Really life by our own standard must have been hail for them . This is what we think but it might not be so. The light we enjoy today is an improvement on what they achieved. When you go into history you will see how electricity was discovered. It has improved lives. It not only powers out televisions but our industries, means of transportation which of course another form of communication. Internet is just one it.
Camera has also helped in record keeping. It keeps memories of the past. It is the hub of the movie industry. Many people depend on it as their means of livelihood. It helps the security agencies in intelligence gathering. With it they engage in covert operations. The negative side of camera is that it facilitate blackmailing of people. Dubious characters make money from blackmailing others. It is good work.thank you.