Thursday, 10 April 2014

 



HUMAN NOSE ABLE TO DETECT MORE THAN 1 TRILLION SCENTS
  
You know that thing on your face, smack between your eyes and mouth, the one you use to put air in and out of your meat suit, well turns out its kind of awesome in a trillion different ways literally as scientists confirmed that the human nose can detect more than a trillion different odors.
The norse god.....or is it nose god,get it?

There had been a long-standing claim that people could detect 10,000 different scents. That estimate was way too small. The new research suggests the real number is 10,000 times bigger. Scientists had thought the old number might need revising. The new study certainly supports that.



One trillion (1,000,000,000,000) is a huge number. Imagine every person on Earth gave off 100 distinct odors all his (or her) own. A single nose might be able to tell them all apart, based on the new numbers.
Our sense of smell may be even more refined than sight or sound. People can see several million different colors and hear roughly 340,000 tones.

You my friend are out of a job . . . .the next frontier in security,the human  nose

26 men and women to visited a lab and sniff. Then to sniff, and sniff, and sniff  some more. Each person completed 264 different smell tests. Each time, the volunteers sniffed a trio of vials. Two contained the same odor. A third differed. The participants had to identify which one wasn't like the others.

Most odors in the real world contain a mix of molecules, each of which contributes some part of the final scent. Here, the scientists combined a selection of molecules to create the different scents. They chose various amounts from a group of 128 different chemicals to concoct the odors.


Based on those results, the scientists estimate that the average person can identify about a trillion different smells, each made from 30 separate odor molecules. However, the most sensitive smeller in the group could probably identify many more, the scientists say. Someone with a relatively insensitive nose would probably detect only about 80 million, they now suspect. 
The study only used 128 odor molecules; far fewer than the number that exists in the real world. As such, one trillion is likely a low estimate for a sensitive nose. As they say, with great power comes great responsibility, go out and use your powers for good, Captain nasal?

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