Hi!
My daughter has been pondering on something mysterious and the adults around her hasn´t provided any satisfactory answers at all. So she wanted me to ask the internet.
When we dry fabrics in the dry-tumbler the duvet cover more often than not swallows parts of the accompanying clothes and sheets, forcing us to turn it inside out to get to them.
“It´s just going round, round and the water goes out so why does it eat everything?
(My suggestion of dry-tumbler gnomes was quickly and rudely rejected)
In: Physics
[removed]
[removed]
I remember an actual scientific modelling of why a bunch of strings being tossed around eventually end up forming knots.
The explanation (mathematically modelled) was that random movement has a bigger chance of causing the strings to move so that they form knots, than for an already formed knot to untie itself.
Probably the same thing, it’s a little bit more likely that something moves inside the duvet cover, and a little bit less likely that it moves out of it.
Duvet covers have a concave shape that traps clothes from falling out. As the dryer runs, other clothes get entangled into the blob of clothes, eventually forming a big blob. You can see a similar phenomenon of entanglement with a bedsheet too but the pocket shape of the cover is more effective.
You should reward your 5 year old for being inquisitive and follow it up with a practical lesson. You appear to have a curious child. Looking forward to seeing great things from her 🙂
Wtf is a Dry Tumbler?
[removed]
28 here. What’s a duvet?
[removed]
Latest Answers