We would like to express our deepest appreciation to School of Science and Technology, Singapore for giving us this unique opportunity to learn about and conduct research in our area of interest in Science. We would like to express our gratitude for our mentor, Mr Tan Hoe Teck, for the suggestion of this research topic, the patient guidance, and critiques of the research project and experimental process. We would also like to thank our teacher, Ms Kassandra Lim, for her guidance in writing the research proposal and the research paper. Our grateful thanks are also extended to our workshop instructor, Mr Mansor, for helping us create the shake table and supervision during the experiments. Finally, we would like to thank the various SST students who helped us when we were short of manpower.