Sci-fi book with a scientist discovers and goes to an alternate reality, where items improve with use
102700
A gateway to a new world/future where things can be improved with use
94284
Short story where a flexible reality hardens to an unchanging one
104530
Protagonist finds coin from a parallel universe, lets it guide him via flipping heads/tails
13271
Identify a book with a social engineering theme
50339
Book identification: technologically-enhanced man (1970s/80s YA)
70647
Book taking place in NW U.S., People find a portal
90138
Old Sci-Fi book with skin crystalizing disease and characters with psi powers
156871
Book, it follows a guy in a dystopian future
92271
70s/80s Sci-Fi book with teleport gates on sub-light spacecraft and an army space suit
17094
Identity novel, short story or book series... slower than light space battles, time dilation and boardings, several planets
28581
Story [novel, novella?] that featured faster-than-light or hyperdrive gained from observing distant drive use, also had a sentient star
155397
sci-fi book where a meteorite gives 3 different kinds of telepathic powers to people who then vie for control
62827
90s-2000s sci-fi book: detective that travels to an alternate world that is first viewed from an airplane
98562
Story about spaceship and a tool
157823
Sci-fi novel with a house used by aliens as a station when space travelling, protected by a force field
147423
Fantasy book that turns out to be post-apocalypse, set several millennia after a nuclear war
16900
A short story about finding an inhabitable planet and meeting aliens