Philosophers in antiquity used the concept of force in the study of stationary and moving objects and simple machines, but thinkers such as Aristotle and Archimedes retained fundamental errors in understanding force. In part this was due to an incomplete understanding of the sometimes non-obvious force of friction, and a consequently inadequate view of the nature of natural motion. A fundamental error was the belief that a force is required to maintain motion, even at a constant velocity. Most of the previous misunderstandings about motion and force were eventually corrected by Galileo Galilei and Sir Isaac Newton. With his mathematical insight, Sir Isaac Newton formulated laws of motion that were not improved-on for nearly three hundred years. By the early 20th century, Einstein developed a theory of relativity that correctly predicted the action of forces on objects with increasing momenta near the speed of light, and also provided insight into the forces produced by gravitation and inertia. What are the answers to this following set of questions: 1. Who corrected misconceptions about motion and force?
2. Who compiled laws of motion?
3. Were they ever improved?
4. After how long?
5. Who furthered knowledge of gravity and inertia?
6. What did his theory of relativity predict?
7. When was it developed?
8. What misconception did Aristotle have?
9. Did anyone else share this misconception?
10. Who?
11. Is force required to maintain motion?
12. Did Aristotle and Archimedes correctly understand that theory?
13. Who eventually corrected the falsehoods?
Answer: 1. Galileo Galilei and Sir Isaac Newton
2. Sir Isaac Newton
3. yes
4. three hundred years
5. Einstein
6. the action of forces on objects with increasing momenta near the speed of light
7. early 20th century
8. force of friction
9. yes
10. Archimedes
11. no
12. no
13. Galileo Galilei and Sir Isaac Newton

CHAPTER XXVIII

FIRE AND HAIL

On the morning after her return from Winnipeg, Beatrice sat in her father's study, with Mowbray facing her across the table. He looked thoughtful, but not so shocked and indignant as she had expected.

"So you are determined to throw Harding over!"

"Yes," Beatrice said in a strained voice. "It seems impossible to do anything else."

"A broken engagement's a serious matter; we Mowbrays keep our word. I hope you're quite sure of your ground."

"What I heard left no room for doubt."

"Did you hear the man's defense?"

"I refused to listen," said Beatrice coldly. "That he should try to excuse himself only made it worse."

"I'm not sure that's very logical. I'll confess that Harding and I seldom agree, but one must be fair."

"Does that mean that one ought to be lenient?" Beatrice asked with an angry sparkle in her eyes.

Mowbray was conscious of some embarrassment. His ideas upon the subject were not sharply defined, but if it had not been his daughter who questioned him he could have expressed them better. Beatrice ought to have left her parents to deal with a delicate matter like this, but instead she had boldly taken it into her own hands. He had tried to bring up his children well, but the becoming modesty which characterized young women in his youth had gone.

"No," he answered; "not exactly lenient. But the thing may not be so bad as you think--and one must make allowances. Then, a broken engagement reflects upon both parties. Even if one of them has an unquestionable grievance, it proves that that person acted very rashly in making a promise in the first instance." What are the answers to this following set of questions: 1. What had Beatrice broken?
2. with woh?
3. did her father and harding often agree?
4. Does he think she should have kept the engagement?
5. does he think she is being fair?
6. would she listen to her fiancee's excuses?
7. did she believe what she had heard about him?
8. Did her father think it made sense notto hear Harding's side of the story?
9. did he think she should have made the decision on her own?
10. who should have been involved?
11. did he think his daughter immodest?
12. did he see it as a parenting failure?
13. who does he feel looks bad in a broken engagement
14. what might it show>?
Answer: 1. engagement
2. Harding
3. No
4. yes
5. No
6. No
7. Yes
8. No
9. No
10. her parents
11. yes
12. Yes
13. both parties.
14. person acted very rashly in making a promise in the first instance

(CNN) -- Marissa Mayer, who was Google's first female engineer and its 20th employee when she joined that company in 1999, has been named CEO of Yahoo.

She's the fifth CEO in as many years at that struggling company. Monday's announcement has caused ripples in the world of technology as people expressed surprise that Mayer would leave Google and that Yahoo has landed such a charismatic leader.

Here's a quick guide to some of the most interesting and water-cooler-worthy facts about the 37-year-old. (We know what you're thinking. And yes -- an 11-point list can successfully illuminate decades of a person's personal and professional life. Of course it can.)

If we missed something fun, let us know in the comments.

1. She's responsible for the clean look of Google.com. The minimalist home page, with plenty of white space and a single search bar in the center, is said to be the brainchild of Mayer, who has overseen the launch and development of many of Google's iconic products.

"Google has the functionality of a really complicated Swiss Army knife, but the home page is our way of approaching it closed. It's simple, it's elegant, you can slip it in your pocket, but it's got the great doodad when you need it," she told Fast Company in 2005. "A lot of our competitors are like a Swiss Army knife open -- and that can be intimidating and occasionally harmful."

2. She specializes in artificial intelligence. Mayer holds bachelor's and master's degrees from Stanford University. For both degrees, Mayer focused on artificial intelligence, which has become a core area of focus for Google, a company that has introduced autonomous cars and whose computers are trying to use equations to understand human speech. She told CNN she holds several patents in AI and interface design. What are the answers to this following set of questions: 1. What company just got a new CEO?
2. What is that person's name?
3. Where did she work previously?
4. Was their anything special about her and that comany?
5. What does she specialize in?
6. What well-known thing is she responsible for?
7. How many points did the full article make about her?
8. Who did she speak to in 2005?
9. What common item did she reference in that talk?
10. Did she go to college?
11. Where did she go?
12. Did she get an undergraduate and post-grad certificate?
13. What did she tell CNN?
14. In what?
15. Are people surprised that she left her old job?
16. What kind of leader do people think of her as?
17. Is there any sarcasm in this article?
18. Can you give me an example of it?
19. What is a core ideal at Google?
Answer:
1. Yahoo
2. Marissa Mayer
3. Google
4. First female engineer
5. Artificial intelligence
6. Tthe clean look of Google.com.
7. 11
8. Fast Company
9. Swiss Army Knife
10. Yes
11. Stanford University.
12. Yes
13. She holds several patents.
14. AI and interface design.
15. Yes
16. Charismatic.
17. Yes.
18. "Of course it can."
19. Artificial intelligence