Most useful invention

[Flyinhillbilly]

What do you guys think man's most useful invention has been?
I'm not talking about discoveries, but rather something that was created from raw materials to serve a purpose.


I'm going with the spring.

 

[Hellion]

Screw.

 

[Ebrownie]

The lightbulb.

 

[chancer]

Gravity

 

[Randy H]

Toilet paper. Wait no, velcro, cuz you can use velcro as toilet paper too.

 

[Rail rider]

Visegrips

 

[mckutzy]

Rope and cordage...

 

[Texan]

Wheel

 

[ultralight01]

The engine.
And the wrench.
And metal alloys.

 

[Flyinhillbilly]

Gravity

I think that falls under discovery

 

[OzFab]

I have to go with Texan on this one; without the wheel, we wouldn't have much at all...

The issue with the way most people interpret that is very narrow minded; think bigger picture, how many parts of an engine wouldn't exist without the wheel?

The word "wheel" is defined as "a circular object that revolves on an axle and is fixed below a vehicle or other object to enable it to move over the ground" but, in broader terms, it's "a circular object that revolves on an axle to transfer a load"...

 

[chancer]

Wheel

Still that is just too easy!
I wanna go with "Sliced Bread" since Gravity has been deemed a Discovery!

 

[Bbqjoe]

Gunpowder?

 

[Rail rider]

Still that is just too easy!
I wanna go with "Sliced Bread" since Gravity has been deemed a Discovery!

And leaving out the bread slicer ... Well, we wouldn't have that either..

---------- Post added at 11:40 PM ---------- Previous post was at 11:36 PM ----------

Gunpowder?

For the win....... In a shtf world when the wheels are flat and we are eating unladen bread. Gunpowder will feed and protect us. Stock up on acid and saw dust .

 

[Jfive]

Vasectomy?

 

[Bbqjoe]

Stock up on acid and saw dust .

I feel as though I should know the meaning of this.

 

[Rail rider]

I feel as though I should know the meaning of this.

Nitrocellulose aka smokeless powder is made from acid and any cellulose material . PM me if you want the recipe. it's a lot cleaner and easier then black powder.

 

[ezcome-ezgo]

Pie

 

[Flyinhillbilly]

I think I want to change mine to guns. I can get as much of anything I need with guns.

 

[Bbqjoe]

I think I want to change mine to guns. I can get as much of anything I need with guns.

Which of course takes us back to gunpowder.