In your opinion which modern invention or scientific discovery has affected society the most?

The main thing that makes a good invention or discovery is that it must be helpful for humanity. In this case, space research and sending satellite to the space for communication, making prediction for weather and for military when your country is under attack you estimate the bomb’s time or position before it fall down the ground.
First, for developing the communication all over the world, the satellites have much more importance because they prove us to communicate each other easily and wireless. Thirty years ago, we have not got a self-phone in our house but now everyone has got a cell phone. Thus we can communicate easily with other people wherever they are in. And of course we have a wide spread internet web which allows us to access the information all over the world. All of them are helpful for people.

Second, weather prediction for farmers or all people is fateful. It helps to survive in a disaster which is predictable before such as tornado, hurricane or typhoon and you have an idea about tsunami after an earthquake. Farmers get some precaution before heavy rain, snow or hot weather and they could increase farms’ efficiency through these estimates. Pilots can get information about the weather which is cloudy or foggy before they fly. These are essential information for people and these information makes to human’s life easy and safe.

Third, in military research, they can warn people before any attack and they can gain more information about neighbor country which is malicious. They can make their strategic plans before the country is under attacked. They can use GPS technology to find and arrest bad people.

All in all, if any invention or discovery has a good result for humanity, it would be a good or valuable invention. For determining an invention is good or bad, before we have to look its effect on humans’ life.