Very Interesting Junior – July 22, 2019

(WallPaper) #1

Now you know


TAKKIE


TROUBLES?


It’s annoying when
you’re busy with PE and
your shoelaces, despite the
double knot, come undone and
you have to stop and tie them or risk
an embarrassing trip. This clearly
bothered people enough to conduct a study at the University

of California on the best way
to tie them so that they
stay put.

WHAT’S THE
PROBLEM?
Shoelaces are subject to some pretty
strong forces. The repeated impact of our
shoes on the floor creates a force that is
up to seven times that of gravity and this
works to loosen the knot. The swinging
motion of our legs also creates a
swishing force that causes the
laces to slide apart.

WHAT DO THEY
SUGGEST?
That we use a ‘square’ knot. First, cross
the laces and thread one under the other
as normal, but then form a bow by
crossing and threading the laces in the
opposite direction. Problem solved... we
think! Give it a try and let us know at
[email protected] if it
worked for you!

Shoelaces can be frustrating. Re-learn how to tie them properly


Perhaps fed up with the
shoelace problem
themselves, Puma was
the first to introduce
shoes with Velcro
fasteners back in 1968.

DID YOU KNOW?
If you are more of a visual
person, head to YouTube to
see different ways to tie your
shoes with Professor Shoelace


The plastic (or metal) end of
a shoelace is called the
aglet. It was invented in
1790 by Harvey Kennedy. It
is used to stop the end of
the shoelace from fraying.
Free download pdf