How is the time difference in addition to travel time overcome by using SL?
(A3-2) It can access the place where it wants to take communications such as surveillance center of us who set it up in SL only by operating the personal computer of home and the office. Therefore, neither travel time nor expenditure like RL (Real Life) is needed. And, energy is not basically consumed. This is a big advantage in not only the international activity but also a domestic one. About the time difference, the message can be sent for the image to e-mail the other party who wants to take communications. If this function is used, the problem of the time difference is lost. Only if you overcome travel time and the time difference, it is possible even by e-mail etc. besides SL. However, it is also possible to do the activity to gather guest in SL in the sense similar to RL without putting expenditure like RL. It can be said that there is a big possibility as the communications tool in SL with all these functions. (Q4-1) Because the measurement and disclosure the CO2 density of the
