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BIS 402 : LIFE BEYOND EARTH
First Contact – Life Elsewhere March 15, 2018
Presented by Don Doerres
Scientific Software Engineer
ddoerres@mars.asu.edu
MY VIEWPOINT
 There’s gotta be somebody out there
 I’m still waiting…and watching
 Isaac Asimov’s Foundation doesn’t have
anybody out there
 All seven books of the Foundation put humans in
an almost empty universe -- for our own good, of
course
 I really prefer lots of friendly aliens – and these we
have, at least in imagination
THE FOUNDATION BOOKS
 Prelude to Foundation
 Forward the Foundation
 Foundation
 Foundation and Empire
 Second Foundation
 Foundation's Edge
 Foundation and Earth
ENGINEERS AND SCIENTISTS
 Engineers
 What and how questions
 Work for the material benefit of humanity
 Scientists
 Why questions
 Work to understand the world we live in
MAD SCIENTISTS
 Most mad scientists are really mad engineers
 Scientists and Engineers often swap roles
 Applied science
 Research engineer
IT REALLY IS A GOOD CARTOON
 See
http://cowbirdsinlove.com/46
THREE POINTS IN 20 MINUTES
 Earth’s first space man
 A different view of Drake’s Equation
 Outreach to aliens – Deep Space 1
EARTHS’S FIRST SPACE MAN
 Adam Strange, of course
© DC Comics
Fair Use for Educational
Purposes claimed
DRAKE’S EQUATION
N = R X FP X NE X FL X FI X FC X FL
 N = number of alien civilizations in (i.e., across) the Milky Way
 R = number of stars in (i.e., through) our galaxy
 fp = Fraction of stars with planets
 ne = number of planets where life as we know it can exist
 fl = % of those planets where life arises
 fi = % of those planets (fl) where intelligence develops
 fc = % of those societies that develop electromagnetic science
 fL = % of societies that emit electromagnetic signals into space
for a long time
Note: Dr. Drake is a living astronomer.
DRAKE’S EQUATION AS YOU HAVEN’T SEEN IT
 E = I * R
The generic relationship between a through and
an across variable where:
E is a generic across variable
I is a generic through variable
R is a constant of proportionality
CREDIT FOR THE NEXT PAGE
 https://ocw.mit.edu/terms/
 https://ocw.mit.edu/courses/mechanical-
engineering/2-004-dynamics-and-control-ii-
spring-2008/lecture-notes/lecture_13.pdf
 Thanks MIT!
ACROSS AND THROUGH
Pictures credited on previous page
THROUGH AND ACROSS VARIABLES
 Through variable has value transmitted
through an element
 Across variable value is determined by
measuring a difference of the values at two
extreme points of an element
 Through and Across variables are related by a
Constant of Proportionality
EXAMPLES FROM “REAL LIFE”
 Pressure equals density times height
 P = H * D
 Water pressure increases the deeper you go
 Force equals displacement times a constant
 F = K * X
 Amount of force required to stretch a spring is a constant
times the amount you stretch it
 Force equals mass times acceleration
 F = M * A
 Pulling “G’s” when you accelerate your car
A LITTLE MATH RAZAMATAZ
 N = R * fp * ne * fl * fi * fc * fl
 Let N = E, the across variable
 Let R = I the through variable
 Let the proportionality constant be
fp * ne * fl * fi * fc * fl = R
 Substituting:
 E = I * R
 The point is...just see what we can do with
simple math
SIMPLE MATH
 E=IR
 I=E/R
 R=E/I
 P = E*I or the product of the through and
across is “power” in physics.
 What might “Power” mean with respect to
inhabitable planets?
 Is “The Force” real?
FUN WITH FIGURES
 Given N:
 How many intelligent species have been in
television shows that are long running?
 How many species are intelligent?
 Just how many stars are there in the galaxy(ies)?
 If I know the through variable, then I can figure the
across variable by algebra.
A REAL OPPORTUNITY TO SEE THE FUTURE
 Usually we can only guess
 This is a rare occasion when you can see the
future from a point in the past
Ready?
OUTREACH
 Most spacecraft carry a greeting from earth
 Consider the gold record on Voyager I and II
Fair Use for Educational
Purposes claimed
 All of the infrared spectrometers from the ASU SESE
carry a plaque with the signatures of everyone on the
project
THE DEEP SPACE 1 CD
 Certainly less publicized than the Voyager record
 The spacecraft actually carried three or four different
CD’s and DVD’s literally sewn into the thermal
blanketing.
 These were from various groups associated with the
project
Image courtesy NASA
THE DS1 CD
I was responsible for putting together a CD from
the prime spacecraft contractor, a company
called Spectrum Astro (later General Dynamics
C4, later General Dynamics IS, later Orbital
Sciences, later…)
MORE DS1 CD
 The DS1 contained comments from anyone on
the mission interested in making them
 Young people from Boys and Girls Clubs all over
the world were invited to convey in pictures and
words what they thought the future would bring.
 The pictures are 20 years old now.
WHAT CAN YOU DO WITH THE DS1 CD?
 First, get one: See links page!
 Then think:
 What was the vision of the future 20 years ago?
 Hundreds of young people shared their vision by
sending it into deep space.
 Have a look…
LINKS
 https://www.slideshare.net/dondoerres
 https://github.com/dondoerres/DS1_CD

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2018_03_15_life_on_otherworlds

  • 1. BIS 402 : LIFE BEYOND EARTH First Contact – Life Elsewhere March 15, 2018 Presented by Don Doerres Scientific Software Engineer ddoerres@mars.asu.edu
  • 2. MY VIEWPOINT  There’s gotta be somebody out there  I’m still waiting…and watching  Isaac Asimov’s Foundation doesn’t have anybody out there  All seven books of the Foundation put humans in an almost empty universe -- for our own good, of course  I really prefer lots of friendly aliens – and these we have, at least in imagination
  • 3. THE FOUNDATION BOOKS  Prelude to Foundation  Forward the Foundation  Foundation  Foundation and Empire  Second Foundation  Foundation's Edge  Foundation and Earth
  • 4. ENGINEERS AND SCIENTISTS  Engineers  What and how questions  Work for the material benefit of humanity  Scientists  Why questions  Work to understand the world we live in
  • 5. MAD SCIENTISTS  Most mad scientists are really mad engineers  Scientists and Engineers often swap roles  Applied science  Research engineer
  • 6. IT REALLY IS A GOOD CARTOON  See http://cowbirdsinlove.com/46
  • 7. THREE POINTS IN 20 MINUTES  Earth’s first space man  A different view of Drake’s Equation  Outreach to aliens – Deep Space 1
  • 8. EARTHS’S FIRST SPACE MAN  Adam Strange, of course © DC Comics Fair Use for Educational Purposes claimed
  • 9. DRAKE’S EQUATION N = R X FP X NE X FL X FI X FC X FL  N = number of alien civilizations in (i.e., across) the Milky Way  R = number of stars in (i.e., through) our galaxy  fp = Fraction of stars with planets  ne = number of planets where life as we know it can exist  fl = % of those planets where life arises  fi = % of those planets (fl) where intelligence develops  fc = % of those societies that develop electromagnetic science  fL = % of societies that emit electromagnetic signals into space for a long time Note: Dr. Drake is a living astronomer.
  • 10. DRAKE’S EQUATION AS YOU HAVEN’T SEEN IT  E = I * R The generic relationship between a through and an across variable where: E is a generic across variable I is a generic through variable R is a constant of proportionality
  • 11. CREDIT FOR THE NEXT PAGE  https://ocw.mit.edu/terms/  https://ocw.mit.edu/courses/mechanical- engineering/2-004-dynamics-and-control-ii- spring-2008/lecture-notes/lecture_13.pdf  Thanks MIT!
  • 12. ACROSS AND THROUGH Pictures credited on previous page
  • 13. THROUGH AND ACROSS VARIABLES  Through variable has value transmitted through an element  Across variable value is determined by measuring a difference of the values at two extreme points of an element  Through and Across variables are related by a Constant of Proportionality
  • 14. EXAMPLES FROM “REAL LIFE”  Pressure equals density times height  P = H * D  Water pressure increases the deeper you go  Force equals displacement times a constant  F = K * X  Amount of force required to stretch a spring is a constant times the amount you stretch it  Force equals mass times acceleration  F = M * A  Pulling “G’s” when you accelerate your car
  • 15. A LITTLE MATH RAZAMATAZ  N = R * fp * ne * fl * fi * fc * fl  Let N = E, the across variable  Let R = I the through variable  Let the proportionality constant be fp * ne * fl * fi * fc * fl = R  Substituting:  E = I * R  The point is...just see what we can do with simple math
  • 16. SIMPLE MATH  E=IR  I=E/R  R=E/I  P = E*I or the product of the through and across is “power” in physics.  What might “Power” mean with respect to inhabitable planets?  Is “The Force” real?
  • 17. FUN WITH FIGURES  Given N:  How many intelligent species have been in television shows that are long running?  How many species are intelligent?  Just how many stars are there in the galaxy(ies)?  If I know the through variable, then I can figure the across variable by algebra.
  • 18. A REAL OPPORTUNITY TO SEE THE FUTURE  Usually we can only guess  This is a rare occasion when you can see the future from a point in the past Ready?
  • 19. OUTREACH  Most spacecraft carry a greeting from earth  Consider the gold record on Voyager I and II Fair Use for Educational Purposes claimed  All of the infrared spectrometers from the ASU SESE carry a plaque with the signatures of everyone on the project
  • 20. THE DEEP SPACE 1 CD  Certainly less publicized than the Voyager record  The spacecraft actually carried three or four different CD’s and DVD’s literally sewn into the thermal blanketing.  These were from various groups associated with the project Image courtesy NASA
  • 21. THE DS1 CD I was responsible for putting together a CD from the prime spacecraft contractor, a company called Spectrum Astro (later General Dynamics C4, later General Dynamics IS, later Orbital Sciences, later…)
  • 22. MORE DS1 CD  The DS1 contained comments from anyone on the mission interested in making them  Young people from Boys and Girls Clubs all over the world were invited to convey in pictures and words what they thought the future would bring.  The pictures are 20 years old now.
  • 23. WHAT CAN YOU DO WITH THE DS1 CD?  First, get one: See links page!  Then think:  What was the vision of the future 20 years ago?  Hundreds of young people shared their vision by sending it into deep space.  Have a look…