Once, while I was talking to my astronomy class in Northern California,
         I 
asked them, "How many of you have run into Einstein's famous
         equation in which
what we call matter, mass, is set equal to energy?"
         Mrs. Banks said that she had
not run into that equation; so I asked her
         where she had gone to school. When
she told me that she had gone to Stanford
         University, and that she had done
graduate work there, and yet had never
         run into that famous equation, I said to
her, "Stanford owes you."
         Well, that was nearly thirty years ago.
 
Unfortunately Einstein's equation has been wrongly represented, world
wide, to mean that mass can be converted to energy. But that is wrong. If mass
could be converted to energy, as kinetic energy can be converted to gravitational
energy on the up-swing of a pendulum, then that equation would be E + m = K,
the sum of mass and energy is a constant.
 
But Einstein never interpreted his equation that way. He referred to it as,
"the equation in which energy is set equal to mass." And toward the end
         of his life
he wrote that matter had fallen out of the physics as a fundamental
         concept. He
may never have noticed the usual misinterpretation, because
         no one would have
written it down as E + m = K.
 
Probably this usual misinterpretation is
         largely responsible for the fact that
even our educated public is unaware
         that the Universe is made of energy, not
matter, and that it's wound
         up to some five hundred atom bombs per pound
against gravity by the dispersion
         of the particles through space, and to the same
five hundred atom bombs
         per pound against electricity because the particles are
so minute. I'll
         explain.
 
The
         gravitational field is condensational. It tends to bring things together,
and
         we wind things up against gravity by pushing things apart, like pushing a car
uphill. And things are wound up to some five hundred atom bombs per pound just
by being separated, in the gravitational field, from all the rest of the matter in the
observable Universe. We're only a little bit separated from the Earth, but we're a
great deal more separated from all the rest of the matter in the observable
Universe, and that's what winds us up to five hundred atom bombs per pound.
The energy of five hundred atomic bombs weighs only one pound on Earth. It's
that simple, but not easy to see.
 
Unlike the gravitational field, the electrical field is self dispersional. It tends
to push like charges apart. And we wind things up against electricity by pushing
like charges together. If we push two electrons together, they weigh more
together than they weighed apart because the energy of pushing them together
is still in there, and it's only energy that's heavy. And, it turns out, that the
         energy
required to make the charge of one electron as small as one electron
         is, is its
mass, because you'd be pushing negative charge toward negative
         charge, and
winding it up. Once again, it's that simple, but not easy
         to comprehend.
 
This
         sort of information was salted away in my early education more than
seventy
         years ago, but still, till now, it's difficult for me always to remember that
the rest of American public was not so lucky. And we live on a small planet where
the gravitational field is so tender that these energy relations are anything but
obvious. If we lived on a neutron star it would be a very different matter, and a
great deal easier to see. I'll explain.
 
A cubic inch of a neutron star weighs as much as a cubic mile of iron. And
if we lived on a neutron star where the mountains were only half an inch tall, and
where it would still take several generations to climb one, even if every speck of
our biological energy was used in the climb, then these energy relations would be
more obvious. It's more difficult to see them here on Earth.
 
If you dropped an old fashioned ten gram
         marshmallow to a neutron star,
the splash would be enough to vaporize
         a town. It would be a one gram splash.
And if you dropped it to a black
         hole with all the rest of the observable Universe
inside, it would be
         a ten gram splash. A ten gram marshmallow is the energy of
ten atomic
         bombs. I know, it doesn't look like that, and they'll sell you a whole
bag
         of them at the grocery store for a dollar nineteen. They have no idea what
they're
         doing. Almost no one sees this as it really is.
 
Because all this information was dumped on me so long ago I tend to see
the world this way, and I don't always remember that most people don't even
smell it. And it's for my failure to remember this that I apologize.
 
The energy of the explosion that blew Crater
         Lake in Oregon, long ago,
was only forty two pounds. It blew some thirty
         five cubic miles of rock to powder
and put it in the stratosphere at
         eighty thousand feet. That was forty two pounds.
The energy which the
         Sun releases, each second, is four and one half million
tons. It's been
         doing it for five billion years of seconds, and will continue for
another
         five. But when one of those iron core stars goes supernova (collapses to
a
         neutron star) in three quarters of one second it releases a hundred times as
much
         energy as the Sun releases in ten billion years. And that's only ten percent
of
         the mass of that star.
 
It's for not bearing all this in mind, when I talk to my friends, that I now
belatedly apologize.
 
The world is made of energy, and energy is the Underlying Existence
showing through.
 
John L. Dobson, February 10, 2006, Hollywood, California