Quotes About Physics

pressure acts in all three directions within a fluid while the stress in a solid is often a directional or one-dimensional affair.

The science of elasticity is about the interactions between forces and deflections in materials and structures.

the SI (System International) habit is to make the unit of force the Newton.

There is no democracy in physics. We can't say that some second-rate guy has as much right to opinion as Fermi.

Why is it that simple particles obeying simple rules will sometimes engage in the most astonishing, unpredictable behavior?

A hole in one is amazing when you think of the different universes this white mass of molecules has to pass through on its way to the hole.

Einstein enunciated what he called the Principle of Covariance: that laws of Nature should be expressed in a form that will look the same for all observers, no matter where they are located and no matter how they are moving.

The presence of the particles of matter , and their motion, determine the local topography of the space in which they sit.

Ever since the news of Hiroshima and Nagasaki had first reached him in California, Brecht had connected Galileo's caving-in before the Inquisition as the great and perhaps ineradicable moral blot on the history of physics and the developments in modern physics that led to the atomic and hydrogen bombs.

laws of physics as we know them break down somewhere between the time of the Big Bang and time zero.

The electrons not only know whether or not both holes are open, they know whether or not we are watching them, and they adjust their behaviour accordingly.

A black hole with the mass of the Sun would take 1066 years for this to occur, even if it never swallowed any outside matter along the way. A black hole with the mass of a galaxy will evaporate in 1099 years, and even a hole containing the mass of a supercluster of galaxies – the biggest ever likely to form – will be gone in 10117 years. That

People like us, who believe in physics, know that the distinction between past, present and future is only a stubbornly persistent illusion. Einstein

The Big Bang was not the beginning of the Universe.

spacetime is flat, that about 5 per cent of the mass of the Universe is in the form of baryons (including bright stars and gas and dust), some 27 per cent is in the form of cold dark matter, and 68 per cent is in the form of the lambda field, also known as dark energy.

Quantum physics is no longer an abstract theory for specialists. We must now absolutely include it in our education and also in our culture.

The prediction of nuclear winter is drawn not, of course, from any direct experience with the consequences of global nuclear war, but rather from an investigation of the governing physics.

If I want to understand the laws of physics I have to first believe what I read about physics. I have to have faith in what I read.

If it squirms, it's biology. If it stinks, it's chemistry. If it doesn't work, it's physics. And if you can't understand it, it's mathamatics.

You will certainly not doubt the necessity of studying astronomy and physics, if you are desirous of comprehending the relation between the world and Providence as it is in reality, and not according to imagination.

The person who wishes to attain human perfection should study logic first, next mathematics, then physics, and, lastly, metaphysics.

The mystery about ? is actually a double mystery. The first mystery – the origin of its numerical value ? ? 1/137 has been recognized and discussed for decades. The second mystery – the range of its domain – is generally unrecognized.

simple matter of physics, then, made the Central Arizona Project even worse, in an economic sense, than the Colorado River Storage Project. But politics demanded that it be built, and in the 1960s, Arizona had power.

Possible reality [is obtained] by slightly bending physical and chemical laws.