When I stated this blog in 2014, my first
couple of posts introduced me, a retired electrical engineer, and the subject
matter I hoped to cover, which is the connection between physics and
consciousness and how it leads to solutions to nature’s greatest puzzles. Since
I’m not trained as a philosopher. It has taken me this long to realize that
some of the metaphysical concepts I covered in my third post are very close to Plato’s theory of forms or theory of ideas. I find that his approach is different from mine
but reaches some of the same conclusions, and it’s enlightening to look at the
subject from both viewpoints. That’s what I’ll try to show in this post, but
first I have to say that I think it’s pretty exciting to be exploring the same
ground that Plato did 2400 years ago, especially since we seem to agree in
important ways.
Physicists and philosophers are desperately searching for reality, but aren't getting any warmer. An engineer watches the action and offers comments and answers from his work, The Book of the Universe (view my profile and click on My Web Page).
Sunday, July 29, 2018
Wednesday, July 18, 2018
Physics Q&A #5. Why Is Gravity So Weak?
I spend a lot of time on this blog explaining a
physical spacetime model and the underlying metaphysics. In this series of
posts, each entry poses a physics question for the spacetime model, along with
the answer.
Physics Question #5. Why is gravity so weak? Gravity between spacetime points is actually quite strong, but
points where elementary fermions are located are gravitationally decoupled from
the overall spacetime by the ratio of the particle's mass to the Planck mass—22
orders of magnitude in the case of the electron. This makes gravity a very weak
force for matter.
Our spacetime model adopts a harmonic
oscillator model for a stationary electron. In this model, the underlying
point's creation time is modulated sinusoidally at frequency ω where, from
quantum mechanics, ω = mc2/Ñ. Thus, the wave function includes a phase difference between the
local time at a particle point and the global time of the universe, which is
the local time at every point that does not contain a particle. It is because
the particle is out of phase with spacetime as a whole for most of the time
that gravity is so weak for particles.