Joule
From Memory Alpha, the free Star Trek reference.
A joule is a unit of energy, named after scientist James Prescott Joule. An explosion of 4.184 gigajoules is the equivalent amount of energy to that released by one metric ton explosion.
As a measurement of power, one joule per second is equal to one watt.
[edit] Comparative list of energies
- Millijoule = 0.001 joule
- Tom Paris used a cardio-stimulator to cajole the heart of Brin's son to life. Although the initial charge of 3 millijoules was unsuccessful, the second charge set at 5 millijoules was successful. (VOY: "Friendship One")
- Kilojoule = 1 thousand joules
- The deflector shield protecting the Lysian Central Command had an output of 4.3 kilojoules and could have easily been taken out with a single photon torpedo. (TNG: "Conundrum")
- Megajoule = 1 million joules
- The unidentified aliens placed a device on board Enterprise which ran with a tremendous amount of energy, over six hundred megajoules. (ENT: "Silent Enemy")
- Starfleet phaser rifle's energy cell has an output of 1.05 megajoules per second. (TNG: "The Mind's Eye")
- The disruptor capacity of 24th century Lysian destroyers were rated at 2.1 megajoules. (TNG: "Conundrum")
- A Cardassian phase-disruptor rifle has a 4.7 megajoule power capacity, three-millisecond recharge, and two beam settings. (DS9: "Return to Grace")
- In an attempt to activate a scanner discovered in the Gamma Quadrant, Data suggests transferring 20 megajoules of energy from the dilithium chamber into the plasma inputs of the device. (TNG: "Birthright, Part I")
- When transporting a test cylinder to a Romulan science vessel through a micro-wormhole, B'Elanna Torres ordered for power to the phase transition coils to be increased to 37 megajoules. (VOY: "Eye of the Needle")
- The Nechisti shrine had 800 megajoules of biogenic energy running through it. (VOY: "Sacred Ground")
- Gigajoule = 1 billion joules
- The Breen CRM 114 was capable of cutting through shields with an output of up to 4.6 gigajoules. (DS9: "Business as Usual")
- 22nd century Earth Starfleet phase cannons had multiphasic emitters and a maximum yield of 80 gigajoules. (ENT: "Cogenitor")
- These phase cannons were rated for a maximum power output of 500 gigajoules. (ENT: "Silent Enemy")
- Terajoule = 1 trillion joules
- The graviton ellipse contains 30 million terajoules of subspace energy. (VOY: "One Small Step")
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