13-Oct-07 (Created: 13-Oct-07) | More in '4th grade technology'

40 what is the impact of using electricity for communication?

Electricity travles very fast, almost instantaneously. So messages sent through telephones travels much faster than paper. This allowed people to communicate faster. This has a big impact on early wars and also in saving lives as danger can be communicated that much faster for example of an approaching hurricane.