12 things you can learn in around a minute

1) How to put someone in the recovery position

2) 10 Windows shortcuts

• Window Button + Down Key to minimise the currently active window

• Window Button + Up Key to maximise the currently active window

• Window Button + Left Key to align the currently active window on the left and Right key to align on the right

• Window Button + M to minimise all open windows

• Windows Button + D to return directly to the desktop, minimising all the open windows.

• CTRL+SHIFT+ESC to open task manager

• Window key + L to lock the system

• Window key + # to open the application pinned on the taskbar, where # is the position of the icon starting from 1

• Shift + Right click and then select open command prompt here to open the command prompt with the current directory set

• Shift + Right click on any item to see extra options

3) How to entertain yourself if the internet's out

If you get a Google Chrome network error message a cutesy little T-Rex is the one who relays the message. But press the space bar and it launches Dino Run, where you can jump through a 2D desert for infinity if you so wish.

4) A two-way mirror test

5) How muscles work

6) How keys work

Look at this mechanical wizardry.

7) How animals breathe

8) What snake venom does to blood

If you're squeamish about blood, especially solid blood, then LOOK AWAY NOW.

9) How a gun works

When you pull the trigger on a handgun, the hammer snaps forward and a pin strikes the primer. This creates a spark, which ignites the gunpowder, and the explosion propels the bullet out of the gun.

In a semi-automatic pistol the extractor then grabs hold of the rim and ejects the empty casing from the gun to make room for the next round.

10) What a root canal is

Root canal treatment is used to treat infection at the centre of a tooth, caused by bacteria that live in the mouth and invade the tooth.

To treat the infection in the root canal, the bacteria need to be removed.

This can be done by either removing the tooth (extraction) or attempting to save it by removing the bacteria from the root canal system (root canal treatment).

After the bacteria have been removed, the root canal will be filled and the tooth sealed with a filling or crown. In most cases, the inflamed tissue at the end of the tooth will heal naturally.

11) How password complexity increases security

Passwords are crucial. They're the first line of defence against unauthorised access to your computer.

This is why you should make them complex:

12) Sleep on the opposite side of a blocked nose

Received wisdom says your stuff nose will clear in a few minutes. Glorious freedom.

HT this Quora thread

More:There is seaweed that tastes like bacon, and it's good for you