interesting 17 Pictures That Will Make You Say "Oh, That's How They Do That!"  

Kellen Perry
46.5k votes 15.4k voters 2.8M views 17 items Embed

If you’ve spent any time lurking on Reddit’s mildlyinteresting, interestingasf*ck, or damnthatsinteresting subreddits, you’ve seen them: those pictures that make you slap your forehead and go, “So that’s how they do that!” They’re pictures that give you a behind the scenes peek at how common things function, are assembled, or are maintained.

Below are just some of the most interesting pictures of this kind, from Reddit and beyond. Vote up the ones that blew your mind at least a little.

1
5,027 1,903

How a Log Is Divided Up


How a Log Is Divided Up is listed (or ranked) 1 on the list 17 Pictures That Will Make You Say "Oh, That's How They Do That!"
Photo:  HockeyDude3013/Reddit
2
4,296 1,628

A Bricklaying Machine


A Bricklaying Machine is listed (or ranked) 2 on the list 17 Pictures That Will Make You Say "Oh, That's How They Do That!"
Photo:  Antmatter/Imgur
3
2,416 1,000

Moving a House in 1908


Moving a House in 1908 is listed (or ranked) 3 on the list 17 Pictures That Will Make You Say "Oh, That's How They Do That!"
Photo:  JustBlue/Reddit
4
2,279 990

The Inside of a Bowling Ball


The Inside of a Bowling Ball is listed (or ranked) 4 on the list 17 Pictures That Will Make You Say "Oh, That's How They Do That!"
Photo:  elmielmosong/Reddit