The problem: Answer a question about this article:
Early research into circadian rhythms suggested that most people preferred a day closer to 25 hours when isolated from external stimuli like daylight and timekeeping. However, this research was faulty because it failed to shield the participants from artificial light. Although subjects were shielded from time cues (like clocks) and daylight, the researchers were not aware of the phase-delaying effects of indoor electric lights.[dubious – discuss] The subjects were allowed to turn on light when they were awake and to turn it off when they wanted to sleep. Electric light in the evening delayed their circadian phase.[citation needed] A more stringent study conducted in 1999 by Harvard University estimated the natural human rhythm to be closer to 24 hours, 11 minutes: much closer to the solar day but still not perfectly in sync.
To what is the 24 hours, 11 minutes day outcome of research closest ?
****
The answer: solar day


The problem: Answer a question about this article:
Boston Common, located near the Financial District and Beacon Hill, is the oldest public park in the United States. Along with the adjacent Boston Public Garden, it is part of the Emerald Necklace, a string of parks designed by Frederick Law Olmsted to encircle the city. The Emerald Necklace includes Jamaica Pond, Boston's largest body of freshwater, and Franklin Park, the city's largest park and home of the Franklin Park Zoo. Another major park is the Esplanade, located along the banks of the Charles River. The Hatch Shell, an outdoor concert venue, is located adjacent to the Charles River Esplanade. Other parks are scattered throughout the city, with the major parks and beaches located near Castle Island; in Charlestown; and along the Dorchester, South Boston, and East Boston shorelines.
The Emerald necklace is a string of what?
****
The answer: parks


The problem: Answer a question about this article:
The first mention of the name "Rajasthan" appears in James Tod's 1829 publication Annals and Antiquities of Rajast'han or the Central and Western Rajpoot States of India, while the earliest known record of "Rajputana" as a name for the region is in George Thomas's 1800 memoir Military Memories. John Keay, in his book India: A History, stated that "Rajputana" was coined by the British in 1829, John Briggs, translating Ferishta's history of early Islamic India, used the phrase "Rajpoot (Rajput) princes" rather than "Indian princes".
In what publication did the name Rajasthan first appear?
****
The answer: Annals and Antiquities of Rajast'han or the Central and Western Rajpoot States of India


The problem: Answer a question about this article:
In 1989, the first ISPs were established in Australia and the United States. In Brookline, Massachusetts, The World became the first commercial ISP in the US. Its first customer was served in November 1989.
what was the name of the first commercial isp in the us?
****
The answer:
The World