Mr Tan Hoe Teck has been guiding and helping us throughout this project. We would like to show him our gratitude for helping us in buying the equipment required, giving feedback and advice, suggesting ideas to improve our experiment and also giving us moral support. We would also like to thank Mr Saiful, who has been helping us with the equipment since the early stages of our experiment. Without his help, we could not have even begun the experiment as our equipment would not have been set up properly. We are truly grateful for their support and assistance and would like to thank them.