Chattanooga, Tennessee, has one of the most advanced power grids in the US, able to self-repair and restore power within seconds.
The 30m-long death pit suddenly appeared in the middle of a large road surface in Japan, causing many people to panic.
Serious flooding, power shortages, power outages or traffic jams are pressures that big cities in Asia are suffering under the impact of dizzying economic development, extreme
In the world there are many products that most will find it not useful, but for the few people who need it will bring a great effect, such as the integrated 3G phone socket called
At night, a sudden power outage, in the hands of no available candy box and do not remember the candle to where it is difficult to grope in the dark.