Work with the text tj get full information on the topic
Lesson 2
From Historical Development of Geodesy (Part II)
- Read and memorize new words and expressions on the text:
the question of the figure of the Earth
to raise in the antiquity
the model of the earth
rotational ellipsoid
the notion
founder of scientific geodesy
to develop the principles of measurements
to apply in modern ages
summer solstice
2. Read and translate the text
From Historical Development of Geodesy
Through the initiative of the Academy of Sciences, founded in Paris in 1666, France in the 18th centuries assumed the leading role in geodesy. The French abbey J. Picard in 1669-70 carried out an arc measurement on the meridian through Paris; he was the first to use a telescope with cross hairs. The value obtained by him for the radius of the earth aided Newton in the verification of the law of gravitation, which he had formulated in 1665-66.
In the 16 and 17 centuries, new observations and ideas from astronomy and physics influenced the perception of the figure of the Earth and its position in space.
N. Copernicus (1473 - 1543) achieved the transition from the geocentric universe of Ptolemy to a heliocentric system. J. Kepler (1571 - 1630) discovered the laws of planetary motion and Galileo Galilee (1564 - 1642) developed modern mechanics (law of falling bodies, law of pendulum motion).
Building on these and on their own works, Isaac Newton (1643 -1727) and Christian Huygens (1629 - 1695) developed the Earth models flattened at the poles and founded on principles of physics.
3. Make up dialogues using the text.