Title: What do Emc and Star Trek Have In Common explicating a theory using popular science
1What do Emc² and Star Trek Have In Common?
(explicating a theory using popular science)
Was this man the worlds first trekky?
2Contents
- 1 Outcomes of this presentation
- 2 What is reality?
- 3 The workings of the mind
- 4 Albert Einstein
- 5 About Star Trek
- 6 About Emc²
- 7 Contributions of others
- 8 Scientific meanings of Emc²
- 9 Practical examples
- 10 Space Travel and relativity
- 11 The Transporter
- 12 Star trek as a science show
- 13 Review of Outcomes
3Outcomes
- By the end of this presentation a student will be
able to - Experience how science fiction can trigger
advances in science fact - Recall Einsteins formula
- Define the components of the formula
- State the significance of the formula
- Describe the applications of the formula
4Background Concept 1 The Notion of Models
- What is reality? We have 5 limited senses and a
hard wired (set structured) brain to interpret
sensory inputs. How do we make sense of this
input? - Im sure all of you at some stage in your life
have purchased a plastic model kit to assemble
from the shows. It might be an aero plane, or a
battleship or a dolls house. Is it real? No! Does
modeling help explain the real item? Yes. It
helps explain shape, function performance etc.
but with extreme limitations. - All science models should be viewed in this way
also they are not real but help us better
understand reality.
5Background Concept 2 The Workings Of The Mind
- Our brain collects facts in a certain way and
then processes them to produce meaning from them.
Hence a differently structured brain or different
senses would see our universe totally
differently. Look at this example! - i cdnuolt blveiee taht I cluod aulaclty
uesdnatnrd waht I was rdanieg. - The phaonmneal pweor of the hmuan mnid, aoccdrnig
to a rscheearch at Cmabrigde Uinervtisy, it
dseno't mtaetr in waht oerdr the ltteres in a
wrod are, the olny iproamtnt tihng is taht the
frsit and lsat ltteer be in the rghit pclae. The
rset can be a taotl mses and you can sitll raed
it whotuit a pboerlm. Tihs is bcuseae the huamn
mnid deos not raed erve y lteter by istlef, but
the wrod as a wlohe. Azanmig huh? yaeh and I
awlyas tghuhot slpeling was ipmorantt!
6Albert Einstein
It was Einstein who stated genius is 99
perspiration and 1 inspiration. I assert this
mans major contribution was not his formulas but
rather he enabled mankind to open our eyes to
other possible versions of reality.
7Background Concept 3 About Star Trek
- For those of you who dont know, Star Trek was a
science-fiction television series, with 726
episodes and ten feature films in addition to
hundreds of novels, computer and video games, fan
stories and other works of fiction all set within
the same fictional universe created by Gene
Roddenberry in the mid-1960s. Fans of the show
are called trekkies. - The setting depicts a future in which vices as
sickness, racism, poverty, environmental
destructiveness, intolerance, warfare and
religious strife have been reduced between most
intelligences in the galaxy. The central
characters explore the galaxy, discovering new
worlds while helping to promote peace and
understanding. - Interestingly one tiny aspect of this brave new
world has transportation by groups of people by
spaceships at warp factors of the speed of
light while people move between spaceships and
planetary destinations via energy beams.
8Background Concept 4 About Emc²
- The formula first appeared in 1900 in a paper by
Henri Poincare in a treatese relating equivalent
mass to radiation. - According to Umberto Bartocci (University of
Perugia historian of mathematics), the equation
was first published two years earlier by Olinto
De Pretto, an industrialist from Italy, though
this is not generally regarded as true or
important by mainstream historians. Even if De
Pretto introduced the formula, it was Einstein
who connected it with the theory of relativity.
9Contributions of others
- Einstein was not the only one to have related
energy with mass, but he was the first to suggest
it as a part of a bigger theory, and even more,
to have deduced the formula from the premises of
this theory.
Einstein derived the formula based on his 1905
inquiry into the behavior of objects moving at
nearly the speed of light. The famous conclusion
he drew from this inquiry is that the mass of a
body is actually a measure of its energy content.
It is a little known piece of trivia that
Einstein originally wrote the equation in the
form dm L/c² (with an "L", instead of an "E",
representing energy, the E being utilised
elsewhere in the demonstration to represent
energy too).
10About Emc²
- This formula proposes that any body has a certain
amount of energy even if it is at rest, and
having no form of potential energy. - Conversely, a single package of light (called a
photon) travelling in empty space can be
considered to have an effective mass, m, due to
its kinetic energy, despite having no rest mass. - This formula also gives the quantitative relation
of energy and mass in any process when they
transform into each other.
11Practical examples
- A kilogram of mass completely converts into
- 89,875,517,873,681,764 joules or
- 24,965,421,632 kilowatt-hours or
- 21.48076431 megatons of TNT
- And approximately 0.0851900643 Quads (quadrillion
British thermal units) - In other words a tiny amount of matter is
sufficient to supply huge amounts of energy. - It is important to note that practical
conversions of mass to energy are seldom 100
percent efficient. One theoretically perfect
conversion would result from a collision of
matter and antimatter for most cases, by
products are produced instead of energy, and
therefore very little mass is actually converted.
12The space ships in Star Trek are all nuclear
powered.
13Space Travel and Relativity
- Given only two premises
- The speed of light in a vacuum is constant
(specifically, 299,792,458 meters per second). - The laws of physics are the same in any inertial
frame of reference. - Then the laws of physics observed by a
hypothetical observer traveling with a
relativistic particle must be the same as those
observed by an observer who is stationary in the
laboratory. - This is called special relativity.
- This supplemented by the Einstein assumption
(also from relativity) that space is not flat but
curved and therefore foldable means that travel
from one spot in space to another in space has
other alternatives to the conventional (folded
paper, circular paper etc.). - This has important applications to space travel
theory.
14Transport
- The famous line used by Captain Kirk was "Beam me
up, Scotty." (The real line is "Scotty, beam me
up", first spoken in Star Trek IV The Voyage
Home.) (The line "Beam me up, Scotty." was
actually used in Star Trek The Animated Series.)
- We don't have a clue about how to really build a
device like the transporter. One can surmise
however that matter is converted into energy
through acceleration of particles, transported at
the speed of light, and on being slowed
reconstitutes as matter afterward. It uses a beam
that is radiated from point A to point B where it
STOPS at just the right precise place -- even
passing through some barriers along the way --
and reconstructs the person it carries on the
spot. - All of the rematerialized atoms and molecules are
somehow in the precisely correct positions, with
the right temperatures and adhering together just
as if the transportee had not been
dematerialized. - Rematerializing, why doesn't everything fall to
pieces if a gust of wind or just normal gravity
disturb the reappearing atoms? Nothing in the
physics of today gives a hint about how that
might be possible. Arthur C. Clarke said, "Any
sufficiently advanced technology is
indistinguishable from magic." But we can't
assume every magical feat could be accomplished,
given sufficiently advanced technology.
15So, what are the features of Star Trek that a
person interested in science can enjoy. Here's a
list of the standard Star Trek features, roughly
in order of increasing scientific incredibility
as detailed in The Physics of Star Trek by
Lawrence M. Krauss (Basic Books, 1995)
- Features List
- The Ships Computer
- Matter-Antimatter Power Generation
- Impulse Engines
- Androids
- Alien Beings
- Sensors Tricorders
- Deflector Shields, Tractor Beams Artificial
Gravity - Subspace Communications
- Phasers
- Healing Rays
- Replicator
- Transporter
- Holodeck
- Universal Language Translator
- Warp Interstellar Drive
- Wormhole Interstellar Travel Time Travel
16Review Questions
- Recite Einsteins formula
- Define the components of the formula
- State the significance of the formula
- Describe two applications of the formula given
in this presentation. - Explain how science fiction can be used to
enhance knowledge and understanding.