SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
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SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Uchimbaji madini
Mipango 81 inapatikana
Miradi (81)
Ingersoll Rock Drill
na Forge
Utengenezaji wa Kupunguza
32
0
0
0
0
0
Hatari
Understanding Sodium from Halite — The Reactive Metal That Powers Life and Industry
na Peter
Kisasa
3
0
0
0
2
0
Hatari
Understanding Protactinium from Uranium Ore — The Elusive Parent of Actinium
na Peter
Kisasa
1
0
0
0
0
0
Hatari
Understanding Actinium from Uranium Ore — The Element That Named the Actinides
na Peter
Kemia
3
0
0
0
0
0
Hatari
Understanding Radium from Uranium Ore — The Glowing Element That Changed Science and Medicine
na Peter
Kisasa
7
0
0
0
0
0
Hatari
Understanding Francium from Radioactive Decay — The Most Unstable Natural Element
na Peter
Kemia
2
0
0
0
0
0
Hatari
Understanding Radon from Radioactive Decay — The Invisible Killer in Your Basement
na Peter
Kisasa
1
0
0
0
0
0
Hatari
Understanding Astatine from Cyclotron Synthesis — The Rarest Naturally Occurring Element
na Peter
Kemia
0
0
0
0
0
0
Hatari
Understanding Polonium from Uranium Ore — The Deadly Discovery That Launched Nuclear Science
na Peter
Kisasa
1
0
0
0
0
0
Hatari
Understanding Promethium from Nuclear Fission — The Phantom Lanthanide
na Peter
Kisasa
2
0
0
0
0
0
Hatari
Understanding Technetium from Nuclear Fission — The First Artificially Made Element
na Peter
Kisasa
2
0
0
0
0
0
Understanding Xenon from Air Separation — The Strangest Noble Gas
na Peter
Kisasa
1
0
0
0
1
0
Understanding Krypton from Air Separation — The Hidden Gas That Once Defined the Meter
na Peter
Kemia
1
0
0
0
2
0
Understanding Argon from Air Separation — The Invisible Shield Gas
na Peter
Kemia
1
0
0
0
2
0
Understanding Neon from Air Separation — The Gas That Lit the Modern City
na Peter
Kemia
0
0
0
0
3
0
Understanding Helium from Natural Gas — The Element That Escapes Earth Forever
na Peter
Kemia
3
0
0
0
4
0
Hatari
Understanding Thorium from Monazite — The Nuclear Fuel That Could Replace Uranium
na Peter
Nyuklia
1
0
0
0
4
0
Hatari
Understanding Thallium from Pyrite Smelting — The Poisoner's Element
na Peter
Kisasa
1
0
0
0
1
0
Understanding Iridium from Platinum Group Ores — The Asteroid Impact Witness
na Peter
Kisasa
3
0
0
0
1
0
Hatari
Understanding Osmium from Platinum Group Ores — The Densest Element on Earth
na Peter
Kisasa
1
0
0
0
2
0