full transcript

## Unscramble the Blue Letters

The problem with that is that we also have a lot of constraints. So the biggest one for us is upmass, and the nmuebr that I've used for years is it costs about 10,000 dollars to launch a can of Coke into low Earth orbit. The problem is, there you are with 10,000 darllos later, and you're still in low Earth orbit. You're not even at the Moon or Mars or anything else. So you're going to have to try to fgruie out how to keep the mass as low as possible so you don't have to launch it. But on top of that cost issue with the mass, you also have problems of storage and flexibility and reliability. You can't just get there and say, "Oops, I forgot to bring," because amzaon.com just does not deliver to Mars. So you better be paeerrpd.

## Open Cloze

The problem with that is that we also have a lot of constraints. So the biggest one for us is upmass, and the ______ that I've used for years is it costs about 10,000 dollars to launch a can of Coke into low Earth orbit. The problem is, there you are with 10,000 _______ later, and you're still in low Earth orbit. You're not even at the Moon or Mars or anything else. So you're going to have to try to ______ out how to keep the mass as low as possible so you don't have to launch it. But on top of that cost issue with the mass, you also have problems of storage and flexibility and reliability. You can't just get there and say, "Oops, I forgot to bring," because ______.com just does not deliver to Mars. So you better be ________.

1. number
2. dollars
3. amazon
4. prepared
5. figure

## Original Text

The problem with that is that we also have a lot of constraints. So the biggest one for us is upmass, and the number that I've used for years is it costs about 10,000 dollars to launch a can of Coke into low Earth orbit. The problem is, there you are with 10,000 dollars later, and you're still in low Earth orbit. You're not even at the Moon or Mars or anything else. So you're going to have to try to figure out how to keep the mass as low as possible so you don't have to launch it. But on top of that cost issue with the mass, you also have problems of storage and flexibility and reliability. You can't just get there and say, "Oops, I forgot to bring," because Amazon.com just does not deliver to Mars. So you better be prepared.

## Frequently Occurring Word Combinations

### ngrams of length 2

collocation frequency
upmass problem 4
bacillus subtilis 3
earth orbit 2
big idea 2
integrated circuits 2
cell phone 2
chemical energy 2
specific environments 2

## Important Words

1. amazon
2. biggest
3. bring
4. coke
5. constraints
6. cost
7. costs
8. deliver
9. dollars
10. earth
11. figure
12. flexibility
13. forgot
14. issue
15. launch
16. lot
17. mars
18. mass
19. moon
20. number
21. orbit
22. prepared
23. problem
24. problems
25. reliability
26. storage
27. top
28. upmass
29. years