Wacky Races for Wii

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video game review

New Video: Joey BadA$$ “’95 Til Infinity”

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WHAT IS ELECTROENCEPHALOGRAPHY (EEG) ?

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SHRIRAM SPARK

Source of EEG activity

The brain’s electrical charge is maintained by billions of neurons. Neurons are electrically charged (or “polarized”) by membrane transport proteins that pump ions across their membranes. Neurons are constantly exchanging ions with the extracellular milieu, for example to maintain resting potential and to propagate action potentials. Ions of similar charge repel each other, and when many ions are pushed out of many neurons at the same time, they can push their neighbours, who push their neighbours, and so on, in a wave. This process is known as volume conduction. When the wave of ions reaches the electrodes on the scalp, they can push or pull electrons on the metal on the electrodes. Since metal conducts the push and pull of electrons easily, the difference in push or pull voltages between any two electrodes can be measured by a voltmeter. Recording these voltages over time gives us the EEG.

The electric potential generated by single…

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Science fact of the day:

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Black beauty queens

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Forever Black Effusion

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The first woman to break the color barrier was Haiti’s black entrant Evelyn Miot upon gaining the right to compete for the semis during the 1962 Miss Universe Pageant on Floridian soil, what had seemed highly improbable days ago at a time when the black women were not allowed to participate in the beauty pageants in many states of America, Europe, Latin America, South Africa, Rhodesia (now known as Zimbabwe), and several islands on the Caribbean.

This amazing girl also was the first Haitian woman to enter the top 15 in the south Florida city of Miami Beach. In fact, she wrote one of the chapters most important in the history of Miss Universe, paving the way for a generation of black beauties. A year later, the Bahamian-born Sidney Poitier was the first African-American entertainer to win an Academy Award for his role in “Lilies of the Field”. SOURCE: Great…

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Science fact of the day:

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The Holy Grail

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holy grail

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