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I purge all that is evil, an...

I purge all that is evil, and keep all that is true. Unless you speak, I can delete what you said. My usefulness has faded with the use of a pen. I am usually made of rubber, yet I am not a toy. I am both pink, and white, but also blue, or green. Do not forget me, as I can be your best friend. What am I?

Correct answers: 47

The first user who solved this task is Djordje Timotijevic.

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I saw an Apple store get robbed

I saw an Apple store get robbed.

I was an iWitness

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Rosalyn S. Yalow

Born 19 Jul 1921; died 30 May 2011 at age 89. Rosalyn Sussman Yalow was an American biophysicist who shared (with Andrew V. Schally and Roger Guillemin) the 1977 Nobel Prize for Physiology or Medicine, making her the second woman to win the Nobel Prize in medicine, “for the development of radioimmuno assays (RIA) of peptide hormone.” RIA brought about a revolution in biological and medical research. With her coworkers, she applied RIA to study of the physiology of the peptide hormones insulin, ACTH, growth hormone, and also to throw light upon the pathogenesis of diseases caused by abnormal secretion of these hormones. This was pioneering work that opened diabetes research in new directions. She has been called the “Madame Curie of the Bronx..”«

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