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Raju Madiga

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Sir Bernard Katz

Born 26 Mar 1911.German-born British physiologist who elucidated how nerve cells transmit signals to muscles. Although it was known that neurons release acetylcholine at their terminal ends, Katz discovered in the early 1950s that the release of this neurotransmitter occurs continuously and spontaneously, although at low levels when neurons are at rest. Further, he found that acetylcholine is released in discrete packets, later called vesicles. In the late 1960s, Katz determined that the amount of acetylcholine in a vesicle was related to the electrical potential at the terminal of an axon (the long extension of a neuron that transmits the impulse). These studies won him a share (with Julius Axelrod and Ulf von Euler) of the 1970 Nobel Prize for Physiology or Medicine.

A man goes into a pet shop and...

A man goes into a pet shop and tells the owner that he wants to buy a pet that can do everything. The shop owner suggests a faithful dog.
The man replies, "Come on, a dog?"
The owner says, "How about a cat?"
The man replies, "No way! A cat certainly can't do everything. I want a pet that can do everything!"
The shop owner thinks for a minute, then says, "I've got it! A centipede!"
The man says, "A centipede? I can't imagine a centipede doing everything, but okay... I'll try a centipede."
He gets the centipede home and says to the centipede, "Clean the kitchen."
Thirty minutes later, he walks into the kitchen and... it's immaculate! All the dishes and silverware have been washed, dried, and put away; the counter-tops cleaned; the appliances sparkling; the floor waxed. He's absolutely amazed.
He says to the centipede, "Go clean the living room."
Twenty minutes later, he walks into the living room. The carpet has been vacuumed; the furniture cleaned and dusted; the pillows on the sofa plumped; plants watered. The man thinks to himself, "This is the most amazing thing I've ever seen. This really is a pet that can do everything!"
Next he says to the centipede, "Run down to the corner and get me a newspaper."
The centipede walks out the door. 10 minutes later...no centipede. 20 minutes later... no centipede. 30 minutes later...no centipede. By this point the man is wondering what's going on. So he goes to the front door, opens it... and there's the centipede sitting right outside.
The man says, "Hey!! I sent you down to the corner store 45 minutes ago to get me a newspaper. What's the matter?!"
The centipede says, "I'm goin'! I'm goin'! I'm just putting on my shoes!"
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