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photo credits: Wikimedia Commons
Calcification is the accumulation of calcium salts in a body tissue. It normally occurs in the formation of bone, but calcium can be deposited abnormally in soft tissue, causing it to harden. Calcifications may be classified on whether there is mineral balance or not, and the location of the calcification. Calcification may also refer to the processes of normal mineral deposition in biological systems, such as the formation of stromatolites or mollusc shells (see Biomineralization). Source: Wikipedia (en)
Works about science fiction 133
Typewriter in the Sky
Fantastic Universe
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Coming Attractions
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Speculations: The Subjunctivity of Science Fiction
Birds of the Master
Astounding: John W. Campbell Memorial Anthology
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Towards an Aesthetic of Science Fiction
On the False Earths
The Visual Encyclopedia of Science Fiction
Heroes of the Equinox
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Future Life
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Index to Fantasy and Science Fiction in Munsey Publications
The Encyclopedia of Science Fiction
Métro Châtelet, Direction Cassiopeia
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history of the Movement From 1854 to 1890
Brooklyn Station, Terminus Cosmos
The Ghosts of Inverloch
The Rage of Hypsis
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First Citizen
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TV Zone
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The Search for Snout
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Como perros!
Hostages of the Ultralum
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Fantázia
Orphan of the Stars
The Robert Heinlein Interview and other Heinleiniana
In Uncertain Times
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Andromeda Spaceways Inflight Magazine
At the Edge of the Great Void
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Farmerphile: The Magazine of Philip José Farmer
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The Enchanter Completed: A Tribute Anthology for L. Sprague de Camp
Zahrah the Windseeker
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