Official Factorio Wiki - User contributions [en]

Lab

2018-05-02T16:43:45Z

Jebnor: Typo

{{Languages}}
{{:Infobox:Lab}}
[[File:Simplescience.png|thumb|right|Science packs put into the front lab will be passed to labs behind it.]]
'''Labs''' are buildings that perform [[research]] for [[technologies]] by consuming [[science pack]]s. Use of a lab is required to progress in Factorio.

The player can only research one technology at a time, but can use multiple labs for faster results. The speed bonus of labs when [[Lab research speed (research)|Lab research speed]] is researched and modules are present can be calculated using this formula: <code>research_bonus * module_bonus = speed_bonus</code>; the percentage bonuses have to be converted to decimals (e.g. +140% = 2.4) before the formula is used.

When [[productivity module]]s are used in labs, the productivity bonus is directly calculated and applied each [[game-tick|tick]] so the productivity bar is simply cosmetic. This means that it does not matter that the productivity bar resets when the research is changed, no productivity bonus is lost. [https://forums.factorio.com/26860]

==Production requirements==
Calculating the number of science packs needed per second is straightforward:
* <code>Effective Lab Research Speed = 1 + <in-game Lab Research Speed bonus %>/100</code>
* <code>Adjusted Cycle Time = <in-game Cycle Time> /<Effective Lab Research Speed></code>
* <code>Packs per Second = 1 / (Adjusted Cycle Time / <# of labs>)</code>

Thus, for a 10 lab setup, researching Nuclear Power (30 second cycle time) with Lab Research Speed 4 (140% bonus), the math would be:
* ELRS = 1 + 140/100
**= 2.4
* ACT = 30 / 2.4
**= 12.5 seconds, adjusted cycle time
* PPS = 1 / (12.5 / 10)
**= 0.8 Science per second

This means 0.8 science packs per second, of each type, would need to be produced to continuously supply the labs.

=== Equation simplification ===
The above calculations can be combined into one equation provided all labs have the same <in-game Lab Research Speed Bonus>.
* <code>Packs per Second = <# of labs> * ((<in-game Lab Research Speed Bonus %> / 100) + 1) / <in-game Cycle Time></code>
* PPS = 10 * (1 + (140/100)) / 30
**= 10/30 * (1 + 1.4)
**= 1/3 * 2.4
**= 0.8 packs per second

== History ==

{{history|0.12.6|
* The research speed of a lab is now not dependent on its electricity consumption, and can be scripted.}}

{{history|0.12.0|
* Lab research is now continuous; Science packs now have progress bars.}}

{{history|0.9.2|
* Labs are now named after early access backers when built from [[blueprint]]s.}}

{{history|0.7.2|
* Changed the recipe of Lab to require 4 transport belts, down from 5.}}

{{history|0.6.0|
* New graphics.}}

{{history|0.2.7|
* Contents of the Lab is now shown in the entity info. }}

{{history|0.1.0|
* Introduced }}

==See also==
* [[Electric system]]
* [[Crafting]]

{{ProductionNav}}
{{C|Producers}}

Lab

2018-05-02T16:42:57Z

Jebnor: Add Equation Simplification subsection

{{Languages}}
{{:Infobox:Lab}}
[[File:Simplescience.png|thumb|right|Science packs put into the front lab will be passed to labs behind it.]]
'''Labs''' are buildings that perform [[research]] for [[technologies]] by consuming [[science pack]]s. Use of a lab is required to progress in Factorio.

The player can only research one technology at a time, but can use multiple labs for faster results. The speed bonus of labs when [[Lab research speed (research)|Lab research speed]] is researched and modules are present can be calculated using this formula: <code>research_bonus * module_bonus = speed_bonus</code>; the percentage bonuses have to be converted to decimals (e.g. +140% = 2.4) before the formula is used.

When [[productivity module]]s are used in labs, the productivity bonus is directly calculated and applied each [[game-tick|tick]] so the productivity bar is simply cosmetic. This means that it does not matter that the productivity bar resets when the research is changed, no productivity bonus is lost. [https://forums.factorio.com/26860]

==Production requirements==
Calculating the number of science packs needed per second is straightforward:
* <code>Effective Lab Research Speed = 1 + <in-game Lab Research Speed bonus %>/100</code>
* <code>Adjusted Cycle Time = <in-game Cycle Time> /<Effective Lab Research Speed></code>
* <code>Packs per Second = 1 / (Adjusted Cycle Time / <# of labs>)</code>

Thus, for a 10 lab setup, researching Nuclear Power (30 second cycle time) with Lab Research Speed 4 (140% bonus), the math would be:
* ELRS = 1 + 140/100
**= 2.4
* ACT = 30 / 2.4
**= 12.5 seconds, adjusted cycle time
* PPS = 1 / (12.5 / 10)
**= 0.8 Science per second

This means 0.8 science packs per second, of each type, would need to be produced to continuously supply the labs.

=== Equation simplification ===
The above calculations can be combined into one equation provided all labs have the same <in-game Lab Research Speed Bonus>.
* <code>Packs per Second = <# of labs> * ((<in-game Lab Research Speed Bonus> / 100) + 1) / <in-game Cycle Time></code>
* PPS = 10 * (1 + (140/100)) / 30
**= 10/30 * (1 + 1.4)
**= 1/3 * 2.4
**= 0.8 packs per second

== History ==

{{history|0.12.6|
* The research speed of a lab is now not dependent on its electricity consumption, and can be scripted.}}

{{history|0.12.0|
* Lab research is now continuous; Science packs now have progress bars.}}

{{history|0.9.2|
* Labs are now named after early access backers when built from [[blueprint]]s.}}

{{history|0.7.2|
* Changed the recipe of Lab to require 4 transport belts, down from 5.}}

{{history|0.6.0|
* New graphics.}}

{{history|0.2.7|
* Contents of the Lab is now shown in the entity info. }}

{{history|0.1.0|
* Introduced }}

==See also==
* [[Electric system]]
* [[Crafting]]

{{ProductionNav}}
{{C|Producers}}

Lab

2018-05-02T16:42:28Z

Jebnor: Addition of Effective Lab Research speed to Production example

{{Languages}}
{{:Infobox:Lab}}
[[File:Simplescience.png|thumb|right|Science packs put into the front lab will be passed to labs behind it.]]
'''Labs''' are buildings that perform [[research]] for [[technologies]] by consuming [[science pack]]s. Use of a lab is required to progress in Factorio.

The player can only research one technology at a time, but can use multiple labs for faster results. The speed bonus of labs when [[Lab research speed (research)|Lab research speed]] is researched and modules are present can be calculated using this formula: <code>research_bonus * module_bonus = speed_bonus</code>; the percentage bonuses have to be converted to decimals (e.g. +140% = 2.4) before the formula is used.

When [[productivity module]]s are used in labs, the productivity bonus is directly calculated and applied each [[game-tick|tick]] so the productivity bar is simply cosmetic. This means that it does not matter that the productivity bar resets when the research is changed, no productivity bonus is lost. [https://forums.factorio.com/26860]

==Production requirements==
Calculating the number of science packs needed per second is straightforward:
* <code>Effective Lab Research Speed = 1 + <in-game Lab Research Speed bonus %>/100</code>
* <code>Adjusted Cycle Time = <in-game Cycle Time> /<Effective Lab Research Speed></code>
* <code>Packs per Second = 1 / (Adjusted Cycle Time / <# of labs>)</code>

Thus, for a 10 lab setup, researching Nuclear Power (30 second cycle time) with Lab Research Speed 4 (140% bonus), the math would be:
* ELRS = 1 + 140/100
**= 2.4
* ACT = 30 / 2.4
**= 12.5 seconds, adjusted cycle time
* PPS = 1 / (12.5 / 10)
**= 0.8 Science per second

This means 0.8 science packs per second, of each type, would need to be produced to continuously supply the labs.

== History ==

{{history|0.12.6|
* The research speed of a lab is now not dependent on its electricity consumption, and can be scripted.}}

{{history|0.12.0|
* Lab research is now continuous; Science packs now have progress bars.}}

{{history|0.9.2|
* Labs are now named after early access backers when built from [[blueprint]]s.}}

{{history|0.7.2|
* Changed the recipe of Lab to require 4 transport belts, down from 5.}}

{{history|0.6.0|
* New graphics.}}

{{history|0.2.7|
* Contents of the Lab is now shown in the entity info. }}

{{history|0.1.0|
* Introduced }}

==See also==
* [[Electric system]]
* [[Crafting]]

{{ProductionNav}}
{{C|Producers}}

Lab

2018-05-02T16:22:15Z

Jebnor: Clarification to 'Adjusted Cycle time' calculation.

{{Languages}}
{{:Infobox:Lab}}
[[File:Simplescience.png|thumb|right|Science packs put into the front lab will be passed to labs behind it.]]
'''Labs''' are buildings that perform [[research]] for [[technologies]] by consuming [[science pack]]s. Use of a lab is required to progress in Factorio.

The player can only research one technology at a time, but can use multiple labs for faster results. The speed bonus of labs when [[Lab research speed (research)|Lab research speed]] is researched and modules are present can be calculated using this formula: <code>research_bonus * module_bonus = speed_bonus</code>; the percentage bonuses have to be converted to decimals (e.g. +140% = 2.4) before the formula is used.

When [[productivity module]]s are used in labs, the productivity bonus is directly calculated and applied each [[game-tick|tick]] so the productivity bar is simply cosmetic. This means that it does not matter that the productivity bar resets when the research is changed, no productivity bonus is lost. [https://forums.factorio.com/26860]

==Production requirements==
Calculating the number of science packs needed per second is straightforward:
* <code>Adjusted Cycle Time = <in-game Cycle Time> /((<in-game Lab Research Speed Bonus> / 100) + 1)</code>
* <code>Packs per Second = 1 / (Adjusted Cycle Time / <# of labs>)</code>

Thus, for a 10 lab setup, researching Nuclear Power (30 second cycle time) with Lab Research Speed 4 (140% bonus), the math would be:
* ACT = 30 / ((140 / 100) + 1)
**= 12.5 seconds, adjusted cycle time
* PPS = 1 / (12.5 / 10)
**= 0.8 Science per second

This means 0.8 science packs per second, of each type, would need to be produced to continuously supply the labs.

== History ==

{{history|0.12.6|
* The research speed of a lab is now not dependent on its electricity consumption, and can be scripted.}}

{{history|0.12.0|
* Lab research is now continuous; Science packs now have progress bars.}}

{{history|0.9.2|
* Labs are now named after early access backers when built from [[blueprint]]s.}}

{{history|0.7.2|
* Changed the recipe of Lab to require 4 transport belts, down from 5.}}

{{history|0.6.0|
* New graphics.}}

{{history|0.2.7|
* Contents of the Lab is now shown in the entity info. }}

{{history|0.1.0|
* Introduced }}

==See also==
* [[Electric system]]
* [[Crafting]]

{{ProductionNav}}
{{C|Producers}}