montenegro and Serbia) now opt for Bosniak ethnicity, but some still use the "Muslim" designation. Bosniak and Muslim are considered two ethnonyms for a single ethnicity and the terms may even be used interchangeably. However, a small number of people within Bosnia and Herzegovina declare themselves Bosniak but are not necessarily Muslim by faith.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What country besides Bosnia are Bosniaks always also Muslim?
Ah, so.. unanswerable

Currently, the army is divided into the Regular Army, the Army Reserve, and the Army National Guard. The army is also divided into major branches such as Air Defense Artillery, Infantry, Aviation, Signal Corps, Corps of Engineers, and Armor. Before 1903 members of the National Guard were considered state soldiers unless federalized (i.e., activated) by the President. Since the Militia Act of 1903 all National Guard soldiers have held dual status: as National Guardsmen under the authority of the governor of their state or territory and, when activated, as a reserve of the U.S. Army under the authority of the President.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was the U.S. Navy considered before 1903?
Ah, so..
unanswerable