Original sentence: However, critics point out that the park fails to provide the range of uses of Rockefeller Park.Michael Dumiak, "Simple and bright, heliostats tap sunlight for lighting outdoor and, increasingly, indoor spaces", Architectural Record, May 2007.Teardrop park is also notable for the three eight foot diameter heliostats, or solar mirrors, that reflect the sun from the top of a residential apartment building in Battery Park City.The mirrors were designed by Carpenter Norris Consulting