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 the layer of the atmosphere that reflects radio waves. This effect is caused by the ionization, or electrical charging, of the gas particles present in the upper atmosphere by... The ionosphere is the layer of the atmosphere that reflects radio waves. This effect is caused by the ionization, or electrical charging, of the gas particles present in the upper atmosphere by X-rays and ultraviolet rays emitted by the sun.