Negative and positive impacts of some technical objects

These days we've been reflecting about two very frequent technological objects. Would you be able to analyse the negative and positive impacts of other objects? (for example trains, skyscrapers, computers...)

	POSITIVE	NEGATIVE
MOBILE PHONE	o It helps us communicate o It brings people closer o With smartphones, you can do more things online o You can use it as camera o It involves constant innovation o You can ask for help if you are in danger o You can use it to have fun	o   It can create addiction o   Children abuse in factories o   Mineral wasting o   Privacy and hacking risks o   It takes you away from social interaction (isolation) o   Manufacturing phones is a polluting activity o   Batteries contain dangerous polluting metals o   Traffic accidents o   Energy consuming (battery recharges) o   It damages your sight o   Cyberbullying
CAR	o Faster travelling o It takes us anywhere we want o Always available o It allows us to travel more often o It involves constant innovation o It can take you places in an urgent situation	o   It’s very polluting (air, see, waters) o   Traffic jams o   Road building affects natural environments (tree cuts…) o   It wastes a lot of oil (limited natural resource) o   Accidents o   Less active lifestyle