Lecture (Level 1) – What we can learn from galaxies far, far away
by Henry Lin
a freshman (Sept. 2013) at Harvard University. At the age of 17 he won an Intel Foundation Young Scientist Award for his mathematical models of distant galaxy clusters.
First preview the vocabulary below. Then do the exercise by first reading a single question and then listening for the answer. When you hear the answer, pause the video and answer the question. Then read the next question and do the same thing. If you get the answer wrong, then go back to where the answer is given and listen again.
Quiz: What we can learn from galaxies far, far away - exercise
- Question 1 of 14
1.
What is a galaxy?
Correct!
Not it. The answer is found at 0:28
- Question 2 of 14
2.
How are galaxie clusters useful?
Yes. Good!
No. Wrong. The answer is found at 0:45
- Question 3 of 14
3.
How many types of experiments can you do with galaxy clusters?
Great!
Not so good. The answer is found at 0:55
- Question 4 of 14
4.
Why is the light of the very large galaxy cluster bending?
Superb!
Not right. The answer is found at 1:14
- Question 5 of 14
5.
What question might be answered by studying very large galaxies?
Nicely done!
Sorry. No. The answer is found at 1:47
- Question 6 of 14
6.
What is the blue light of the galaxy that he shows?
Awesome!
Incorrect. The answer is found at 2:05
- Question 7 of 14
7.
What is another word for million-degree gas?
Wonderful!
Mistake. The answer is found at 2:17
- Question 8 of 14
8.
What is most of the universe’s matter made of?
Nice job!
Wrong answer. The answer is found at 3:02
- Question 9 of 14
9.
What color is dark matter in the photo of the Bullet Cluster?
Way to go!
Sorry. Wrong. The answer is found at 3:34
- Question 10 of 14
10.
How can galaxies teach us about the very small?
Good for you!
Too bad. The answer is found at 4:09
- Question 11 of 14
11.
What is the strangest thing in the universe?
Well done!
No way. The answer is found at 4:20
- Question 12 of 14
12.
What is dark energy?
Right you are!
Not this time. The answer is found at 4:39
- Question 13 of 14
13.
What are the biggest pieces of the universe?
Right you are!
Afraid not. The answer is found at 5:32
- Question 14 of 14
14.
What things come when we broaden out field of vision?
Nicely done!
Not this time. The answer is found at 6:21
Your Score:
Your Ranking:
Vocabulary:
clusters: collections, groups
mutual: shared
mysterious: unknown, with secrets
massive: very, very large
laboratories: places where discoveries happen
mass: weight, largeness
isolated: all alone with no neighbors
systems: collections of stars
scaled down: smaller
emitting: causing, producing
accelerating: causing something to go faster and faster
rough draft: a beginning of understanding
properties: qualities
probing: examining
matter: stuff
atoms: very small particles
collide: hit each other
compounded: made larger
affect: change
structure: shape
ingenuity: creativity
© 2014 Ambien Malecot