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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.
Why was the mouth of Leyden jars closed?
A: unanswerable

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Proponents of affirmative action argue that by nature the system is not only race based, but also class and gender based. To eliminate two of its key components would undermine the purpose of the entire system. The African American Policy Forum believes that the class based argument is based on the idea that non-poor minorities do not experience racial and gender based discrimination. The AAPF believes that "Race-conscious affirmative action remains necessary to address race-based obstacles that block the path to success of countless people of color of all classes". The groups goes on to say that affirmative action is responsible for creating the African American middle class, so it does not make sense to say that the system only benefits the middle and upper classes.
Other than being race and gender based, what did believers in affirmative action also feel that the system did not discriminate against
A: unanswerable

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Beyonce has received numerous awards. As a solo artist she has sold over 15 million albums in the US, and over 118 million records worldwide (a further 60 million additionally with Destiny's Child), making her one of the best-selling music artists of all time. The Recording Industry Association of America (RIAA) listed Beyonce as the top certified artist of the 2000s, with a total of 64 certifications. Her songs "Crazy in Love", "Single Ladies (Put a Ring on It)", "Halo", and "Irreplaceable" are some of the best-selling singles of all time worldwide. In 2009, The Observer named her the Artist of the Decade and Billboard named her the Top Female Artist and Top Radio Songs Artist of the Decade. In 2010, Billboard named her in their "Top 50 R&B/Hip-Hop Artists of the Past 25 Years" list at number 15. In 2012 VH1 ranked her third on their list of the "100 Greatest Women in Music". Beyonce was the first female artist to be honored with the International Artist Award at the American Music Awards. She has also received the Legend Award at the 2008 World Music Awards and the Billboard Millennium Award at the 2011 Billboard Music Awards.
When Beyonce was with Destiny's Child, how many albums did she manage to sell?
A: 60 million

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The creation of a unified German Empire ended the balance of power that had been created with the Congress of Vienna after the end of the Napoleonic Wars. Germany had established itself as the main power in continental Europe with the most powerful and professional army in the world.[citation needed] Although Great Britain remained the dominant world power, British involvement in European affairs during the late 19th century was very limited, allowing Germany to exercise great influence over the European mainland.[citation needed] Besides, the Crown Prince's marriage with the daughter of Queen Victoria was only the most prominent of several GermanBritish relationships.
The Crown Prince's marriage to whom was considered the most prominent of German-British royal liasons?
A:
the daughter of Queen Victoria