Is The Earth A Flat Round Disc or Is It a Round Spherical Globe?

[gravityblock]

Just for SeaMonkey:  Flat Earth: Periscopes Prove Zero Curvature

Gravock

[tinman]

Just for SeaMonkey:  Flat Earth: Periscopes Prove Zero Curvature

Gravock

http://www.ussnautilus.org/education/pdf/stemlessons/LessonPlanUpPeriscope.pdf

I. With the periscope, you can measure the bearing to an object on land and determine the range
that object, to determine your position at sea.
II. Using the height of the object being viewed and the height of your periscope above the waterline,
draw a picture of your submarine and periscope, the viewed object, and the curve of the Earth.
III. Draw a line connecting the maximum height of both objects. Discuss how that line is a tangent
to the Earth.
IV. Draw the radius of the Earth to both objects and to the point where the tangent line touches the
Earth.
V. Calculate the missing side lengths of any right triangles, and determine how far you are from the
other object.
VI. Discuss how objects with different heights will be seen from different distances away


Brad

[gravityblock]

http://www.ussnautilus.org/education/pdf/stemlessons/LessonPlanUpPeriscope.pdf

I. With the periscope, you can measure the bearing to an object on land and determine the range
that object, to determine your position at sea.
II. Using the height of the object being viewed and the height of your periscope above the waterline,
draw a picture of your submarine and periscope, the viewed object, and the curve of the Earth.
III. Draw a line connecting the maximum height of both objects. Discuss how that line is a tangent
to the Earth.
IV. Draw the radius of the Earth to both objects and to the point where the tangent line touches the
Earth.
V. Calculate the missing side lengths of any right triangles, and determine how far you are from the
other object.
VI. Discuss how objects with different heights will be seen from different distances away


Brad

The highlighted portion in number 2 above is based on a false premise, and the earth being a flat round disc will also have a radius in regards to the highlighted portion in number 4 above.  In other-words, the highlighted text proves nothing.

Gravock

[seychelles]

Now i know why ALIENS would not communicate with us because WE ARE LIKE FUCKING COCKROACHES.. Do i get this right are we in this day and age discussing if the earth is a ball or a flat disc..PLEASE ...

[gravityblock]

Now i know why ALIENS would not communicate with us because WE ARE LIKE FUCKING COCKROACHES.. Do i get this right are we in this day and age discussing if the earth is a ball or a flat disc..PLEASE ...

Please take your Spam somewhere else!

Gravock