Analog

Question 1

Difference between Digital and Analog

Answer 1

Digital devices have a finite number of states while Analog devices have a continuum of possible states

Question 2

Time frame of the Astrolabe

Answer 2

Used in the Arab empire (~600 AD ~1600 AD. Possibly before but it is not definitive

Question 3

Parts of the Astrolabe

Answer 3

1. Outer backing: Mater
2. Metal: plates
3. cut-away disk: rete

Question 4

Use of the Astrolabe

Answer 4

Used for time telling and navigation(determining latitude).
Each 15 degrees represents 1 hour

Question 5

Astrolabe today

Answer 5

Not needed after the use of accurate mechanical clocks (Galileo’s conceived pendulum clock ~1600)

Question 6

Use of the Differential analyzer

Answer 6

Determining the area under a curve

Question 7

Time frame of the Differential Analyzer

Answer 7

Late 1920s. early 1930s

Question 8

Programming of the differential analyzer

Answer 8

Difficult to program and debug because it relied heavily on mechanical parts

Question 9

Military applications of the differential analyzer

Answer 9

Ballistics research (artillery and rocket trajectories)