A Quote by Hannes Alfven
I have always believed that astrophysics should be the extrapolation of laboratory physics, that we must begin from the present universe and work our way backward to progressively more remote and uncertain epochs.
Related Quotes
A universe without purpose should neither depress us nor suggest that our lives are purposeless. Through an awe-inspiring cosmic history we find ourselves on this remote planet in a remote corner of the universe, endowed with intelligence and self-awareness. We should not despair, but should humbly rejoice in making the most of these gifts, and celebrate our brief moment in the sun.
I spent eighteen months as a graduate student in physics at Columbia University, waiting unhappily for an opportunity to work in a laboratory and wondering if I should continue in physics.
I'm a person who's very interested in science and the universe and quantum physics and astrophysics.
Students using astrophysical textbooks remain essentially ignorant of even the existence of plasma concepts, despite the fact that some of them have been known for half a century. The conclusion is that astrophysics is too important to be left in the hands of astrophysicists who have gotten their main knowledge from these textbooks. Earthbound and space telescope data must be treated by scientists who are familiar with laboratory and magnetospheric physics and circuit theory, and of course with modern plasma theory.
According to my views, aiming at quantitative investigations, that is at establishing relations between measurements of phenomena, should take first place in the experimental practice of physics. By measurement to knowledge [door meten tot weten] I should like to write as a motto above the entrance to every physics laboratory.
In its efforts to learn as much as possible about nature, modern physics has found that certain things can never be "known" with certainty. Much of our knowledge must always remain uncertain. The most we can know is in terms of probabilities.
More and more of out colleagues fail to understand our work because of the high specialization of research problems. We must not be discouraged if the products of our labor are not read or even known to exist. The joy of research must be found in doing since every other harvest is uncertain.
Here I had tried a straightforward extrapolation of technology, and found myself precipitated over an abyss. It's a problem we face every time we consider the creation of intelligences greater than our own. When this happens, human history will have reached a kind of singularity - a place where extrapolation breaks down and new models must be applied - and the world will pass beyond our understanding.
As we look out into the Universe and identify the many accidents of physics and astronomy that have worked together to our benefit, it almost seems as if the Universe must in some sense have known that we were coming.
Wheeler hopes that we can discover, within the context of physics, a principle that will enable the universe to come into existence "of its own accord." In his search for such a theory, he remarks: "No guiding principle would seem more powerful than the requirement that it should provide the universe with a way to come into being." Wheeler likened this 'self-causing' universe to a self-excited circuit in electronics.
Fundamental physics is like an art more or less. It's completely non-practical, and you can't use it for anything. But it's about the universe and how the world came into being. It's very remote from your daily life and mine, and yet it defines us as human beings.
It's a curious thing, this thing we call civilization...we think it is an affair of epochs, and nations. It's really an affair of individuals. One brother will be civilized and the other a barbarian...All civilization comes through literature now, especially in our country. A Greek got his civilization by talking and looking, and in some measure a Parisian may still do it. But we, who live remote from history and monuments, we must read or we must barbarise.
You must love your work, and not be always looking over the edge of it, wanting your play to begin. And the other is, you must not be ashamed of your work, and think it would be more honorable to you to be doing something else. You must have a pride in your own work and in learning to do it well.
The laws of physics and chemistry must be the same in a crucible as in the larger laboratory of Nature.
Deep, solemn optimism, it seems to me, should spring from this firm belief in the presence of God in the individual; not a remote, unapproachable governor of the universe, but a God who is very near every one of us, who is present not only in earth, sea and sky, but also in every pure and noble impulse of our hearts.
Our galaxy, the Milky Way, is one of 50 or 100 billion other galaxies in the universe. And with every step, every window that modern astrophysics has opened to our mind, the person who wants to feel like they're the center of everything ends up shrinking.
Related Authors
Austin O'Malley Quotes
American
Scientist
Carl Sagan Quotes
American
Scientist
Charles Darwin Quotes
English
Scientist
E. O. Wilson Quotes
American
Scientist
Georg C. Lichtenberg Quotes
German
Scientist
Isaac Asimov Quotes
American
Scientist
Jane Goodall Quotes
English
Scientist
Margaret Mead Quotes
American
Scientist
Nassim Nicholas Taleb Quotes
Lebanese
Scientist
Neil deGrasse Tyson Quotes
American
Scientist
Richard Dawkins Quotes
English
Scientist
Stephen Jay Gould Quotes
American
Scientist
Steven Pinker Quotes
Canadian
Scientist
Sylvia Earle Quotes
American
Scientist
Thomas Huxley Quotes
English
Scientist
W. Edwards Deming Quotes
American
Scientist