Glass fibers can also occur naturally, as Pele's hair. Glass wool, which is one product called fiberglass today, was invented in 1932â1933 by Russell Games Slayter of Owens-Corning, as a material to be used as thermal building insulation.he first type of glass used for fiber was soda lime glass or A-glass (A for the alkali it contains). It is not very resistant to alkali. A new type, E-glass, was formed; this is an alumino-borosilicate glass that is alkali This was the first glass formulation used for continuous filament formation.
Average Temperatures in Port-Au-Prince, Haiti. 1  The mean annual temperature in Port-Au-Prince, Haiti is very hot at 28.1 degrees Celsius (82.6 degrees Fahrenheit).
Early spring may still experience some cooler days (where a light coat or sweater is needed), but in late April and May the days are much warmer when only short sleeves can be worn. Occasional rain showers may occur at this time. Average temperatures range from 2Â°C to 17Â°C (35 to 62Â°F). Summer starts in June and lasts until August. This is the hottest time of year when temperatures can exceed 30Â°C (86Â°F) with high humidity. Summer is also the rainy season, particularly during the hot and muggy month of July. Average temperatures range from 21Â°C to 30Â°C (70 Â°F to 86Â°F).