The Townâs history is documented in the Bedford collection at the Bedford Public Library. Visitors are drawn to view historic sites including homes, the Old Burying Ground, The Wilson Mill, the Job Lane House and the original Bedford Flag that was taken to the battle of Lexington and Concord in 1775.
The phenomena of atmospheric electricity are of three kinds. There is the electrical phenomena of thunderstorms and there are the phenomena of continual electrification in the air, and the phenomena of the polar Aurora constitute a third branch of the subject.
The ionosphere is a layer of the earth's atmosphere that is weakly ionized, and thus conducts electricity . It is located approximately in the same region as the top half of the mesosphere and the entire thermosphere in the upper atmosphere, from about 40 mi (60 km), continuing upward to the magnetosphere.