Lee Smolin: University

Lee Smolin is American cosmologist. Explore interesting quotes on university.
Lee Smolin: 104   quotes 1   like

“Neither space nor time has any existence outside the system of evolving relationships that comprises the universe. Physicists refer to this feature of general relativity as background independence.”

Lee Smolin book Three Roads to Quantum Gravity

Three Roads to Quantum Gravity (2000)

Universe , Time

“Some of the effects predicted by the theory [of loop quantum gravity] appear to be in conflict with one of the principles of Einstein's special theory of relativity… that the speed of light is a universal constant. …Photons of higher energy travel slightly slower than low-energy photons. …the principle of [general] relativity is preserved but Einstein's special theory of relativity requires modification. …A photon can have an energy-dependent speed without violating the principle of [general] relativity!”

Lee Smolin

"Loop Quantum Gravity," The New Humanists: Science at the Edge (2003)

Travel , Light , Universe , Appearance

“The hypothesis underlying all approaches to the landscape is that there is a cosmological setting in which different regions or epochs of the universe can have different effective laws. This implies the existence of spacetime regions not directly observable… These regions must either be in the past of our big bang, or far enough away from us to be causally unrelated.”

Lee Smolin

"A perspective on the landscape problem" arXiv (Feb 15, 2012)

Law , Universe , Past

“If we believe that the task of physics is the discovery of a timeless mathematical equation that captures every aspect of the universe, then we believe that the truth about the universe lies outside the universe.”

Lee Smolin

Time Reborn: From the Crisis in Physics to the Future of the Universe (2013)

Truth , Mathematics , Universe

“The landscape problem represents a serious problem in the development of science. Its solution requires… the construction of speculative cosmological scenarios, which posit regions or epochs of our universe for which we presently have no observable evidence. Nonetheless we must insist on taking seriously only scenarios and hypotheses that make falsifiable or strongly verifiable predictions, otherwise people can just make stuff up and the distinction between science and mythology becomes porous. …there are already candidate solutions that make real, falsifiable predictions.”

Lee Smolin

"A perspective on the landscape problem" arXiv (Feb 15, 2012)

People , Problem , Universe , Science

“It is absurd in general relativity to speak of a universe in which nothing happens.”

Lee Smolin book Three Roads to Quantum Gravity

Three Roads to Quantum Gravity (2000)

Universe

“There is no fixed, eternal frame to the universe to define what may or may not exist.”

Lee Smolin book Three Roads to Quantum Gravity

Three Roads to Quantum Gravity (2000)

Universe

“We detect light and particles that have traveled billions of light years on their way across the universe to us. During the billions of years of travel, very small effects due to quantum gravity can be amplified to the point that we can detect them.”

Lee Smolin

"Loop Quantum Gravity," The New Humanists: Science at the Edge (2003)

Way , Travel , Light , Universe

“The relational picture of space and time has implications that are as radical as those of natural selection, not only for science but for our perspective on who we are and how we came to exist in this evolving universe of relations.”

Lee Smolin book Three Roads to Quantum Gravity

Three Roads to Quantum Gravity (2000)

Nature , Universe , Science , Time

“The first principle of cosmology must be 'There is nothing outside the universe'. This is not to exclude religion or mysticism… But if it is knowledge that we desire… we need to seek answers to questions about the things we can see… only things that exist in the universe.”

Lee Smolin book Three Roads to Quantum Gravity

Three Roads to Quantum Gravity (2000)

Religion , Question , Knowledge , Universe

“Having begun my life in science searching for the equation beyond time, I now believe that the deepest secret of the universe is that its essence rests in how it unfolds moment by moment in time.”

Lee Smolin

Time Reborn: From the Crisis in Physics to the Future of the Universe (2013)

Life , Secret , Search , Universe

“The geometry of space changes when things in the universe change their relationships to one another.”

Lee Smolin book Three Roads to Quantum Gravity

Three Roads to Quantum Gravity (2000)

Universe , Change