If diffraction or interference phenomena were to be sought it was therefore necessary, in accordance with the basic principles of wave theory, to select for the test arrangement far smaller decisive dimensions than those employed in corresponding tests with visible light.
“They have to exist or not in their own right. I mean, with kids, you don't say, 'Which is your favourite,' or 'Which did you enjoy bringing up the best?'”
“The argument has been made in Congress that it is slippery slope if you allow therapeutic, what people people are calling therapeutic cloning, then you will get reproductive cloning.”