# Proof The Earth Is Spherical

• 57 Replies
• 8992 Views

#### Moonlapse

• 97
##### Proof The Earth Is Spherical
« on: May 16, 2008, 09:54:12 PM »
http://www.physlink.com/education/askexperts/ae535.cfm

I win.

GTFO.

Quote from: Non Idiots
There are a multitude of methods in which any one can prove that the earth is a sphere. These are the most common.

You can launch a rocket to a high altitude and take pictures of the earth (which various government agencies and private groups have already done thousands of times in the past), but that isn't the most practical way. Pictures and videos taken by orbiting satellites and space stations are certainly the most definitive proof that the earth is a sphere.

But if you're not convinced, read on...

You can also observe, with binoculars, ships slowly 'sinking' below the horizon as it sails farther and farther out to the ocean, then watch them come back. They certainly didn't fall off the edge of the earth! You can also sail or fly around the world.

The Greeks discovered that the earth is round by observing lunar eclipses (i.e. when the earth blocks the sun from the moon, casting its round shadow on the moon's surface).

Another method is simultaneously measuring the length of the shadows cast by identical poles perpendicular to a flat surface that is tangential to the earth's radius at various, distant locations. If indeed the earth is round, then the shadows should all vary in length from one distant location to another, which means that the angle at which the parallel rays of sunlight struck each pole varied from one location to another. (recall the alternate-angles theorem from Geometry class) If the earth is flat, then the lengths of all the shadows should be identical when measured simultaneously, since all rays of sunlight that strike the earth are parallel. However, they are not identical, but in fact, varies in such a way that the angles indicate a spherical surface. (This was one of the earliest methods to determine the radius of the earth)

Also, keep in mind the 24 hour time zones. When it is noon in Hawaii, it is approximately midnight in the Middle East and vice versa. How can it be noon and midnight simultaneously? It is certainly impossible with a flat earth and a sun millions of times more massive.

If I were a billionaire and physically fit, then proving to you the earth is round would be no problem. I can just take you with me on the space shuttle and we'll watch with our own eyes the earth from the orbiting International Space Station.

I have heard from astronauts that there is no experience comparable as watching the earth from above.
« Last Edit: May 16, 2008, 09:56:59 PM by Moonlapse »

#### narcberry

• 5119
• Reason > RET
##### Re: Proof The Earth Is Spherical
« Reply #1 on: May 16, 2008, 09:57:31 PM »
The earth is flat.

#### Moonlapse

• 97
##### Re: Proof The Earth Is Spherical
« Reply #2 on: May 16, 2008, 10:02:54 PM »

#### Tom Bishop

• 16629
##### Re: Proof The Earth Is Spherical
« Reply #3 on: May 16, 2008, 10:05:07 PM »
The sinking ship effect is actually a proof for a Flat Earth, since it has been found that a half sunken ship is a perspective effect which can be restored with the aid of a sufficiently powered telescope. There are many first hand accounts of this in the Flat Earth Literature linked in my signature.

The Lunar Eclipse is not a proof for a Round Earth because there is no evidence that the shadow which manifests upon the moon during a lunar eclipse originates from the earth at all. That shadow which appears on the moon could come from any celestial body intersecting the light between the sun and moon.

The shadow experiment works on a Flat Earth since the sun is close to the earth and its light is vertical overhead and horizontal at its setting. This will cast shadows of different lengths depending on the position of the sun. We can accurately calculate the sun's true distance of 3,000 miles above the surface of the earth through this method.
« Last Edit: May 16, 2008, 10:08:27 PM by Tom Bishop »

#### Moonlapse

• 97
##### Re: Proof The Earth Is Spherical
« Reply #4 on: May 16, 2008, 10:08:32 PM »
Wrong.

You're an idiot if you believe that what you're saying is fact.

SHOW TITS OR LEAVE.

#### Tom Bishop

• 16629
##### Re: Proof The Earth Is Spherical
« Reply #5 on: May 16, 2008, 10:14:18 PM »
Which part do you disagree with?

#### Moonlapse

• 97
##### Re: Proof The Earth Is Spherical
« Reply #6 on: May 16, 2008, 10:23:07 PM »
Which part do you disagree with?

That the earth is flat.  You cannot prove it.  IT HAS BEEN PROVEN BY NASA OR ANY OTHER NATION WHO HAS A SATELLITE IN SPACE THAT THE EARTH IS INDEED ROUND.

But your argument to NASA is that NASA is a conspiracy and lies.

No.

Flat Earth Society is a cult.  Fact.

#### Tom Bishop

• 16629
##### Re: Proof The Earth Is Spherical
« Reply #7 on: May 16, 2008, 10:27:04 PM »
Quote
That the earth is flat.  You cannot prove it

Rowbotham's experiments have been conducted many times in the 150 year history of the Flat Earth Society. Just check out the link in my signature. I can count at least a dozen times his experiments have been verified off the top of my head. A woman named Lady Bount was among the first to provided photographic evidence for a Flat Earth:

"The Old Bedford Level was the scene of further experiments over the years, until in 1904, photography was used to prove that the earth is flat. Lady Blount, a staunch believer in the zetetic method hired a photographer, Mr Cifton of Dallmeyer's who arrived at the Bedford Level with the firm's latest Photo-Telescopic camera. The apparatus was set up at one end of the clear six-mile length, while at the other end Lady Blount and some scientific gentlemen hung a large, white calico sheet over the Bedford bridge so that the bottom of it was near the water. Mr Clifton, lying down near Welney bridge with his camera lens two feet above the water level, observed by telescope the hanging of the sheet, and found that he could see the whole of it down to the bottom. This surprised him, for he was an orthodox globularist and round-earth theory said that over a distance of six miles the bottom of the sheet should bemore than 20 feet below his line of sight. His photograph showed not only the entire sheet but its reflection in the water below. That was certified in his report to Lady Blount, which concluded: "I should not like to abandon the globular theory off-hand, but, as far as this particular test is concerned, I am prepared to maintain that (unless rays of light will travel in a curved path) these six miles of water present a level surface."
« Last Edit: May 16, 2008, 10:29:00 PM by Tom Bishop »

#### Ski

• 6947
• Homines, dum docent, dispenguin.
##### Re: Proof The Earth Is Spherical
« Reply #8 on: May 16, 2008, 10:29:58 PM »
Flat Earth Society is a cult.  Fact.

What a man does with chickens under a full moon is only his business. I'll pray for you, because I can tell you're deeply disturbed that everything you've been taught has been wrong. If it makes you feel better, even I have moments of doubt occasionally, simply because of the amount of garbage "science" thrown at us day after day. I think once you come to terms with the reality of the disc earth, you'll be much more comfortable.
"Never think you can turn over any old falsehood without a terrible squirming of the horrid little population that dwells under it." -O.W. Holmes "Truth forever on the scaffold, Wrong forever on the throne.."

#### Fikealox

• 415
##### Re: Proof The Earth Is Spherical
« Reply #9 on: May 16, 2008, 10:55:27 PM »
Lady Bount[/url] was among the first to provided photographic evidence for a Flat Earth: [blah blah blah]

So now we're not accepting photographic evidence, but we're accepting written testimonials about photographic evidence. Haha.

#### Moonlapse

• 97
##### Re: Proof The Earth Is Spherical
« Reply #10 on: May 16, 2008, 11:01:55 PM »
Of course the water is level you idiots!

Gravity pulls on everything with the same amount of force, so why the hell wouldn't it be level?!

You guys are idiots.

Those are whack job experiments performed by pseudo scientists.

Go drink some punch.

http://www.straightdope.com/classics/a2_087.html

Quote from: Skeptic Flat Earth Retard
Dear Cecil:

I have utter and absolute trust that the Earth is a sphere. And yet I have never had any personal experience that would convince me of this. I have accepted it as a matter of faith. As someone said, "Common sense is what tells us that the world is flat." For all I know from personal experience, the world might be shaped like a frisbee, which is round and has a curved surface, but is not a sphere. Perhaps Magellan, in circumnavigating the Earth, sailed in a circle around the North Pole in the middle of the frisbee to get back to his starting point. Taking the word of the astronauts is like taking the word of somebody about his religious experiences--interesting but not convincing.

My unfounded albeit profound faith that the world is a sphere is matched only by my faith that you can come up with some proof I can personally experience to prove that our planet is indeed an orb. --Allan H., Topanga, California

Quote from: Not An Idiot Cultist
Cecil replies:

I know you mean this question to seem delightfully impertinent, Allan, but you're about 30 years too late. There are, after all, innumerable photographs of the earth taken from space which reveal it to be spherical. Assuming you are not about to join the Flat Earth Society in proclaiming these a fake, I gather your complaint is that looking at a photo doesn't qualify as "personal experience." Big deal. I've never personally experienced Disney World, either. Most of what we know about anything depends on taking somebody else's word for it.

That said, there are a few home-demonstration-type indications--not proofs--that the earth is a ball. We'll start with ones you've already thought of:

(1) Departing boats gradually sink below the horizon, as do buildings on the shore from the viewpoint of the sailors. Admittedly this only proves the earth is round right where you are--the frisbee hypothesis.

(2) "The sphericity of the earth is proved by the evidence of ... lunar eclipses," Aristotle says. "For whereas in the monthly phases of the moon the segments are of all sorts--straight, gibbous [convex], crescent--in eclipses the dividing line is always rounded. Consequently, if the eclipse is due to the interposition of the earth, the rounded line results from its spherical shape" Of course a frisbee, properly angled, would make a round shadow too. But if the frisbee rotated while the eclipse was in progress, the curvature of its shadow would change. The earth's does not.

(3) The constellations shift relative to the horizon as you move north and south around the globe, something that could only happen if you were standing on a sphere. (You may have to draw a few diagrams to convince yourself of this.) Given sufficient world travel combined with careful observation on your part, the frisbee hypothesis becomes well-nigh insupportable. I suppose this doesn't qualify as a home experiment, but I never said science would be easy.

--CECIL ADAMS
« Last Edit: May 16, 2008, 11:04:43 PM by Moonlapse »

#### TheEngineer

• 15487
• GPS does not require satellites.
##### Re: Proof The Earth Is Spherical
« Reply #11 on: May 16, 2008, 11:08:10 PM »
But gravity as a force does not exist...

"I haven't been wrong since 1961, when I thought I made a mistake."
-- Bob Hudson

#### Moonlapse

• 97
##### Re: Proof The Earth Is Spherical
« Reply #12 on: May 16, 2008, 11:11:48 PM »
http://www.lhup.edu/~dsimanek/flat/flateart.htm

But gravity as a force does not exist...

We know it's there.  Go fall off the end of the Earth and you'll see it in action.

OH WAIT YOU CAN'T BECAUSE IT'S A SPHERE LULZ!
« Last Edit: May 16, 2008, 11:16:00 PM by Moonlapse »

#### Moonlapse

• 97
##### Re: Proof The Earth Is Spherical
« Reply #13 on: May 16, 2008, 11:21:07 PM »
Lol, oh haha.  Jokes on me.  You guys don't really believe the earth is flat.  Just luring folks like me in here to blind side me with stupidity and make me think there are really idiots like that out there.

Quote
Q: "Why has no-one taken a photo of the Earth that proves it is flat?"

A: The government prevents people from getting close enough to the Ice Wall to take a picture.

Q: "How did NASA create these images with the computer technology available at the time?"

A: Since NASA did not send rockets into space, they instead spent the money on developing advanced computers and imaging software instead

I lol'd.  Thats where I realized this is just a joke site.  Lol that be a bully joke.

#### Ski

• 6947
• Homines, dum docent, dispenguin.
##### Re: Proof The Earth Is Spherical
« Reply #14 on: May 16, 2008, 11:22:34 PM »
to blind side me with stupidity

Irony...
"Never think you can turn over any old falsehood without a terrible squirming of the horrid little population that dwells under it." -O.W. Holmes "Truth forever on the scaffold, Wrong forever on the throne.."

#### Moonlapse

• 97
##### Re: Proof The Earth Is Spherical
« Reply #15 on: May 16, 2008, 11:24:04 PM »
to blind side me with stupidity

Irony...

Quote
Q: "What's underneath the Earth?" aka "What's on the bottom?" aka "What's on the other side?"

A: This is unknown. Some believe it to be just rocks, others believe the Earth rests on the back of four elephants and a turtle.

Oh snap... I am now sold.

I am now burning all my globes and maps that I bought from the terrible government.

I can't believe I was so wrong.  Thanks for changing my life!

Also, where's the nearest Church of Scientology???

#### TheEngineer

• 15487
• GPS does not require satellites.
##### Re: Proof The Earth Is Spherical
« Reply #16 on: May 16, 2008, 11:24:19 PM »
We know it's there.
How do you 'know it is there"?

"I haven't been wrong since 1961, when I thought I made a mistake."
-- Bob Hudson

#### Moonlapse

• 97
##### Re: Proof The Earth Is Spherical
« Reply #17 on: May 16, 2008, 11:31:19 PM »
We know it's there.
How do you 'know it is there"?

You're right, I have no idea.  The government, THE WORLD'S GOVERNMENTS HAVE LIED TO US!

We should have a fund raiser to get all necessary equipment to head south and take photos of the icewall.  I can get my hands on weapons if necessary.  Who is ready to prove our belief?!?!!!??!!?!??!!?1111shifotnesfoaefoneneSHIFT PLUS FUCKING ONE

#### TheEngineer

• 15487
• GPS does not require satellites.
##### Re: Proof The Earth Is Spherical
« Reply #18 on: May 16, 2008, 11:38:03 PM »
You're right, I have no idea.  The government, THE WORLD'S GOVERNMENTS HAVE LIED TO US!
You have been lied to.  All this time you have been taught that gravity was a force.  I was pretty pissed off too, when I found out the truth.

"I haven't been wrong since 1961, when I thought I made a mistake."
-- Bob Hudson

#### Moonlapse

• 97
##### Re: Proof The Earth Is Spherical
« Reply #19 on: May 16, 2008, 11:39:35 PM »
You're right, I have no idea.  The government, THE WORLD'S GOVERNMENTS HAVE LIED TO US!
You have been lied to.  All this time you have been taught that gravity was a force.  I was pretty pissed off too, when I found out the truth.

How can the world be so stupid?!

It is so obvious now!

#### TheEngineer

• 15487
• GPS does not require satellites.
##### Re: Proof The Earth Is Spherical
« Reply #20 on: May 16, 2008, 11:50:18 PM »
It's not the world's fault.  It is just that gravity is so intuitive.

"I haven't been wrong since 1961, when I thought I made a mistake."
-- Bob Hudson

#### Tom Bishop

• 16629
##### Re: Proof The Earth Is Spherical
« Reply #21 on: May 17, 2008, 01:39:33 AM »
Quote
So now we're not accepting photographic evidence, but we're accepting written testimonials about photographic evidence. Haha.

You are free to accept whichever evidence you'd like. However, which type of evidence a better proof for the subject matter; A repeatedly preformed experiment that anyone can easily reproduce and conduct over a long body of water, or an experiment impossible to preform unless you are a government agency with a multi-billion dollar budget?

It boils down to a matter of first hand evidence which has been peer reviewed over and over again for the last 150 years versus third hand evidence which has undergone no peer review. No one has peer reviewed NASA's Apollo missions. So which type of evidence is more reliable?

Quote
Of course the water is level you idiots!

Gravity pulls on everything with the same amount of force, so why the hell wouldn't it be level?!

How can water be level on a globe?
« Last Edit: May 17, 2008, 02:00:35 AM by Tom Bishop »

#### Youre avin a larf

• 644
• Official RE Conspiracy Spokesman
##### Re: Proof The Earth Is Spherical
« Reply #22 on: May 17, 2008, 02:10:23 AM »

How can water be level on a globe?

Really, are you serious?

Having an good understanding of the position you are arguing against rather contributes to your ability to do so.

Water on the earth is never truly flat, but it is impossible to measure this on the small scale due to a variety of effects such as meniscus, wave, eddy, wind and vibration all of which swamp the curve which is measurable on a large scale.
I know round when I see it.

#### Fikealox

• 415
##### Re: Proof The Earth Is Spherical
« Reply #23 on: May 17, 2008, 02:20:22 AM »
You are free to accept whichever evidence you'd like. However, which type of evidence a better proof for the subject matter; A repeatedly preformed experiment that anyone can easily reproduce and conduct over a long body of water, or an experiment impossible to preform unless you are a government agency with a multi-billion dollar budget?

It boils down to a matter of first hand evidence which has been peer reviewed over and over again for the last 150 years versus third hand evidence which has undergone no peer review. No one has peer reviewed NASA's Apollo missions. So which type of evidence is more reliable?

Your post is full of nonsense.

First, the experiment in question is most definitely not an example of a first-hand account. NASA's photographs are far more easily considered "first-hand" than an extract from a book, found on a photography website, of a report about a photograph. Incidentally, the book in question is titled 'Eccentric Lives & Peculiar Notions'. Does that tell you something?

Second, show me actual evidence of this experiment being repeatedly performed and peer reviewed in any rigorous manner. Keep in mind that "peers" aren't just other crackpots, your family and friends, your business associates, or people you've made a bet against.

Third, the supposed results of the experiment you've mentioned, as we've covered again and again and again, has no basis in fact and no correlation with reality. My personal experience is entirely in opposition to the findings of this mysterious "Lady Blount", as is, I am sure, the experience of any other person who has experience of watch-keeping at sea.

#### Youre avin a larf

• 644
• Official RE Conspiracy Spokesman
##### Re: Proof The Earth Is Spherical
« Reply #24 on: May 17, 2008, 02:43:45 AM »
A repeatedly preformed experiment that anyone can easily reproduce ...

OK, so how about the 'sundial' experiment I suggested.

You have yet to offer any credible explanation of how the movement of the sun in the FE model can produce the observable constant angular velocity of the sun.
I know round when I see it.

#### mariaconda

• 23
##### Re: Proof The Earth Is Spherical
« Reply #25 on: May 17, 2008, 04:05:39 AM »
I just tried the experiment with the sheet. It failed. I couldn't see the bottom of it. I guess the earth is round after all.
t's not about being the rightest, it's about being the stupidest without being the smartest.

#### Youre avin a larf

• 644
• Official RE Conspiracy Spokesman
##### Re: Proof The Earth Is Spherical
« Reply #26 on: May 17, 2008, 06:01:40 AM »
No one has peer reviewed NASA's Apollo missions. So which type of evidence is more reliable?

Not surprisingly you don't need a peer review of something 100's of millions of people watched on TV.
NASA does however publish papers on science aspects of space exploration. Sorry it's a long list

The following are NASA peer reviewed papers published in the last 10 or so years, from just one part of NASA, The FDAB:

R. Azor, I.Y. Bar-Itzhack, J. Deutschmann (now Thienel), and R.R. Harman
'Angular-Rate Estimation Using Delayed Quaternion Measurements'
AIAA Journal of Guidance, Control, and Dynamics
Vol. 24, No. 3, pp. 436-443.
May-June 2001

F. Bauer, J. Bristow, R. Carpenter, J. Garrison, K. Hartman, A. Long, T. Lee, D. Kelbel, V. Lu, J. How, F. Busse, P. Axelrad, M. Moreau
'Enabling Spacecraft Formation Flying in Any Earth Orbit Through Spaceborne GPS and Enhanced Autonomy Techniques'
Proceedings of the International Workshop on Aerospace Applications of the Global Positioning System
Breckenridge, CO
Jan 31-Feb 2, 2000

I. Bar-Itzhack (Technion) & R. Harman (GSFC)
'State-Dependent Pseudo-Linear Filter for Spacecraft Attitude and Rate Estimation'

I. Bar-Itzhack (Technion) & R. Harman (GSFC)
'In-Space Calibration of a Gyro Quadruplet'

S. Belur (CSC) & R. Harman (GSFC)
'Calibration of Gyros with Temperature Dependent Scale Factors'

J. Bolek, E. Holmes, J. O'Donnell, P. Sabelhaus, S. Scott, and J. Storyv
'On-Orbit ACS Performance of the Landsat 7 Spacecraft'

Carpenter, J. Russell
'Trajectory Reconstruction'
(invited seminar)

Carpenter, J. Russell and Schiesser, Emil S.
'Semi-major axis knowledge and GPS orbit determination'
To appear in upcoming issue of NAVIGATION

Carpenter, J. Russell
'Decentralized control for satellite formations'
Final draft accepted for publication in International Journal of Robust & Nonlinear Control

R. Carpenter
'A Preliminary Investigation of Decentralized Control for Satellite Formations'
Proceedings of the 2000 IEEE Aerospace Conference
Mar 18-25, 2000

Carpenter, J. Russell
'Distributed Spacecraft Control Architectures'
(invited presentation)

J. Chen, W. Morgenstern & J. Garrick (GSFC)
'Triana Safehold: A New Gyroless Sun-Pointing Attitude Controller'

Robert L. DeFazio (GSFC), Skip Owens (a.i.solutions), Susan Good (a.i.solutions)
'Follow that Satellite: EO-1 Maneuvers into Close Formation with Landsat-7'

Julie Deutschmann, Itzhack Bar-Itzhack, and Rick Harman
'A LEO Satellite Navigation Algorithm Based on GPS and Magnetometer Data'
International GPS Workshop & International Flight Dynamics Conference
Biarritz, France

Julie Deutschmann (now Thienel), Itzhack Bar-Itzhack, and Rick Harman
'A LEO Satellite Navigation Algorithm Based on GPS and Magnetometer Data'

J.K. Deutschmann (now Thienel) and I.Y. Bar-Itzhack
'Evaluation of Attitude and Orbit Estimation Using Actual Earth Magnetic Field Data'
AIAA Journal of Guidance, Control, and Dynamics
Vol. 24, No. 3, pp. 616-623.
May-June 2001

Dr. Aprille Ericsson-Jackson
Technical presentation on MAP ACS Summary
Taylor University, Physics Department, IN.
May 2000

Dr. Aprille Ericsson-Jackson, NCA&T
'Experiences & Opportunities for a Ph.D. Student'
Greensboro, NC
January 1,2000

Dr. Aprille Ericsson-Jackson, Texas Southern University
'How to Make an Outstanding Technical Presentation'
Dallas, TX
February 5, 2000

Dr. Aprille Ericsson-Jackson, Tarrant County College
'Obtaining One’s Goals in a Technical Environment'
Ft. Worth, TX
February 7, 2000

D Folta (GSFC) & A. Hawkins (a.i. solutions)
'Preliminary Results of NASA’s first Autonomous Formation Flying Experiment: EO-1'

D. Folta (GSFC), C. Youn (Univ of CO), A. Ross (Harvard Univ)
'Unique Non-Keplerian Orbit Vantage Locations for Sun-Earth Connection and Earth Science Vision Roadmaps'

Folta, David and Lauri Kraft
'Methodology for the Passive Control of Orbital Inclination and Mean Local Time to Meet Sun-Synchronous Orbit Requirements'
AAS 92-143
AAS/AIAA Spaceflight Mechanics Meeting
Colorado Springs, CO
February 24-26, 1992

Folta, David C. and Lauri Kraft Newman
'Establishment And Maintenance Of A Constellation Of MTPE Spacecraft'
Flight Mechanics/Estimation Theory Symposium
Goddard Space Flight Center
May 1996

Folta, David C., Newman, Lauri Kraft, and Gardner, Tom
'Foundations of Formation Flying for Mission to Planet Earth and New Millenium'
AIAA 96-3645
AIAA Guidance, Navigation, and Control Conference
San Diego, CA
July 29-31, 1996

Cheryl Gramling
'Preliminary Operational Results of the TDRSS Onboard Navigation System (TONS) for the Terra Mission'
ISSD conference
Biarritz, France
June 2000

J.L. Garrison, M.C. Moreau (GSFC), P. Axelrad (Univ. Colorado)
' Tracking Loop Optimization for On-Board GPS Navigation in High Earth Orbit (HEO) Missions'

S. Hoge & F. Vaughn (GSFC)
'Trajectory Design and Control f0r the Compton Gamma Ray Observatory Re-entry'

Sue Hoge (GSFC) and Frank Vaughn (GSFC)
'Trajectory Design and Control for the Compton Gamma-Ray Observatory Re-entry'

S. Hoge & F. Vaughn (GSFC)
'Trajectory Design and Control for the Compton Gamma Ray Observatory Re-entry'

S. Hughes (GSFC), L. Mailhe (a.i. solutions)
'A Preliminary Formation Flying Orbit Dynamics Analysis for Leonardo-BRDF'

Steven P. Hughes (GSFC) and Laurie M. Mailhe (a.i. solutions)
'A Preliminary Formation Flying Orbit Dynamics Analysis for Leonardo-BRDF'

D. Kelbel, T. Lee & A. Long (CSC), and R. Carpenter & C. Gramling (GSFC)
'Evaluation of Relative Navigation Algorithms for Formation-Flying Satellites'

G. Lightsey, C. Campbell, R. Carpenter, J. Simpson, G. Davis
'Design and Performance of Space Algorithms for the GPS Receiver used on International Space Station and Crew Return Vehicle'
Proceedings of the International Workshop on Aerospace Applications of the Global Positioning System
Breckenridge, CO
Jan 31-Feb 2, 2000

A. Long, D. Kelbel, T. Lee, R. Carpenter, C. Gramling
'Autonomous Relative Navigation for Formation-Flying Satellites Using GPS'
CNES 15th International Symposium on Space Flight Dynamics
Biarritz, France
June 26-30, 2000

A. Long, D. Kelbel, T. Lee, R. Carpenter, J. Garrison
'Autonomous Navigation Improvements for High Earth Orbiters Using GPS'
CNES 15th International Symposium on Space Flight Dynamics
Biarritz, France
June 26-30, 2000

Rich Luquette (GSFC/GNCC) and Rob Sanner (Univ. of Md.)
'A Nonlinear Approach to Spacecraft Formation Control in the Vicinity of a Collinear Libration Point'

Rich Luquette (GSFC) and Rob Sanner (Univ. of Md.)
'A Nonlinear Approach to Spacecraft Trajectory Control in the Vicinity of a Libration Point'

P. G. Maghami (GSFC), and D. E. Cox (LaRC)
'Control of Flexible Systems in the Presence of Failures'

D. McGiffin, M. Mathews (CSC), and S. Cooley (GSFC)
'High Earth Orbit Design for Lunar-Assisted Medium Class Explorer Missions'

McIntosh, Richard J., Noonan, Paul J., and Lauri K. Newman
'Terra Ascent Planning to Meet Landsat-7 Phasing Requirements'
AIAA 2000 -4342
AIAA Astrodynamics Specialist Conference
Denver, CO
August 14-17, 2000

M.C. Moreau (GSFC) , P. Axelrad (Univ. Colorado), J.L. Garrison, M. Wennersten (GSFC) , A.C. Long CSC)
' Test Results of the PiVoT Receiver in High Earth Orbits using a GSS GPS Simulator'

Newman, Lauri Kraft, et al
'Reentry Analysis for Low Earth Orbiting Spacecraft'
AAS 93-307
AAS/NASA International Symposium on Space Flight Dynamics
Greenbelt, MD
April 26-30, 1993

Newman, Lauri Kraft, Folta, David C., and James P. Farrell
'Obtaining Coincident Image Observations For Mission To Planet Earth Science Data Return'
Flight Mechanics/Estimation Theory Symposium
Goddard Space Flight Center
May 1994.

Newman, Lauri K. and David Rohrbaugh
'Trajectory Design for the Microwave Anisotropy Probe (MAP)'
AAS/NASA International Symposium on Space Flight Dynamics
Pasadena, CA
December 3-6, 2001

Newman, Lauri K., Noonan, Paul J., and Cheryl. J. Gramling
'Ground System Support Of An Onboard Navigation System: Implementation And Operations Experiences'
AAS 00-121
AAS/AIAA Space Flight Mechanics Meeting
Clearwater, FL
January 23-26, 2000

Newman, Lauri K., Hametz, Mark E., and Darrel J. Conway
'A Modernized Approach to Meet Diversified Earth Observing System (EOS AM-1) Mission Requirements'
AAS 98-306
AAS/NASA 13th International Symposium on Space Flight Dynamics
Greenbelt, MD
May 11-15, 1998

Newman, Lauri Kraft and David C. Folta
'Evaluation of Spacecraft End-of-Life Disposal to Meet NASA Management Instruction (NMI) Guidelines'
AAS 95-325
AAS/AIAA Astrodynamics Specialist Conference
Halifax, Nova Scotia
August 14-18, 1995

Lauri K. Newman, Richard J. McIntosh, and Paul J. Noonan
'Terra Ascent Planning to Meet Landsat-7 Phasing Requirements,'
AIAA 2000 -4342
AIAA Astrodynamics Specialist Conference
Denver, CO
August 14-17, 2000

Lauri K Newman, Paul J. Noonan, and Cheryl. J. Gramling
'Ground System Support Of An Onboard Navigation System: Implementation And Operations Experiences'
AAS 00-121
AAS/AIAA Space Flight Mechanics Meeting
Clearwater, FL
January 23-26, 2000

N. Ottenstein, M. Challa, & A. Home (CSC), and R. Harman & R. Burley (GSFC)
'IMAGE Mission Attitude Support Experiences'

J. O’Donnell, W. Morgenstern, M. Bartholomew (GSFC)
'Using Automation to Improve the Flight Software Testing Process'

David Quinn, R.E. Farley
'Tethered Formation Configurations: Meeting the Scientific Objectives of Large Aperture and Interferometric Science'

D.A. Quinn (GSFC), P. Sanneman, S. Shulman, J. Sager (Swales)
'The Integration, Testing and Flight of the EO-1 GPS.'

Richon, Karen V. and Newman, Lauri Kraft
'Flight Dynamics Support for the Clementine Deep Space Program Science Experiment (DSPSE)'
AAS 95-444
AAS/AIAA Astrodynamics Specialist Conference
Halifax, Nova Scotia
August 14-18, 1995

S. Starin (GSFC) , R. K. Yedavalli (Ohio State University) & Andrew Sparks (VACA/AFRL)
'Spacecraft Formation Flying Maneuvers Using Linear-Quadratic Regulation with No Radial Axis Inputs'

S. Starin (GSFC), R. K. Yedavalli (Ohio State University) & Andrew Sparks (VACA/AFRL)
'Design of a LQR Controller of Reduced Inputs for Multiple Spacecraft Formation Flying'

S. Starin & J. O’Donnell (GSFC)
'A Two-wheel Observing Mode for the MAP Spacecraft'

Julie Thienel (GSFC) and R.M. Sanner (Univ. MD)
'A Coupled Nonlinear Spacecraft Attitude Controller/Observer with an Unknown Constant Gyro Bias'

Julie Thienel, Itzhack Bar-Itzhack (Technion Institute of Technology), and Rick Harman
'GPS/Magnetometer Based Satellite Navigation and Attitude Determination'

Julie Thienel (GSFC) and R.M. Sanner Univ. of Md.)
'A Nonlinear Spacecraft Attitude Controller and Observer with an Unknown Constant Gyro Bias and Gyro Noise'

« Last Edit: May 17, 2008, 06:04:04 AM by Youre avin a larf »
I know round when I see it.

#### Mrs. Peach

• 6275
##### Re: Proof The Earth Is Spherical
« Reply #27 on: May 17, 2008, 07:18:05 AM »
Regarding the spherecity of the earth, the following papers that you have referenced seem a little shaky.  If you would, please explain your reasons for their inclusion.

Dr. Aprille Ericsson-Jackson, NCA&T
'Experiences & Opportunities for a Ph.D. Student'
Greensboro, NC
January 1,2000

Dr. Aprille Ericsson-Jackson, Texas Southern University
'How to Make an Outstanding Technical Presentation'
Dallas, TX
February 5, 2000

Dr. Aprille Ericsson-Jackson, Tarrant County College
'Obtaining One’s Goals in a Technical Environment'
Ft. Worth, TX
February 7, 2000

#### CyborgJesus

• 215
• Professional Misanthrope
##### Re: Proof The Earth Is Spherical
« Reply #28 on: May 17, 2008, 07:50:30 AM »
Regarding the spherecity of the earth, the following papers that you have referenced seem a little shaky.  If you would, please explain your reasons for their inclusion.

Dr. Aprille Ericsson-Jackson, NCA&T
'Experiences & Opportunities for a Ph.D. Student'
Greensboro, NC
January 1,2000

Dr. Aprille Ericsson-Jackson, Texas Southern University
'How to Make an Outstanding Technical Presentation'
Dallas, TX
February 5, 2000

Dr. Aprille Ericsson-Jackson, Tarrant County College
'Obtaining One’s Goals in a Technical Environment'
Ft. Worth, TX
February 7, 2000

He's just referencing peer reviewed papers as an argument to Tom's "NASA hasn't been peer reviewed" statement.
Quote from: King Bishop
Jesus is officially made of fail. Eat that, Christianity!
Quote from: Bill Hicks
The human race is a virus with shoes.

#### Youre avin a larf

• 644
• Official RE Conspiracy Spokesman
##### Re: Proof The Earth Is Spherical
« Reply #29 on: May 17, 2008, 07:57:21 AM »
It's obvious.

This is what happens when you do a 'select all' from a 'published papers' list.
I know round when I see it.