#Lightning generates temperatures hotter than the surface of the sun, in excess of 20,000 degrees Celsius.
It takes a specific amount of energy to vaporise sand into gas. First the sand has to be heated to around 1700°C, about the temperature of molten lava.
At this temperature, the sand melts. The molten sand then has to heat to just shy of 3000°C, when it vaporises. It takes about 15 megajoules of energy to heat and vaporise a kilogram of sand.
#Fulgurite (or #thunder_arrow) is a trace left by lightning in the #sand (from Latin fulgur - #lightning). The high temperature of the lightning caused the sand to melt, forming natural #glass. Thunder arrow are a few centimeters wide and can be several meters long. The natural formation of fulgurite is a relatively rare natural #phenomenon.
Photo by Luis Lizama (first photo)
Photo by Artūras Štaudė (second photo)
Fulgurite are a glassy silica mineral fused in the heat from lightning striking sand.
Forscher entdeckt neues Phosphormaterial nach einem #Blitzschlag in #Florida
#Blitz, #Blitzeinschlag, #Fulgurite, #Mineral, #Phosphor, #Florida
Nachdem ein Blitz in einem Baum in New Port Richey (Florida) einschlug, entdeckte ein Professor der University of South Florida, dass der Einschlag zur Bildung eines neuen Phosphormaterials führte. Es wurde in einem Gestein gefunden – erstmals in fester Form auf der Erde – und könnte ein Mitglied einer neuen Mineralgruppe darstellen. "Wir haben dieses
Jan Tobias Muehlberg
earthling
attresa.geo
ScienceActually
Matt Willemsen
astropage.eu