When Einstein was 5 years old, his father showed him something that inspired him to be interested in science. What was it?

• a compass
  Einstein claimed that seeing his father's compass left a "deep and lasting impression" on him.
• a calculator
  Einstein claimed that seeing his father's compass left a "deep and lasting impression" on him.
• a telescope
  Einstein claimed that seeing his father's compass left a "deep and lasting impression" on him.