By Date
Nuclear Shelter
SatanistValera 21 comments
2019 year
SatanistValera 13 comments
1945 year
SatanistValera 12 comments
2020 year
SatanistValera 6 comments
TV-2
SatanistValera 5 comments
Gas-discharge diode
SatanistValera 0 comments
Radioizotope smoke detector
SatanistValera 19 comments
Periodic table of chemical elements
SatanistValera 1 comments