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
Protestantism in Ukraine Church (GELC) in Ukraine. Pentecostalism came to the Russian Empire, and from there to Ukraine, at the beginning of the 20th century. Pentecostals were preceded by the Molokans and Dukhobors, who prepared the ground for the movement's spread. Pentecostalism was brought to western Ukraine by emigrants who returned from the US. In 1920, the first organized communities appeared in Volyn, northwestern Ukrainian, and in 1924, the first Convention of Christians of the Holy Pentecost was held in Kremenets, where a union of Pentecostal communities was established. Ivan Voronaev was among the first to introduce and expand the Pentecostal movement in