Quiz question.

  • Hey Guest, For sale we have Hultafors Outdoor Knives with Firesteel PLEASE LOOK HERE for more information or use the Pay Now button in the sidebar

Bushwhacker

Banned
Jun 26, 2008
3,882
5
Dorset
Here's a nice little poser that I saw elsewhere, thought I'd post it here.

Walk along a beach at low tide when the sand is firm and wet. At each step the sand immediately around your foot dries out and turns white. Why?
The popular answer, that your weight “squeezes the water out,” is incorrect; sand doesn’t behave like a sponge. So what does cause this?
 

Goatboy

Full Member
Jan 31, 2005
14,956
13
Scotland
Is it because your weight displaces the sand under your foot, causing the surrounding sand to rise above the water level of the beach, so the water drains out?
 
Feb 15, 2011
3,860
1
Elsewhere
It's because the weight of the foot on the sand renders the sand aroud it less compact. The grains of sand seperate allowing any water present to infiltrate better, drawn by gravity, result....the sand dries quicker.

Anything else I can help you with .? :)
 
Last edited:

Shewie

Mod
Mod
Dec 15, 2005
24,259
21
45
Yorkshire
It's because the weight of the foot on the sand renders the sand aroud it less compact. The grains of sand seperate allowing any water present to infiltrate better, drawn by gravity, result....the sand drys quicker.

Anything else I can help you with .? :)

What he said, but typed much better than I could've done

4:20 into this vid
 

Bushwhacker

Banned
Jun 26, 2008
3,882
5
Dorset
It's because the weight of the foot on the sand renders the sand aroud it less compact. The grains of sand seperate allowing any water present to infiltrate better, drawn by gravity, result....the sand dries quicker.

Anything else I can help you with .? :)

A very concise answer indeed. Goatboy had right too.
 

Hultafors Outdoor knife for Sale

We have a a number of Hultafors Outdoor Knives with Firesteels for sale.

You can see more details here in this thread OUTDOOR KNIVES The price is £27 posted to the UK. Pay via the paypal button below.