A new study has found that humans may be able to distinguish up to 1 trillion different odors.
To find out how many odors we can distinguish, researchers asked 26 participants to put their noses to the test. During each experiment, study participants were asked to smell the contents of three vials that the scientists had mixed themselves using 128 different odor molecules. Two of the vials contained the same mixture, while one did not. The participants’ task was to identify the odd mixture. Then, using the statistics obtained during the tests, the researchers were able to determine that people can distinguish two odors when their components differ by more than half.
Based on the smells of the homeless in the NYC subway, I’m guessing we can perceive much more than 1 trillion.
Researchers believe that dogs became domesticated much earlier than originally thought.
The authors concluded that dog domestication most likely occurred in Ice Age Europe, between 18,800 and 32,100 years ago — much earlier, and much farther north, than previously believed.
“The initial interactions were probably at arm’s length, as these were large, aggressive carnivores,” said senior study author Robert Wayne, an evolutionary biology professor at UCLA. “Eventually though, wolves entered the human niche. … Maybe they even assisted humans in locating prey, or deterred other carnivores from interfering with the hunting activities of humans.”
Of course, there are those who disagree with the findings. What I want to know is, when did dogs become cute?
Researchers find that high-fat/high-sugar foods like Oreos may be as addictive as cocaine or morphine.
Researchers also looked in the nucleus accumbens, or the brain’s pleasure center, and measured how much c-Fos, a protein marker that signals brain neuron activation, was expressed. In simple terms, they were looking at how many cells were turned on in response to the drugs or Oreos.
The researchers saw that Oreos activated significantly more neurons than cocaine or morphine.
I had a pack of Oreos yesterday and was extremely disappointed when I opened the pack, so I can see how valid this research may be.
Researchers believe that chewing popcorn at the movies during the advertisements makes them ineffective.
The reason why adverts manage to imprint brand names on our brains is that our lips and the tongue automatically simulate the pronunciation of a new name when we first hear it. Every time we re-encounter the name, our mouth subconsciously practices its pronunciation.
However, according to the study published in the Journal of Consumer Psychology, this “inner speech” can be disturbed by chewing, rendering the repetition effect redundant.
For me, watching the movie pretty much makes me forget any advertisements and previews.
A man, who claimed he was not touching alcohol, was getting spontaneously drunk. Doctors found a yeast infection in his gut, which was creating ethanol.
So the team searched the man’s belongings for liquor and then isolated him in a hospital room for 24 hours. Throughout the day, he ate carbohydrate-rich foods, and the doctors periodically checked his blood for alcohol. At one point, it rose 0.12 percent.
I’ve heard of doctor’s transplanting gut fauna to treat ailments and assist in weight loss, but this may accelerate that practice.
A study by Nikelodeon UK has found that men don’t mature until they are about 43:
A whopping 46 per cent of women said they’ve been a relationship where they felt more like a mother than a partner.
On the home front, women were twice as likely as men to feel that they were the “grown up” one in their relationship, and three out of 10 women have ended a relationship with a partner due to his perceived immaturity.
They didn’t actually need to do a study to find that out, everyone knows that men are immature!
I have about 3 years till maturity, so here’s how I compare to their top 30 list:
7 out of 30 sounds pretty high on the maturity meter to me.
Joshua Katz, a Ph. D student in statistics at North Carolina State University, published visualizations of the regional dialect variation in the continental USA. Business Week whittled the 122 down to the 22 most interesting.
It’s amazing how wrong the rest of the country pronounces some words.
Archaeologists from the University of Leicester have used DNA evidence to identify remains believed to be Richard III “beyond reasonable doubt”.
Speaking at the press conference at the University of Leicester, Dr Turi King, project geneticist, said there had been concern DNA in the bones would be too degraded: “The question was could we get a sample of DNA to work with, and I am extremely pleased to tell you that we could.”
She added: “There is a DNA match between the maternal DNA of the descendants of the family of Richard III and the skeletal remains we found at the Greyfriars dig.
“In short, the DNA evidence points to these being the remains of Richard III.”
Researchers may have figured out how homing pigeons get back home.
In 1969, a Cornell biology professor gave a talk to geologists at the school about the mystery of the lost homing pigeons. If the pigeons were taken to almost any locations, they headed straight home with amazing accuracy. But at one location, called Jersey Hill, the pigeons got completely lost, with each taking off in a random direction. At two other locations, the birds consistently headed in the same wrong direction. On a few trips, the birds would miraculously make it home, but then get lost the next day. [ The 10 Weirdest Animal Discoveries ]
United States Geological Survey geologist John Hagstrum heard the talk, and the question nagged at him for years. In the 1990s, he discovered that birds in European pigeon races were going astray on clear-weather days, when the Concord, the supersonic plane, was in the area. That led him to wonder whether the sonic boom from the Concorde plane disrupted pigeon navigation by interfering with the sound waves.
Not a big fan of pigeons.
The BBC investigates how many LEGO bricks would need to be stacked on top of each other to cause the bottom brick to fail.
And the load on top of the brick gets larger and larger. We reach 3,500 newtons (N) of force – the equivalent of having 350kg (770lbs) sitting on top of the brick – more than a third of a tonne.The force climbs on, above 4,000N. And then…
Well, not much. There is no big bang. The brick just kind of melts.
It looks like a small square of warm camembert.
Someone (I’m looking at you Richard Branson) needs to build a LEGO tower to prove/disprove the findings.