What's the differente between　見つかる and　見つける ?

Question

Answer

以下コメントです。

present tense (past tense)
見つける(見つけた）/ 気づく（気づいた）= find(found)

- While we were walking, we found  a house.
（私たちは歩いている途中に家を見つけた）

- I found that the balustrade of the stairs at this house was made in England in 1870.
（私はこの家の階段の手すりが１８７０年のイギリス製だという事に気づいた）

見つかる(見つかった）= to be found

- Accidentally that conspirator was found by the police at the haircut.
偶然にその共謀者は散髪屋で警察に見つかった。

- This particular Chinese vase was found in Egypt in early 1800s'.
この特別な中国の花瓶は、1800年の初期にエジプトで見つかった。

Answer

[a person] が/は [something] を　見つける　-transitive

[something]が/は　見つかる  -intransitive

Unless you really need to mention WHO found it, it's more natural to use intransitive verb.

Answer

見つかる = intransitive verb; has no object
見つける = transitive verb; requires an object

This is a typical example of transitive-intransitive verb pairs. There are lot of these in Japanese. So start getting used to them.

Answer

見つかる - to be found; to be discovered;

見つける - 
     1: to discover; to find (e.g. an error in a book); to come across; to detect; to spot;
     2: to locate; to find (e.g. something missing); to find fault;
     3: to be used to seeing; to be familiar with

Answer

to be found and to find. one of those transitive intransitive verbs