Ducting energy recovery ventilators (ERV) can be challenging for HVAC contractors because no two installations are the same. ERVs bring in outdoor air that’s energy-efficiently preheated or precooled ...

TOPEKA, Kan. (WIBW) - The constant changes in weather and increasing heat could be affecting television signals. An unpredictable phenomenon called tropospheric ducting could cause the signal issues ...

<B>Problems with modern CPU cooling, and how they can be overcome through ducting.</B><BR><BR>Anyone familiar with computer cooling will realise that with modern processors, operating at extremely ...

When a television signal is broadcast from a transmitter, some of it disappears upwards into space and is lost. However, during certain weather conditions, the “lost” signal can become bent back ...

When a radio signal is broadcast from a transmitter, some of it disappears upwards into space and is lost. However, during certain weather conditions, the “lost” signal can be bent back towards earth ...