1. Nature abhors a vacuum.

2. Some pumps and all vacuum cleaners work by suction.

3. Her death left a vacuum in his life.

4. The vacuum cleaner has various attachments.

5. The writer criticized the moral vacuum in society.

6. Sound waves cannot travel through a vacuum.

7. Her husband's death left a vacuum in her life.

8. I have to vacuum my room.

9. His presence should fill the power vacuum which has been developing over the past few days.

10. A vacuum flask keeps cool drinks cool and hot drinks hot.

11. He could also learn to use the vacuum cleaner(),[] the washing machine and other household appliances.

12. The vacuum inside the tube caused it to implode when the external air pressure was increased.

13. The withdrawal of troops from the area has created a security vacuum which will need to be filled.

14. The vacuum cleaner has four different attachments.

15. Exclusion of air creates a vacuum in the bottle.

16. Don't bang your vacuum cleaner about.

17. Other gases rush in to fill the vacuum.

18. My vacuum cleaner has very good suction.

19. The machine then creates a vacuum.

20. His resignation has left a power vacuum at the head of the party.

21. Higher pressures and vacua upon request!

22. The mixture is then distilled in vacua.

23. We cannot be sure how many stable vacua there are—that is, how many points where a ball could rest. But the number could very well be enormous.

24. Consequently, as time goes on, different vacua can come into existence.

25. Bousso notes that the vacua configurations may be immaterial—like atoms in a lump of iron.

26. About 10380 vacua lie in the sweet spot, but at most only a tiny fraction of them will be exactly zero.

27. The huge number of choices—at least 10120 vacua —seemed to demand vast computational power, perhaps even a quantum computer.

28. The path taken by that explorer is the sequence of vacua experienced at his location in the universe.

29. General relativity is not a zero-sum game—the stretching of the spatial fabric allows new volume to be created for both the old and the new vacua .

30. The radiation spectrum for relativistic electron moving along curved spiral curve in plasmas is calculated, and also the formula of total energy emitted by a relativistic electron in vacua is derived.

31. Similarly, only a small fraction of the stable vacua are hospitable to life.

32. In that case, statistics derived from many vacua , rather than trying to make predictions from a single one, might be more useful.

33. These may completely change or do away with the landscape of string vacua or with the cascade of bubbles that populate the landscape.

34. It would seem that most vacua never get their 15 minutes of fame.

35. Answering this question will require a much greater understanding of the spectrum of vacua and is the subject of active research on several fronts.

36. Then the author is able to define thespace of covacuaand thespace of vacua in the same way as in the untwisted case.