Coffee Cup Secrets (w/ Video)

Jul 07, 2010 By Mike Lucibella

Exactly how coffee and cream blend in that jolt of java an extra eye opener for researchers.

Physicists from Yale University in New Haven, Connecticut and from the University of Bath in the U.K. took a close look downward into their mugs to find out exactly how cream actually blends with the in a cup when stirred.

Using image tracking and infrared cameras, the researchers studied the swirl patterns formed when liquids of varying temperatures -- like cold milk and hot coffee -- are mixed together.

This video is not supported by your browser at this time.
Infrared Video Of Swirling Liquid Rings

Alternating rings of the hot and cold liquids briefly form in the center of the container before moving outward toward the rim of the cup. This is the result of the slightly different viscosities of the hot and cold liquids separating out. As the temperature evens out throughout the cup, the rings break down and the mix together.

Explore further: Used MRI magnets get a second chance at life in high-energy physics experiments

Related Stories

Scientists Make Temperature-Regulating Coffee Mug

Aug 25, 2009

(PhysOrg.com) -- A well-insulated mug may keep your coffee somewhat warm, but now scientists have designed a high-tech mug that can keep drinks hot or cold at the perfect temperature for up to half an hour. ...

Studies provide more support for health benefits of coffee

Mar 15, 2010

Multitudes of people worldwide begin each day with a cup of steaming hot coffee. Although it is sometimes referred to as "the devil's brew," coffee contains several nutrients (eg, calcium) as well as hundreds of potentially ...

Dutch chocolate ice cream recalled

Feb 21, 2008

The U.S. Food and Drug Administration announced the voluntary recall of Pierre's brand Dutch Chocolate Ice Cream due to a labeling error.

Coffee seen to protect against cirrhosis

Jun 13, 2006

A study by California's Kaiser Permanente Medical Care Program has found another benefit from coffee -- protection against alcoholic cirrhosis of the liver.

Recommended for you

SLAC gears up for dark matter hunt with LUX-ZEPLIN

May 21, 2015

Researchers have come a step closer to building one of the world's best dark matter detectors: The U.S. Department of Energy (DOE) recently signed off on the conceptual design of the proposed LUX-ZEPLIN (LZ) ...

First images of LHC collisions at 13 TeV

May 21, 2015

Last night, protons collided in the Large Hadron Collider (LHC) at the record-breaking energy of 13 TeV for the first time. These test collisions were to set up systems that protect the machine and detectors ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.