WEBVTT

1
00:00:00.120 --> 00:00:02.720
- Engineers at MIT recently
built a device called

2
00:00:02.720 --> 00:00:05.550
an Oreometer to test
how Oreo cookies split

3
00:00:05.550 --> 00:00:07.980
and how the creme filling
separates from the wafers.

4
00:00:07.980 --> 00:00:10.530
There are different ways to
eat an Oreo you might pull the

5
00:00:10.530 --> 00:00:14.070
two wafers apart, unscrew
the two sides of the cookie,

6
00:00:14.070 --> 00:00:16.170
or dunk it in milk and bite right into it.

7
00:00:16.170 --> 00:00:18.250
The researchers were studying rheometry,

8
00:00:18.250 --> 00:00:20.650
or the physics of fluids
and how they flow.

9
00:00:20.650 --> 00:00:23.598
They called this
particular study Oreology.

10
00:00:23.598 --> 00:00:26.910
Oreo creme is a soft solid
called a yield stress fluid

11
00:00:26.910 --> 00:00:30.320
a group that includes cookie
dough, concrete, and lava.

12
00:00:30.320 --> 00:00:33.420
We weren't able to build an
Oreometer at the Gizmodo office,

13
00:00:33.420 --> 00:00:35.570
but in this video you
can see a demonstration

14
00:00:35.570 --> 00:00:36.820
of how the machine works.

15
00:00:36.820 --> 00:00:39.400
The Oreo is placed between two clamps.

16
00:00:39.400 --> 00:00:42.340
Rubber bands on the clamps
adjust torque on the wafers,

17
00:00:42.340 --> 00:00:45.130
and as coins are added to
one side of the Oreometer,

18
00:00:45.130 --> 00:00:47.870
the clamp turns, separating the cookie.

19
00:00:47.870 --> 00:00:49.300
The team found that the clean-ness

20
00:00:49.300 --> 00:00:50.430
of the break didn't depend

21
00:00:50.430 --> 00:00:52.490
on how fast they rotated the wafers,

22
00:00:52.490 --> 00:00:53.970
how much creme there was,

23
00:00:53.970 --> 00:00:56.020
or what flavor of the cookie they used.

24
00:00:56.020 --> 00:00:58.700
It depends on how much adhesion
there is between the creme

25
00:00:58.700 --> 00:00:59.680
and the wafers.

26
00:00:59.680 --> 00:01:02.450
Researchers made the
Oreometer design open-source,

27
00:01:02.450 --> 00:01:05.260
so you build and run your
own experiments at home.

28
00:01:05.260 --> 00:01:08.950
And then taste the cookies,
for obvious science reasons.

29
00:01:08.950 --> 00:01:10.810
To learn more about this story and more,

30
00:01:10.810 --> 00:01:11.910
check out Gizmodo.com