2900-Word Essay Examples. Page 6

615 samples

Pre-Stressed Concrete

The aim of this paper is to discuss the historical developments of pre-stressed concrete, the basic concepts of pre-stressed concrete, and the manufacturing of the pre-stressed concrete.

The Study of Sagittarius A*

The total duration of the project, including the improvement of observing systems, construction of the station, transportation to the Lagrange point, and obtaining the first results, will take at least 4-7 years.