Wilbur wright starts a paragraph on the bottom of page 16 that doesn’t end until the top of page 18. review the key ideas of this section and sort them into the correct order. 1. key idea 1 he estimates the first flying machine will only reach low speeds. 2. key idea 2 wilbur estimates they will need at least an engine weighing one hundred pounds. 3. key idea 3 wind resistance is a concern that needs to be solved. 4. key idea 4 wilbur and orville confirm the existence of tangential force. 5. key idea 5 the twentieth century will solve the problem of flight. 6. key idea 6 travel by land and water were solved in the nineteenth century.

Read this excerpt from i never had it made. "it's all that ought to count," he replied. "but it isn't. maybe one of these days it will be all that counts. that is one of the reasons i've got you here, robinson. if you're a good enough man, we can make this a start in the right direction. but let me tell you, it's going to take an awful lot of courage." he was back to the crossroads question that made me start to get angry minutes earlier. he asked it slowly and with great care. "have you got the guts to play the game no matter what happens? " "i think i can play the game, mr. rickey," i said. the next few minutes were tough. branch rickey had to make absolutely sure that i knew what i would face. beanballs would be thrown at me. i would be called the kind of names which would hurt and infuriate any man. i would be physically attacked. could i take all of this and control my temper, remain steadfastly loyal to our ultimate aim? which is the central idea of this excerpt?