Fall 2010 Earth Science Observations in Science--Illusions.

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Presentation transcript:

Fall 2010 Earth Science Observations in Science--Illusions

Our brains tend to love to play tricks on us when the occasion calls for it. So with the right colors, shapes, and patterns sometimes were tricked into seeing things that we really dont see.

Mars

Elephant Legs

Are the horizontal lines parallel or do they slope?

Impossible Nuts

Ouchi Illusion

Pyramids

What do you see? Mans Face and a word that starts with the letter L

Keep your eye on that center and watch the disappearing act

How about hypnosis

Move your eyes around, even though these appear to move, they are static.

What do you see?

How many tigers do you see?

Are you scared?

What do you see?

Yes, they are alive

How many colors do you see? 3

Two TablesSee Overhead

Explanations for Illusions THE SPEED OF LIGHT IS NOT INSTANTANEOUS: Ole Roemer (Danish astronomer, 1676) applied the delays observed in the orbiting time for the moons around Jupiter, and how this changed as Jupiter's distance changed.

Explanations for Illusions SUN DOES NOT REVOLVE AROUND US: Proposed by Copernicus (~1540), supported by Galileo and refined by Kepler (early 1600s), then confirmed with stellar parallax by Bessel (1838).

Explanations for Illusions RAINBOWS ARE NOT MATERIAL OBJECTS: Theodoric Freiburg (early 1300s), first to use the scientific method. Refined by Isaac Newton (1660s).

Explanations for Illusions SPECIES DO CHANGE: Charles Darwin's work with natural selection (published 1859). CONTINENTS ARE NOT FIXED: Proposed by Wegener (1915); Hess & Dietz (1960s) discovered sea floor spreading

The Blind Spot Illusion

The Science of the Blind Spot

One Last OneWheres Waldo