Why do jet engines have to be made of alloys?

2. What caused the two Comet crashes of 1954?

3. What advantages do turbine engines have over reciprocating engines?

4. What is distinctive about the Boeing 747 that makes it easy to spot?

5. What factors ended the Concorde program?

6. What changes did the jet era bring to airports?

7. What one big advantage do jet planes offer passengers?

8. What are some design features aircraft of the future may include?

9. How long would it take to fly from New York to London in a hypersonic aircraft?

How would widespread supersonic air travel change the world?

What would be some good consequences, and what would be some bad ones?

During the 1980s, profit from the sale of weapons to iran was used to stop the communists in costa rica. start a proxy war in el salvador. support the contras in nicaragua. stage a coup d’état in guatemala.

How has the presence of día de los muertos in mainstream media impacted the acceptance and celebration of the holiday?

Read the excerpt from suffragists' "great demand" banner. in june 1917, the district of columbia police began arresting picketers for obstructing sidewalk traffic. the women would be sentenced to serve in the occoquan workhouse prison in lorton, virginia. in august, scuffles broke out at the gates of the white house as angry spectators assaulted suffragists while city police stood by. the picketing continued. on october 20, alice paul was arrested and sentenced to seven months in jail. she and her companions were held in solitary confinement and denied counsel. paul went on a hunger strike and was violently force-fed. authorities confined her to a psychiatric ward in an effort to discredit her. on november 14, thirty women in the workhouse prison were beaten, threatened, and mistreated in what came to be known as the night of terror. chronological structure is used in this passage to emphasize the increasing aggression against women activists. clarify the purpose of the occoquan workhouse prison system. explain the relationship between alice paul and the authorities. define the types of women who were sentenced and imprisoned.