Jalousie window sustainable living. A commonly accepted advantage of jalousie windows is their ability to be left part way open in heavy rains as a way to maintain desirable ventilation, whether a sunshower or prolonged tropical storm. An experiment in 1960 tested the efficacy of jalousie windows in tropical climates to exclude rain while still allowing for air flow. A major issue with excluding rain while allowing air flow is that both tend to come from the same direction. The angled slatted jalousie windows give the impression of solving this issue, however, the actual efficacy of the windows to let in air
Types of volcanic eruptions Types of volcanic eruptions Several types of volcanic eruptions—during which lava, tephra (ash, lapilli, volcanic bombs and volcanic blocks), and assorted gases are expelled from a volcanic vent or fissure—have been distinguished by volcanologists. These are often named after famous volcanoes where that type of behavior has been observed. Some volcanoes may exhibit only one characteristic type of eruption during a period of activity, while others may display an entire sequence of types all in one eruptive series. There are three different types of eruptions. The most well-observed are magmatic eruptions, which involve the decompression of gas within magma that