Answer the questions at the end based on the text.

Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain and predict natural phenomena. This is in contrast to experimental physics, which uses experimental tools to probe these phenomena.

The advancement of science generally depends on the interplay between experimental studies and theory. In some cases, theoretical physics adheres to standards of mathematical rigor while giving little weight to experiments and observations. For example, while developing special relativity, Albert Einstein was concerned with the Lorentz transformation which left Maxwell's equations invariant, but was apparently uninterested in the MichelsonMorley experiment on Earth's drift through a luminiferous ether. Conversely, Einstein was awarded the Nobel Prize for explaining the photoelectric effect, previously an experimental result lacking a theoretical formulation.

A physical theory is a model of physical events. It is judged by the extent to which its predictions agree with empirical observations. The quality of a physical theory is also judged on its ability to make new predictions which can be verified by new observations. A physical theory differs from a mathematical theorem in that while both are based on some form of axioms, judgment of mathematical applicability is not based on agreement with any experimental results. A physical theory similarly differs from a mathematical theory, in the sense that the word "theory" has a different meaning in mathematical terms. A physical theory involves one or more relationships between various measurable quantities. Archimedes realized that a ship floats by displacing its mass of water, Pythagoras understood the relation between the length of a vibrating string and the musical tone it produces. Other examples include entropy as a measure of the uncertainty regarding the positions and motions of unseen particles and the quantum mechanical idea that (action and) energy are not continuously variable.

1. What is theoretical physics used to explain?
2. Can it also predict things?
3. What does it employ?
4. What part of physics is it different from?
5. What did Einstein develop?
6. What did he win for this?
7. What does a physical theory involve?
8. What keeps a boat above water?
9. Who figured this out?
10. Did he also study musical tone?

Numbered answers:

A: 1. natural phenomena.
2. yes
3. matematical models
4. This is in contrast to experimental physics, which uses experimental tools to probe these phenomena.
5. an explanation of the photoelectric effect
6. the Nobel prize
7. it's a model of physical events/
8. it displaces its mass of water
9. Archimedes
10. Pythagoras understood the relation between thno

Answer the questions at the end based on the text.

CHAPTER LXXVI Some Pleasant, Shady Talk In The Groves, Between My Lords Abrazza And Media, Babbalanja, Mohi, And Yoomy

Abrazza had a cool retreat--a grove of dates; where we were used to lounge of noons, and mix our converse with the babble of the rills; and mix our punches in goblets chased with grapes. And as ever, King Abrazza was the prince of hosts.

"Your crown," he said to Media; and with his own, he hung it on a bough.

"Be not ceremonious:" and stretched his royal legs upon the turf.

"Wine!" and his pages poured it out.

So on the grass we lounged; and King Abrazza, who loved his antique ancestors; and loved old times; and would not talk of moderns;--bade Yoomy sing old songs; bade Mohi rehearse old histories; bade Babbalanja tell of old ontologies; and commanded all, meanwhile, to drink his old, old wine.

So, all round we quaffed and quoted.

At last, we talked of old Homeric bards:--those who, ages back, harped, and begged, and groped their blinded way through all this charitable Mardi; receiving coppers then, and immortal glory now.

ABRAZZA--How came it, that they all were blind?

BABBALANJA--It was endemical, your Highness. Few grand poets have good eyes; for they needs blind must be, who ever gaze upon the sun. Vavona himself was blind: when, in the silence of his secret bower, he said--"I will build another world. Therein, let there be kings and slaves, philosophers and wits; whose checkered actions--strange, grotesque, and merry-sad, will entertain my idle moods." So, my lord, Vavona played at kings and crowns, and men and manners; and loved that lonely game to play.

1. Where did someone stretch his legs?
2. Who's crown had he taken?
3. And placed it where?
4. Where did they rest?
5. Who poured the drink?
6. What was it?
7. What grew there?
8. Did they drink from flutes?
9. What then?
10. What was requested of Mohi?
11. And Yoomy?
12. What of babbalanja?
13. And what were they all to do?
14. Of what?
15. Did they do as requested of them?
16. Who was blind?
17. Anyone else?
18. What did he wish to create?
19. Would there be royalty there?
20. And wise men?

Numbered answers:

A: 1. the turf.
2. Media's
3. a bough.
4. on the grass
5. pages
6. Wine
7. dates
8. No.
9. goblets
10. rehearse old histories
11. sing old songs
12. tell of old ontologies
13. drink
14. old, old wine.
15. Yes.
16. old Homeric bards
17. Vavona
18. another world.
19. Yes.
20. Yes.

Answer the questions at the end based on the text.

Two good friends, Sam and Jason, met with a car accident on their way home one night. The next morning, Sam woke up blind. His legs were broken. The doctor, Mr Lee was standing by his bed, looking at him with a thoughtful expression. When he saw Sam awake, he asked, "How are you feeling, Sam?" Sam smiled and said, "Not bad, Doctor. Thank you for doing the operation ." Mr Lee was moved by Sam. When he was leaving, Sam said, "Please don't tell Jason about it." "... OK." Mr Lee replied.

Months later when Jason's wounds _ , Sam was still very sick. Neither could he see or walk. What he could do was just stay in his wheelchair all day long. At first, Jason stayed with him for a few days. But days later, Jason felt very discouraged and embarrassed to spend time staying with a disabled man like Sam. So he went to see Sam less and less. He made new friends. From then on, he didn't go to visit Sam any more. Sam didn't have any family or friends other than Jason. He felt very sad.

Things went from bad to worse. Sam died a year later. When Jason came, Mr Lee gave a letter to him. It was from Sam. In the letter Sam said, "Dear Jason, I am disabled. But I want you to be a healthy man. So I gave my eyes to you so that you can enjoy life as a healthy man. Now you have new friends. I'm glad to see that you are as healthy and happy as usual. I'm glad you live a happy life. You are always my best friend ... ... Sam". When he finished reading the letter Mr Lee said, "I have promised that I will keep this a secret until Sam is gone. Now you know it." Jason stood there. Tears ran down his face.

1. Who was the doctor?
2. Did he perform any surgeries?
3. Was he good at keeping secrets?
4. Who did he operate on?
5. Who was his friend?
6. Did they share a tragedy together?
7. what?
8. Who recovered faster?
9. Was he disabled?
10. How did he feel about his friend?
11. Was his friend surrounded by lots of people?
12. Why not?
13. What did he sacrifice for his buddy?
14. Who told him about it?

Numbered answers:

A:
1. Mr Lee
2. yes
3. yes
4. Sam
5. Jason
6. yes
7. a car accident
8. Jason
9. No
10. discouraged and embarrassed
11. No
12. Sam didn't have any family or friends other than Jason
13. his eyes
14. Sam in a letter