World Earth Day is observed annually on April 22 by people worldwide. This day serves as a reminder that we must protect the ...

Designs targeted at drawing power from the air can be traced to Serbian-American inventor Nikola Tesla. In the early twentieth century, Tesla began experimenting with the electrical charges in the ...

The air transport sector is enjoying an optimistic growth rate while at the same time eliciting growing concern, due to its environmental impact and its vulnerability with respect to energy security.