With the advent of cheap solar panels and high efficiency LED lights which can light a room with just 4 watts of power, these small solar systems deliver useful electricity at a price that even the poor can afford.
cellphone
The Potential Hazards Of Radiofrequency Radiation From Cellphone
Manufacturers recommend that users hold cellphone slightly away from their ears to reduce potential hazards from cellphone.
Does The Use Of Digital Gadget, Forfeit The Downtime For Learning?
In recent years cellphone has evolved to become a portable pocket size personal computer which the digital gadget can readily be tapped to high speed internet connection. The technology makes us potentially productive and engages oneself into online undertaking.