9 Brilliant Animated GIFs That Show How The World Really Works

GIF animated images are useful when it comes to learning how stuff works. 

They can make topics as tortuous as trigonometry interesting and fun, but they can also be used to show how normal, real-world stuff works. 

From Reddit’s impeccable EducationalGifs subreddit, here are 9 GIFs that show you how cool stuff really works:

First of all, here’s how a key opens a lock: 

how a key works

Tomorrow Started

 

And here’s how you pick a lock. The tool on the bottom is a torsion wrench, exerting rotational pressure like the key would. The pick does what the key would do to each of the pins one at a time. 

lockpick gif

Reddit

How an AK-47 works:

ak-47 operation

Reddit

How the Geneva drive — the mechanical step that makes the second hand on a clock work by turning constant rotation into intermittent motion — functions.

Geneva mechanism watch

Reddit

How an electric motor works:

electric motor

Reddit

How a four stage gasoline engine work. Blue is a gas-air mixture, red is an exploding gas-air mixture, and black is exhaust:

four stroke engine gif

Reddit

 

Here’s how an aircraft’s radial engine works:

radial engine gif

Reddit

How a sewing machine functions:

sewing  machine

Reddit

 

How a zipper works:

zipper gif

Reddit

 

See even more at /r/EducationalGifs >

NOW WATCH: Briefing videos

Business Insider Emails & Alerts

Site highlights each day to your inbox.

Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.