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: Detecting neutrinos, physicists look into the heart of the Sun

Provided by Inside Science News Service

4.1 /5 (7 votes)
add to favorites email to friend print save as pdf

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

Awakening the potential of plasma acceleration

18 hours ago

Civil engineering has begun for the new Proton Driven Plasma Wakefield Acceleration Experiment (AWAKE) at CERN. This proof-of-principle experiment will harness the power of wakefields generated by proton ...

Magnetic memories on the right track

18 hours ago

Computer hard drives store data by writing magnetic information onto their surfaces. In the future, magnetic effects may also be used to improve active memory in computers, potentially eliminating the need ...

When an exciton acts like a hole

20 hours ago

(Phys.org) —When is an electron hole like a quasiparticle (QP)? More specifically, what happens when a single electron hole is doped into a two-dimensional quantum antiferromagnet? Quasiparticle phenomena ...

User comments : 0