Why Female Voice is sharper than that of Male? Fact File 4

Most of the sound generated by the human voice organ can be understood by the fellow humans. Actually a spoken word has more meaning than its explanation in the dictionary.We produce sound to express emotion, mental imagery, and language. Human voice is the most natural form of communication involved with environmental and situational reality. The formant frequencies of female are higher than that of the male. Voice tract of the female is shorter than that of the male which  causes sharp and clear voice in Females.The fundamental frequency of male voice lies in the range of 85 to 180 Hz while that of the female in the range of 150 to 300 Hz.

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Computer borne illness

Living in the modern digital world has benefits but along with the benefits of computer and mobile technology, we are also acquiring permanent health problems. Just like Air borne and Water borne diseases, computer and mobile phone related illness is also increasing.

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Galvanic Skin Response

Human skin offers resistance to electric current just like a resistor do in an electronic circuit. This transient change in the electrical conductivity of the skin followed by an arousal or oriented response is referred to as Galvanic skin response or GSR.

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Dental Curing Light

Dental curing light is used by the dentists for treating tooth cavity or filling root canal. The therapy involves the targeted action of high intensity light such as UV light to generate heat by concentrating light in the target area. To fill the cavity of tooth, adhesive chemicals such as polymer resin is used which is compressed in the cavity using the UV light. The compression makes the adhesive completely adheres to the inner surface of the tooth .With the introduction of LED curing light, comfortable dental therapy is now possible without generating heat.

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Hitting 2,00000

The inspiration behind this blog was a mail from WordPress on April 3, 2010 inviting me to start a blog in the 3 GB free space they are providing. After registering the domain, I was in dilemma about the content. After a long thought, I decided to free my electronics and biology contents sleeping well in my PC’s hard disk. The Academic Blog started growing slowly with … Continue reading Hitting 2,00000

Higgs boson. The God Particle

Good news! Scientists find the signs of the Missing particle the Higgs boson. Scientists of CERN Physics Research Centre, Geneva said that they had found the signs of Higgs boson, the elementary particle believed to have played an important role in the creation of universe after the Bing Bang occurred 14 billion years ago. The scientists at the CERN, claimed that they have tried to find the traces of the boson by smashing particles together in the Large Hadron Collider (LHC) at very high speed. The Higgs boson, named after the British Physicist Peter Higgs is believed to be the agent that gave mass and energy to all forms of matter. The term boson was taken from the name of the Indian physicist Sathyendranath Bose who worked with Albert Einstein to find out the concepts of particle physics. Higgs boson is often referred to as the “God particle” after the title of the book The God particle: If the universe is the Answer, What is the question, written by Leon Lederman.

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