Monday, January 30, 2012

why fingers wrinkle when wet?

The fingers that turned into a wrinkled when wet can be a form of adaptation so that we can hold more strongly in wet conditions. The hypothesis was stated Mark Changizi, an expert in evolutionary neurobiology 2AI Labs, in Boise, Idaho, United States.

The study results Changizi and colleagues, published in the journal Brain, Behavior, and Evolution is contrary to general belief that the finger becomes wrinkled as it absorbs water.

According Changizi, wrinkles on a wet finger serves as a furrow on the tires. Wrinkles form a channel as a flow of water when we press a fingertip on wet surfaces. This is what causes the fingers grip on wet surfaces become stronger.

Changizi and his team studied 28 pictures that wrinkly fingers because of the water. The team found similarities in the observed pattern of unconnected long canal which is a ramification of the above point the finger.

When we emphasize the finger, place the pressure from the fingertips to the back. In contrast to the side of the finger where the water can flow easily, the flat part of the finger-like plateau which is where water can stagnate.

Wrinkles are formed on the plains is because, "That's where the channel is formed to drain the water," said Changizi. He will test the hypothesis is to see if people are wrinkly fingers can grip better in wet conditions.

Chicken Without a Head

1. Mike, the Headless Chicken: (Living 18 months without a head)

 Mike (April 1945 - March 1947) the headless chicken is Wyandotte Rooster that can live for 18 months after its head cut off. After many people had thought him merely as a HOAX, the chicken was brought by the owner to the University of Utah in Salt Lake City to establish its authenticity.
On the day Monday, September 10, 1945, farmer Lloyd Olsen from Fruita, Colorado, was about to prepare dinner and ordered by his wife to find a chicken. That's when Olsen decapitated chickens aged 5 and a half months old named Mike. Olsen used ax escape from blood vessels of the neck, so that most of the vessels of the brain remains intact. Mike had entered in dozens of newspapers and magazines, including Time and Life Magazines. Olsen drew criticism from some quarters for keeping the headless chicken alive. In March 1947, at a motel in Phoenix, Mike suddenly choked and die in the middle of the night.