Read the sentences from Last Lecture by Randy Pausch. And if you’re curious about what zero gravity looks like, hopefully the sound will be working here. [slide shows videotape from Randy’s zero gravity experience] There I am. [laughter] You do pay the piper at the bottom. [laugher, as the people in the video crash to the floor of the plane on the video] So, childhood dream number one, check.

Why does Pausch show the audience a video of his zero-gravity experience?

to prove that people are curious about zero gravity
to show what being in zero gravity looks like
to prove that some astronauts do wear glasses
to show that being in zero gravity is painful

In his adaptation of this excerpt, laurence olivier uses high cliffs as a a background and he holds onto a knife. what's effect do these choices have?

Based on the map, which arabian city will marco polo describe after kalhat if he continues northwest across the arabian sea?

Read the quote from zimmermann in the code book. a future government could inherit a technology infrastructure that's optimized for surveillance, where they can watch the movements of their political opposition, every financial transaction, every communication, every bit of e-mail, every phone call. everything could be filtered and scanned and automatically recognized by voice recognition technology and transcribed. it's time for cryptography to step out of the shadows of spies and the military, and step into the sunshine and be embraced by the rest of us. which question does this paragraph answer? why does zimmermann think encryption is important? what kind of encryption did zimmermann invent? how does zimmermann’s encryption work? who made encryption based on zimmermann’s work?