Scientific method vs. hollow earth theory

PHY 156 – Spring 2009 I.3 – Nature of Science Science is the great antidote to the poison of … superstition. Adam Smith, The Wealth of Nations, 1776 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Doing Science ,[object Object],[object Object],[object Object],[object Object],[object Object]

Which is more important in science: getting the correct answers, or the process of finding and testing answers? ,[object Object],[object Object]

Science ,[object Object],[object Object],[object Object],[object Object]

Questioning your assumptions Is the sky blue on a clear day? How do you know? Did someone tell you? Did you see it for yourself? What if I told you it wasn’t? Do you BELIEVE the sky is blue or do you ACCEPT it as reality? J. Heafner: www.sticksandshadows.com

Observed Fact (A) or Inference (B)? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Explaining the Observations

Science isn’t everything… ,[object Object],[object Object]

Figuring out the Rules ,[object Object],[object Object],Maria Mitchell (1818 – 1889) Astronomer and first woman elected to American Academy of Arts & Sciences ,[object Object],[object Object],[object Object]

Science ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Hallmarks 2) Testing against observations ,[object Object],[object Object],[object Object],[object Object]

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Concept Check Is this a scientific claim? Lightning is caused by the god Zeus throwing bolts at the Earth; doing so whenever he is angry A) Yes B) No

[object Object],[object Object],[object Object],[object Object],[object Object],J. Heafner: www.sticksandshadows.com

Science or not? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],The Language of Science: Consider these questions... J. Heafner: www.sticksandshadows.com

[object Object],[object Object],[object Object],[object Object],[object Object],Language Continued J. Heafner: www.sticksandshadows.com

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],J. Heafner: www.sticksandshadows.com

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Consistent Terminology J. Heafner: www.sticksandshadows.com

What we should say… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Clicker Question ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Consistent Terminology J. Heafner: www.sticksandshadows.com

Jargon Alert! ,[object Object]

[object Object],Organized approach to explaining observed facts with a TESTABLE model of nature Hypothesis = tentative explanation Question = curiousity Results: should be same no matter who conducts the test Modification & Self-correction! Creativity! Astronomy relies on Observation more than Experiment Inferences based on results  verification or falsification

Hallmarks of Science (from text) ,[object Object],Occam’s Razor: All else being equal , scientists prefer the simplest explanation

Never “proof” ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Convincing Others ,[object Object]

Back to Hollow Earth ,[object Object],[object Object]

Scientific method vs. hollow earth theory

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