Spill not cup holder, Learning cup - anti gravity, incredible invention

Spill not cup holder, Learning cup - anti gravity, incredible invention DescriptionThe
physics
behind
this
coffee
holder
Unusual
is
that
the
liquid
does
not
spill
or
slam
into
the
cup,
and
the
cup
does
not
slip
on
the
when
carried,
even
when
rotated.
Why
not?
The
answer
is
that
the
loop
handle
(think
of
it
as
"chain")
is
very
flexible
and
cannot
provide
lateral
acceleration
on
the
cut
(because
it
does
not
has
no
"sheer
force"),
which
usually
results
in
liquid
coming
out
of
you
A
cup
emerges
Open
container
that
has
not
tipped
over.