The explosion at around 17.00 local time on Monday came during painting works at plant on the Yenisei River upstream of the city of Krasnoyarsk.
Kids learn how to tell apart a dog and wolf footprint, to make a LED torch, how a hydraulic unit works, and who a bear wakes first.
Demands increased on 3 August for a 'state of emergency' to be declared on the world's fifth longest river due to a catastrophic shortage of water.
A gargantuan investment in economic development across many eastern Russian regions was confirmed in Irkutsk by En+ Group.
A theme of modernisation was behind the prime minister's swing through Siberia this week.
Intense search reveals no sign of Mil Mi-8 lost early Saturday with 12 people on board.