1. def distanceinput():
  2. distance = eval(input('Enter a distance (in light years):'))
  3. print("Velocity Relative time to reach", distance, "light years")
  4. return distance
  6. def velocity(velocityPercent, distance):
  7. DilationFactor = (((1 - (velocityPercent ** 2)) / 10000) ** 0.5)
  8. perceptualSpeed = (distance * DilationFactor) * 100
  9. print(velocityPercent, + "% of light", perceptualSpeed, "years.")
  11. def Time():
  12. velocity(10, distanceinput())