Saturday, July 2, 2016
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Blue objects feel warmer than red objects


Posted on Sunday, 6 July, 2014 | Comment icon 14 comments

We have preconceived ideas about the temperature of objects. Image Credit: sxc.hu
The counter-intuitive revelation is in complete contrast to traditional concepts of color association.
Normally we tend to associate red with heat and blue with cold as evidenced by the colors on hot and cold bathroom taps, but now a new study has turned this idea on its head by suggesting that our perceptions might actually be the other way around.

Researchers asked a group of volunteers to enter a dark room and place their hand on a temperature controlled plate that would be lit up in either red or blue.

Each participant was then asked to state whether each of the plates felt warm to the touch.

"I was very surprised," said researcher Hsin-Ni Ho. "I think as most people, our expectation is that red objects should feel warm and blue objects should feel cold. We get a totally reversed result."

Scientists believe that the reason for this is that we have a preconceived expectation that the red plate is going to be warmer than the blue one and that as a result the red plate needs to feel hotter than would otherwise be required for us to believe that the object is unusually hot.

"When you look at a red object you expect it to be warm. You have something already in your mind," said Ho. "The contrast between the expectation and actual temperature perception will influence what you feel."

Source: Scientific American | Comments (14)

Tags: Red, Blue


 
Recent comments on this story
Comment icon #5 Posted by MyOtherAccount on 6 July, 2014, 17:39
It is important research because it explains the disposition of the personality of Papa Smurf. (Well, actually all the Smurfs.)
Comment icon #6 Posted by Whisperer on 6 July, 2014, 18:24
"Researchers asked a group of volunteers to enter a dark room and place their hand on a temperature controlled plate that would be lit up in either red or blue." This is that part that got me fascinated because I would expect that since Blue is the wavelength reflected then red would be absorbed, giving the feeling of warmth...but since it was dark and the light was emitted, one has to wonder about the test and its results...
Comment icon #7 Posted by Ashyne on 7 July, 2014, 10:48
"Researchers asked a group of volunteers to enter a dark room and place their hand on a temperature controlled plate that would be lit up in either red or blue." This is that part that got me fascinated because I would expect that since Blue is the wavelength reflected then red would be absorbed, giving the feeling of warmth...but since it was dark and the light was emitted, one has to wonder about the test and its results... Most people here are confused about the article, but I already stated above, this research is not about which color is objectively warmer, it is about perception of the w... [More]
Comment icon #8 Posted by bLu3 de 3n3rgy on 7 July, 2014, 13:29
It seems pretty clear to me - they are testing expectation. They are testing to see if what is 'sensory perceived' under an "expectation", is accurate and close to reality or not. The test suggests that there is a mismatch between the sensory perception experienced for colour, when a expectation is used to trigger the sensory perception. This kind of study would have implications especially for the marketing and media world. This part here- When it comes to touch, what we feel might be strongly influenced by our expectations. “When you look at a red object you expect it to be warm. You have so... [More]
Comment icon #9 Posted by Rose-Red Howler on 7 July, 2014, 16:04
But anything showing up as a heat source is red, while blue means cold, and my oven switched on with hot rings shows red, not blue. Blue in a flame is the coolest part. Red and blue is to do with nature and how colours feel. Mental perception is based on the human senses. Yellow belongs to the red family and is also the colour of the sun.
Comment icon #10 Posted by :PsYKoTiC:BeHAvIoR: on 7 July, 2014, 16:26
Well, the argument depends on the application. A bunsen flame (with the collar air hole open), for example, will produce the hottest part close to the centre, just above the inner blue cone. Same thing with stars. Blue stars emit photons in the blue part of the spectrum. Blue photons have more energy than red photons. This means blue stars are generating more energy than red stars. Therefore, blue stars are hotter.
Comment icon #11 Posted by quiXilver on 7 July, 2014, 18:37
Most people here are confused about the article, but I already stated above, this research is not about which color is objectively warmer, it is about perception of the warmth of color. perception is reality it's odd and nominally normal simultaneously fun
Comment icon #12 Posted by JGirl on 7 July, 2014, 18:50
Red-colored surfaces needed to be about 0.5 degrees C hotter than blue ones before they felt at all warm to the touch. makes sense because your mind has the expectation of warmth, red needs to feel warmer to get your attention
Comment icon #13 Posted by RaymondEternal on 4 August, 2014, 13:21
And I thought red is warmer because it reflects light while blue is a slightly dark that it absorb more light...
Comment icon #14 Posted by PsiSeeker on 8 August, 2014, 19:22
Maybe to illustrate the point think of the scenario of lifting something that you expect to be a lot heavier than it actually is. You may perceive the same weight to be heavier when you don't expect it to be light. I think the key here is expectation adjusting perception and when the reality is off it skews the true nature of the object. There are certainly many more examples of expectation adjusting perceivable reality


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

5710466
259280
161010

 
Man creates a monster 200W 'laser bazooka'
7-1-2016
A madcap laser junkie has created a device that is 33 million times brighter than the surface of the sun.
Hole in the ozone layer is starting to heal
7-1-2016
A large hole in the Earth's protective ozone layer is finally starting to show signs of healing up.
Man swims in 1,500-gallon pool of Coca-Cola
6-30-2016
The remarkable stunt saw a man jump in to a pool filled with several thousand bottles of fizzy drink.
Disclosure advocate releases NORAD UFO files
6-30-2016
Victor Viggiani released the documents to the public during the Alien Cosmic Expo event on Saturday.
Featured Videos
Gallery icon 
Can supercomputers predict the future ?
Posted 7-1-2016 | 1 comment
What can you actually do with one hundred million billion calculations per second ?
 
Tim Peake back on Earth
Posted 6-29-2016 | 1 comment
An interview with astronaut Tim Peake about his time aboard the space station.
 
How MythBusters saved a woman's life
Posted 6-27-2016 | 3 comments
A woman whose car careened in to a lake was saved by an episode of MythBusters.
 
Real-life dire wolves
Posted 6-26-2016 | 4 comments
The huge wolves in Game of Thrones actually existed 300,000 years ago.
 
Teaching a gorilla to talk
Posted 6-25-2016 | 8 comments
A western lowland gorilla named Koko was taught from an early age to use sign language.
 
 View: More videos
Stories & Experiences
Three knocks in the night
6-28-2016 | Cedar City, Utah
 
Mr Button and laurel leaves
6-28-2016 | Unknown
 
Knocking on the door
6-28-2016 | Virginia, United States
 
Not in our jurisdiction
5-2-2016 | California, United States
 
Zippers and headlights
5-2-2016 | Raleigh, United States
 
Spinning, voiceless and breathless
5-2-2016 | Garland, Texas
 
Paralyzed
4-15-2016 | United States
 
The mysterious awakening
4-6-2016 | Los Angeles, California
 
Chocolate fairy? Really?
4-6-2016 | United Kingdom
 
Christmas Day haunting
4-6-2016 | London, UK
 

         More stories | Send us your story
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com © 2001-2015
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ