This is a concise reference on scientific concepts and technical devices in Star Trek. Canon facts from the episodes appear as normal text. Italic text denotes annotations and "real-world" information about Star Trek technology. Materials such as duranium and particles such as tetryons are listed under Substances and Particles.
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Substances and Particles - concise guide to the submicroscopic zoo
Power & Propulsion - about the right intermix ratio, warp inside a star system, how to stop a starship etc.
Computers & Communication - about gigaquads & nanometers, holographic backups, universal translators etc.
Transporter, Replicator & Holodeck - about how transporters, replicators and holodecks may work, their limitations and problems
Weapons - about inconsistent weapon and shield efficiencies etc.
Other Technology Inconsistencies - about structural integrity, inoculations, contending hardest substances, forgotten technologies etc.
A Close Look at 22nd Century Technology - complete analysis of its continuity and plausibility in Enterprise
Starship Design Guidelines - Is there such a thing as "good starship design"?
Where are the Jefferies Tubes? - an attempt to fit them into various ship classes
Miscellaneous Starship Problems - a compilation of some general problems
Thanks go to Rick Sternbach for his excellent book Star Trek: The Next Generation Technical Manual, and for useful hints and suggestions in newsgroups. Most of the images in this section are taken from Star Trek: The Next Generation Technical Manual, The Art of Star Trek, Star Trek: The Magazine and the Star Trek Fact Files. Much of the episode information comes from Memory Alpha, several screen caps from TrekCore.