Albert Einstein House Clark Marden on July 24, 1935 for an undisclosed sum according to the deed which was recorded by the Mercer County Clerk's Office on August 1, 1935. Albert Einstein reportedly requested that this house not be made a museum, and the family did not want it to be recognized as such. Nonetheless it was added to the National Register of Historic Places and further designated a U.S. National Historic Landmark in 1976. After him, the house was owned by his sculptor step-daughter Margot Einstein until she died in 1986. The house was previously owned by Eric Maskin and his family
Albert Einstein may be derived from the Einstein equations. Since the equations of general relativity are non-linear, a lump of energy made out of pure gravitational fields, like a black hole, would move on a trajectory which is determined by the Einstein equations themselves, not by a new law. So Einstein proposed that the path of a singular solution, like a black hole, would be determined to be a geodesic from general relativity itself. This was established by Einstein, Infeld, and Hoffmann for pointlike objects without angular momentum, and by Roy Kerr for spinning objects. In a 1905 paper, Einstein postulated that