Abstract: The various embodiments herein provide a compact air filter mask with adjustable size comprising a nostril unit and a filter unit. The nostril unit comprises a nostril cap and an air pipe. The nostril unit holds the air filter mask tightly inside a nostril of a wearer. The filter unit comprises an upper cap, a filter and a lower base. The nostril unit is fixed removably in the filter unit.

Abstract: A method for constructing a building structure using gravity and weight of the building structure is provided. The method includes designing an architecture and a construction plan of the building structure, planning an initial box for a structural design, tuning a ground required for construction of the building structure, constructing the initial box as per the planning, constructing an upper floor on the initial box, constructing remaining parts of the building structure including foundation for the building structure, and assembling a plurality of temporary structures to the building structure.

Abstract: A method for constructing a building structure using gravity and weight of the building structure is provided. The method includes designing an architecture and a construction plan of the building structure, planning an initial box for a structural design, tuning a ground required for construction of the building structure, constructing the initial box as per the planning, constructing an upper floor on the initial box, constructing remaining parts of the building structure including foundation for the building structure, and assembling a plurality of temporary structures to the building structure.

Abstract: The embodiments herein provide a system and method to convert gravity into continuous rotational motion of a wheel through non-compressible liquid. The system comprises a wheel. Several cylinders and pistons are arranged and equally spaced on the wheel. The cylinders arranged diagonally opposite to each other are connected through a pipe to provide a pathway for the non-compressible fluid. A folding bag is provided in each cylinder and filled with the non-compressible fluid. The folding bags arranged diagonally opposite to each other are connected through connecting pipes. The non-compressible liquid flows into the folding bags based on the motion of the wheel. Each folding bag expands and folds depending on the amount of fluid in the folding bag. The fluid motion maintains the imbalance of the wheel's weight and the wheel sustains the rotational motion.