It does not seem, however, that organic chemists were much worried about barriers to rotation in organic molecules in general at that time because there was no technique available to demonstrate the phenomenon experimentally.
Derek Harold Richard Barton

It has long been known for sure that the sight of tasty food makes a hungry man's mouth water; also lack of appetite has always been regarded as an undesirable phenomenon, from which one might conclude that appetite is essentially linked with the process of digestion.
Ivan Pavlov

It is a common phenomenon that just the prettiest girls find it so difficult to get a man.
Heinrich Heine

It seems to me that for Darwin the pulsing of evolutionary rates was a strictly vertical phenomenon.
Ernst Mayr

It's a phenomenon that we don't really understand.
Russell Johnson

It's hard to make a cultural phenomenon every time.
John Travolta

Leadership has become a heavy industry. Concern and interest about leadership development is no longer an American phenomenon. It is truly global. Though I will probably be in less demand, I wanted to move on.
Warren Bennis

Melancholy has ceased to be an individual phenomenon, an exception. It has become the class privilege of the wage earner, a mass state of mind that finds its cause wherever life is governed by production quotas.
Gunther Grass

Men killing other men really is an extraordinary phenomenon. Why does it happen? And how long has it gone on? And have the motives changed?
John Keegan

Modern technology has become a total phenomenon for civilization, the defining force of a new social order in which efficiency is no longer an option but a necessity imposed on all human activity.
Jacques Ellul

My admiration for the phenomenon of Alcoholics Anonymous is boundless.
Mercedes McCambridge

Nevertheless, as is a frequent occurrence in science, a general hypothesis was constructed from a few specific instances of a phenomenon.
Sidney Altman

No phenomenon can be isolated, but has repercussions through every aspect of our lives. We are learning that we are a fundamental part of nature's ecosystems.
Arthur Erickson

No phenomenon is a real phenomenon until it is an observed phenomenon.
John Archibald Wheeler

Nobody could have imagined the phenomenon that 'Star Trek' became. It's still almost impossible to imagine.
William Shatner

Not that I have any interest in saying goodbye to Rocky. I absolutely adore being involved and a part of something that is really a phenomenon.
Richard O'Brien

Of course the word chaos is used in rather a vague sense by a lot of writers, but in physics it means a particular phenomenon, namely that in a nonlinear system the outcome is often indefinitely, arbitrarily sensitive to tiny changes in the initial condition.
Murray Gell-Mann

One of my earliest memories... I knew three full verses of the Star Spangled Banner when I was seven or eight years old. And one of the nuns discovered this phenomenon and I was actually sent around from classroom to classroom to do the whole thing.
Dave Van Ronk

Part of our western outlook stems from the scientific attitude and its method of isolating the parts of a phenomenon in order to analyze them.
Arthur Erickson

Pure phenomenology claims to be the science of pure phenomena. This concept of the phenomenon, which was developed under various names as early as the eighteenth century without being clarified, is what we shall have to deal with first of all.
Edmund Husserl