FIGURE 9.3 A Topic Sentence Works Better at the Start of the Paragraph

TOPIC SENTENCE AT THE END OF THE PARAGRAPH	TOPIC SENTENCE AT THE START OF THE PARAGRAPH
A solar panel affixed to a satellite in distant geosynchronous orbit receives about 1400 watts of sunlight per square meter. On Earth, cut this number in half, due to the day/night cycle. Cut it in half again because sunlight hits the Earth obliquely (except exactly on the equator). Cut it in half again due to clouds and dust in the atmosphere. The result: eight times the amount of sunlight falls on a solar panel in sun-synchronous orbit as falls on the same size area on Earth.	Eight times the amount of sunlight falls on a solar panel in distant geosynchronous orbit as falls on the same size area on Earth. A solar panel affixed to a satellite in sun-synchronous orbit receives about 1400 watts of sunlight per square meter. On Earth, cut this number in half, due to the day/night cycle. Cut it in half again because sunlight hits the Earth obliquely (except exactly on the equator). Cut it in half again due to clouds and dust in the atmosphere.
FIGURE 9.3 A Topic Sentence Works Better at the Start of the Paragraph