hi i want to know about the fire alarm system because it is must while we are in any emergency.fire alarm is totally a different kind of machine for fire...

[FONT=&quot]VAWTs (#-Link-Snipped-#) are both efficient and quiet, making them more suitable for energy production in residential areas than previous wind-based renewable energy technologies. Many current VAWT models resemble eggbeaters, with...

There are two types of wind turbines; horizontal and vertical. They’re also known as HAWT or VAWT, which stands for horizontal axis wind turbine or vertical axis wind turbine. A...

HI Vertical Axis Wind Turbine was designed to respond to the ever increasing demand for wind turbines that work well in the urban environment, where wind speeds are lower and...