For many of us, tying shoelaces is something we learned long ago. And yet, a surprising number of people do their shoelaces incorrectly! So how can you tell, and how do you fix it? Read on to find out!
You will need
- Shoes with laces
Are your shoelaces wonky like this?
Diagnosing the problem
- Tie your shoelaces in a bow.
- Look at your bow – do the loops go straight out to the sides and does the middle loop run down your foot? Or is everything on a slant?
- If it’s straight, you’re good! You know how to tie your shoelaces properly.
- If it’s diagonal, there’s a better way. Don’t worry, it’s not hard to fix!
Fixing the problem
Mirror the way you do the first step of the bow.
- There are two steps to tying a bow. First, there’s a simple over–under knot. Second, there’s a more complicated over–under with loops. To fix your bow, you only need to change one of these steps, and it’s easiest to change the first.
- Start tying your shoelaces like you normally do, but stop after the first over– Look at the knot you’ve made – does the left go over the right, or the right over the left?
- Untie the knot, and try to tie it again, only backwards. That is, if your knot had the right string over the left string, try putting the left over the right. Look at it again and check that you’ve done it differently.
- Now, finish your bow as normal.
You’ll get a straight bow, every time!
- Look at the middle look of your shoelace – is it diagonal, or does it run straight down your shoe?
Don’t worry about doubling up the bow – if you do your shoelaces properly, they shouldn’t untie themselves!
What’s happening?
Bows are probably the most commonly tied knots in the world. Millions of people tie their shoelaces in bows every single day. But it’s not surprising that many people miss-tie their laces. To understand why, it helps to look at some simpler knots.
A miss-tied bow is very similar to a granny knot. You can tie a granny knot by simply doing the first step of a bow twice. A granny knot is twisted and wonky, and it doesn’t hold well. To improve a granny knot, you can mirror the second knot – go right over left and then left over right. This is a reef knot, which is straight and much stronger.
So why is a granny knot wonky and a reef knot straight? It has to do with symmetry. A reef knot is very symmetrical, because the second part of the knot is a reflection of the first. In a granny knot, each half-knot twists slightly, making one big twist. In a reef knot, the second half twist counters the first, making the knot nice and straight.
If you’re after more maths activities for kids, subscribe to Double Helix magazine!
If you’re after more science activities for kids, subscribe to Double Helix magazine!
Similar posts
One response
-
I can tie my laces in a reef knot bow, then tie the loops of a bow in another reef knot – and they will still come undone when I walk through blackberries 🙂
(recently found a fairly good solution to that though … not sure why I didn’t think of it years ago … tie the first half of the bow as normal, then, with a lace in each hand, reach around each side of my ankle and start again at the beginning and tie a bow at the back of my leg … much harder for the prickles to grab and undo them there – lol)
This site uses Akismet to reduce spam. Learn how your comment data is processed.
By submitting this form, you give CSIRO permission to publish your comments on our websites. Please make sure the comments are your own. For more information please see our terms and conditions.
Newsletter
Sign up to our Double Helix newsletter
Stay in touch with new updates by signing up to our free newsletter
Advertisement
Leave a Reply