You can tell a hard-boiled egg
from a raw egg, just by giving it a spin,
because the fluid inside this sloshes around
and it really dampens it. But, when boiling eggs,
how do you tell if the eggs in here are done?
Now, you could just know how long the eggs take
to be done, and time it. But, that’s just too easy, and
you got to keep track of time. I could try to probe
the temperature inside the egg but that has
some unfortunate consequences. So, I’ve come up with this
contraption where you can help the eggs up, and then
give it a spin, back and forth. And, this egg is still, kind of
raw, so it really dampens. Whereas if I put the hard
boiled egg in here, that just bobbles back
and forth a lot. To make this one,
I just took some house wiring, stripped the insulation
and bent it into shape and bent a spring in here. But, the main problem
with this one is I can’t really
distinguish a soft boiled egg from a hard boiled egg.
Cause on a soft boiled egg, only the yolk is still liquid
and that just doesn’t provide enough dampening, so I
want to build one that oscillates faster, which
might be able to detect soft boiled.
So, I’m starting with a whisk that came apart, for some
stainless steel wire and I’ll use one of these
barrier strip connectors and a stiffer spring. So, either I need a tighter
grip on the egg, or I need a spring that’s
a bit looser. It’s really important that the
coils of the spring don’t touch each other, cause
that will cause dampening. So, I need to stretch this
spring a little bit. Over-stretch it, in fact, so that the coils don’t
touch each other. It’s a little bit better. I think this one’s about right. except I dropped my egg
a few times. So, these eggs have got
maybe 2 minutes of boiling on them.
They don’t oscillate. So, still a ways to go. So, now it’s been
about 4 minutes. And, it oscillates
a little bit better. But, still nothing compared
to the hard boiled egg. A 6 minute egg and that’s oscillating
pretty good. Still not as much as
the hard boiled egg. 7 minute egg. And, it’s oscillating. Let’s see No, the hard boiled egg is still
going a little bit stronger But, let’s cut one open. And, let’s see.
Well, the yolk is getting firm, I guess this
level of stiffness is still hard to detect.
I quite like soft boiled eggs. I think this egg is now
indistinguishable from a hard boiled egg
at least as far as my gadget is concerned. Well, that is mostly
hard boiled. If I let that sit on the counter
for just a few more minutes, that would
completely set hard.