Curiosity

Curiosity is a mechanic introduced in World 5 and further modified in Hafen, that allows hearthlings to gain Learning Points at the cost of Experience Points. It is implemented by studying peculiar objects either found or created in the game.
The Study Report, found by pressing the Abilities button on the Character Sheet, is where curiosities can be placed for study.
You can't study more than one curiosity of each type at the same time, but you can restudy the same curiosity as many times as you want, as long as you have enough Experience.
The sum of the Mental Weight of your curiosities cannot exceed your Attention Limit, which is equal to your modified Intelligence. Thus, the more intelligence you have, the more curiosities you can study.
The Qualities of each curiosity affects amount of LP gained by studying it. 
As of Hafen, the formula for the LP gained is: 
 LP Gain = BaseLP \times \sqrt{\frac{Quality}{10}} 
Do note that not all curiosities are created equal. Cat Gold, for instance, has a very long study time; but contrary to what was first thought, it also has a low LP gain. The concept is that as the Intelligence of a character rises, you will have attention to spare, so that you can also study the lesser curiosities along with the better ones (unless, of course, you're rich enough to have access to the best ones constantly). And because quality effects the potency of curiosities, as the world becomes established and item qualities begin to rise, some items may gain popularity due to their potential for creating higher quality curiosities.
An example of the quality issue is the Cone Cow versus the Dandelion. Dandelions take twice as long for the same base LP gain. However, to counter for this you can find higher quality Dandelions quite easily, whereas it takes a fair amount of effort to get higher quality Cone Cows (planting and growing high quality trees).
Base LP should be given for the Curiosity with all Qualities at 10.
NOTE: Some of the information listed here is outdated. A google doc table detailing some, but not all, of the updated values of curios can be found here 
__TOC__
== Curiosity Tables ==
=== All Curiosities ===
=== Crafted Curiosities ===
=== Forageable Curiosities ===
=== Miscellaneous Curiosities ===
== Usage Notes ==
* All curiosity articles should be in one of the following categories:
:These (now hidden) categories are currently semi-automatically added based on the information in the infobox (infobox metaobj).
:Any object containing a "lpgain" setting in the infobox is tagged as a curiosity.
:*:Category:Curiosity_crafted - On "ccrafted" setting. (and No "perexp" setting)
:*:Category:Curiosity_foraged - On "perexp" setting.
:*:Category:Curiosity_miscellaneous - Default. (no "perexp" or "ccrafted" setting.)
Category:Guide