Steam explosion major cause of human fatalities in volcanic eruptions. The 1986 Chernobyl nuclear disaster in Soviet Union was feared to cause major steam explosion (and resulting Europe-wide fallout) upon melting the lava-like nuclear fuel through the reactor's basement towards contact with residue fire-fighting water and groundwater. The threat was averted by frantic tunneling underneath the reactor in order to pump out water and reinforce underlying soil with concrete. When a pressurized container such as the waterside of a steam boiler ruptures, it is always followed by some degree of steam explosion. A common operating temperature and pressure for a marine boiler
Bahá'í Faith in Ukraine all contact was lost. Though Bahá'ís had managed to enter various countries of the Eastern Bloc through the 1950s, there is no known Bahá'í presence in Ukraine from this period, though the head of the religion at the time, Shoghi Effendi, included Ukraine in a list of places where no Bahá'ís pioneer had been yet in 1952 and again in 1953. There have been several Bahá'í converts from descendants of the Ukrainian diasporas. As early as 1954 Canadian Peter Pihichyn of Ukrainian descent translated Bahá'í literature into Ukrainian and by 1963 a Ukrainian Teaching Committee of the Bahá'í National Spiritual