...................................................................................................................................................
What Is Light?Physics and the Bible
.
Spiritual realities are more permanent and more substantial than
the shadows they cast into our physical world. Jesus is likened to the rising
Day Star and called the "Sun of Righteousness" - symbols which
suggest to us that His true splendor is greater than that of any star or any
known source of light and power in our physical world. Revelation describes the
face of Jesus as shining like the sun in full strength. Light is a common
symbol in the Bible for truth as opposed to ignorance and error. It was Jesus
who declared, to the consternation of his enemies, "I am the light of the
world. He who follows Me shall not walk in darkness, but have the light of life"
- so, in some way there is a connection in Scripture between spiritual light
and life itself!
by Lambert
Dolphin
However, as wonderful as our eyesight is, we are able to see
only electromagnetic waves between 400 and 700 nanometers (4 to 7 x 10-9 m)
in wavelength.
Young Isaac Newton in 1666 used a prism to break visible white
light into the rainbow colors of the spectrum, giving impetus to the
development of what is now the vast science of optics.
Discovery of the wave nature of light soon led to the
realization that our universe is permeated with electromagnetic waves ranging
in wavelength over at least 16 orders of magnitude - from ultra low-frequency
radio waves, which are tens of kilometers in wavelength, to cosmic rays with
wave crests and troughs only a millionth of a millionth (10-12 )
meter apart.
Just in our century, science has quickly extended the range of
the eye for explorative purposes.
Many different kinds of electronic sensing instruments now tell
us vastly more about the cosmos than our eyes alone can tell us directly.
Light from the sun arrives at the top of the earth's atmosphere
at a power level of about one kilowatt per square meter.
It is this heat and light from a modest star (surface
temperature only 5500 degrees C), that all life processes on earth are
ultimately driven.
Without the sun's constant energy input, our planet would
quickly radiate away its latent heat and freeze us and everything else very
solid in short order.
Heat and light from the sun are obvious, but we are unaware of
cosmic rays penetrating our bodies at the rate of perhaps 10 per second.
Nor do we realize that radio and television signals from a
hundred stations fill our living rooms. Many of these "rays" pass
through our bodies unimpeded.
Light waves, radio waves, heat signals, X-rays, and the like,
are electromagnetic (EM) radiation - all forms of which can transmit energy and
carry useful information even across vast reaches of "empty" space.
The signal speed of EM waves ranges upwards to a maximum value
which is the current speed of light, ~3 x 108 meters/sec.
In this century has also come the realization that we can
equally well describe light and other EM radiation as if it were corpuscular in
nature.
EM radiation is a result of moving electrical charges
(currents), and all forms of EM radiation can be described mathematically as
consisting of streaming photons.
Each photon constituting a "particle" of light has an
energy equal to Planck's constant times the speed of light divided by the
wavelength.
(Photons are very small, yet the human eye is sufficiently
sensitive that we can sometimes detect even a single light photon with
dark-adapted eyes).
Whether one uses a wave model or a particle model for light is
largely a matter of convenience for the physicist.
The concept of "wave-particle duality" is well
established by experimental evidence and the excellent models of Quantum
Mechanics.
Gravitational forces seem to us to be powerful, because it is
gravity which holds us to the earth's surface and makes us work hard to lift
and move things.
But the force of gravity is actually some 42 orders of magnitude
weaker (10-42) than the electrical forces which generate light waves
and radio waves!
Because of this huge difference in energy levels, we actually
know little about gravity.
For instance, many scientists have tacitly assumed that gravity
signals, and the force of gravity between masses, are communicated
("mediated") back and forth by streams of photons traveling at the
velocity of light - some have assumed that gravity will be explained as arising
from some type of EM wave.
But as we saw in the March issue of Personal UPDATE,
it is now more probable that gravitational forces are communicated by particles
called gravitons, which are very much smaller than photons.
Furthermore, the speed of gravitons is apparently some ten
orders of magnitude higher than the current speed of light. This raises the
possibility of space travel throughout the entire known universe in very
reasonable time periods.
From energy considerations (in the universe considered as a
whole entity) it now appears that the speed of light initially had the same
high value as gravity still has, but the speed of light has decreased whereas
the speed of gravity has not.
[Ed. note: Many competent scientists disagree with the theory
that the speed of light has decreased.]
A great frontier lies before us now in better understanding
gravity. For example, we cannot as yet be certain whether the hypothesized
gravity waves are transverse in nature (as are EM waves), or compressional
(like sound waves).
Suffice it to say that energy and information can be transmitted
across the universe by means others than ordinary photons.
That is, energy and information transmission in the physical
world is probably not always electromagnetic in nature.
(And this is not taking into account how prayer and spiritual
forces travel between God, men and the angels - about which we know next to
nothing.)
On the First Day of creation week, having brought into existence
space, time and matter, the second creative act of God was (I believe) the
creation of light.
Light was spoken into existence by the Second Person of the
godhead, Jesus, the Logos or Word of God:
And God said, 'Let there be light' and there was light.
I like to think of this second event in God's work of creating
everything as the making of a vast energy source.
The Lord then incorporated potential and kinetic energy
reservoirs in many forms into His universe as He constructed things during the
six days of creation.
These energy endowments would allow the universe to function
indefinitely with built-in power supplies.
(Before The Fall I think this energy supply also included means
of replenishment of reserves to make up for dissipation and losses).
The statement "Let there be light" may
mean (in my opinion) "Let there be energy of all wavelengths and in all
forms."
I believe it was from these four working substances created on
Day One- (1) space, (2) time, (3) matter and (4) energy - that God constructed
(and filled) the universe we live in.
In His work as Creator, the Son of God was the "master
craftsman" of Proverbs 8.
The activity of creation week involved many separate actions by
all the Persons of the godhead, as can be seen by the numerous action verbs in
Chapter One which refer to God.
Many good people will probably not agree with my own
interpretation of the opening verses of Genesis - so I won't be dogmatic about
the model I have just suggested.
Dozens of books and hundreds of scholarly theological papers
have disputed exactly how to interpret these opening verses of Holy Writ and I
don't claim to have the final word by any means.
The important point is that light, as we know it and understand
it in the physical world, was created by God on the First Day of creation.
The Bible says that "God is Light" and this is
not the same as saying "Light is God."
If we claimed that the Light shining forth on Day One of
creation week was simply God Himself we would have major problems - because God
is a Spirit and He does not directly emit protons or waves!
The God of the Bible is separate from, and transcends, His
creation.
Because God is Light, a more profound problem appears when we
consider other passages in the Bible which speak figuratively of light, and of
spiritual light.
Writing to Timothy, Paul the Apostle tells that God, "alone
has immortality, [and that He] dwells in unapproachable light, whom no man has
seen or can see." (1 Timothy 6:16).
Moses, who enjoyed a very intimate relationship with God, on one
occasion asked God that He might see Him as he was:
“And Moses said, ‘Please, show me Your glory.’
“Then God said, I will make all My goodness pass before
you, and I will proclaim the name of the LORD before you. I will be gracious to
whom I will be gracious, and I will have compassion on whom I will have compassion.’
“But God said, ‘You cannot see My face; for no man shall
see Me, and live.’
“And the LORD said, ‘Here is a place by Me, and you shall
stand on the rock. So it shall be, while My glory passes by, that I will put
you in the cleft of the rock, and will cover you with My hand while I pass by.
Then I will take away My hand, and you shall see My back; but My face shall not
be seen.’" (Exodus 33:18-23)
The whole point about God's being Light is that the splendor and
radiance of His immediate presence is so intense it must be veiled in clouds of
thick darkness.
Otherwise mere mortals would be burned to a crisp if they came
into the unveiled presence of His effulgent power.
Jesus is likened to the rising Day Star and called by
Malachi the "Sun of Righteousness" - symbols which suggest to
us that His true splendor is greater than that of any star or any known source
of light and power in our physical world.
Revelation describes the face of Jesus as shining like the
sun in full strength (Revelation 1:16).
Light is a common symbol in the Bible for truth as opposed
to ignorance and error.
"Enlightenment" means true understanding and
comprehension in the inner man.
It was Jesus who
declared, to the consternation of his enemies, "I am the light of the
world. He who follows Me shall not walk in darkness, but have the light of
life." (John 8:12).
So, in some way there is a connection in Scripture between
spiritual light and life itself!
The New Testament furthermore insists that the man Christ
Jesus is the exact visible expression of God the invisible.
It is by knowing Jesus that we who once were "sons
of darkness" become "sons of light."
Unlike Moses we are invited to look full into the face of
Jesus:
“... we all, with
unveiled face, beholding as in a mirror the glory of the Lord, are being
transformed into the same image from glory to glory, all this comes from the
Lord who is the Spirit.” (2 Corinthians 3:18)
God, were His Light unveiled, would fill and flood the
entire universe with His presence to such a degree that there could be no
ordinary night time anywhere.
Therefore, the spiritual world where He dwells,
surrounding us on all sides, a world in which the material creation is
embedded, is not only more solid than our world, it is also brighter - it is
full of light in fact.
Living as we do at present in a world still relatively
dark, we await the coming of the Dawn.
Lambert Dolphin's Place
From time to time I write, and rewrite, short studies
based on my understanding of the Bible. These thoughts are not the last word on
a subject, but often just working papers that are incomplete or sketchy. You
are welcome to quote from, or use, these essays--but please reference the
source. Your email is most welcome. The Library is where most everything is
located.
Lambert Dolphin, Physicist Website
https://www.khouse.org/articles/1998/161/
No comments:
Post a Comment