(The Oxford Children’s Book of Science, Pg 143, Charles Taylor and Stephan Pople, 1995, OUP, NY)
|
|
CAR
|
HUMAN |
|
Engine(s) |
Gasoline/Diesel Engine |
Muscles |
|
Fuel |
Gasoline/Diesel Fuel |
Any food, which is then converted to Glucose |
|
Gas Required for Engine to work |
Oxygen |
Oxygen |
|
Waste Materials Produced |
Carbon Dioxide, Water (CO, unburnt oxides of N, unless catalytic converter is installed) |
Carbon Dioxide, Water, Biodegradable organic waste |
|
Load Carrying Ability |
2200 lb |
44 lb |
|
Energy needed to travel 0.6 miles on level ground |
2500 kJ |
100 kJ |
|
Max speed |
100 mph |
15 mph |
|
Ability to cross ground |
Smooth surface normally required, but some can cross rough ground up to 45 degrees steep |
Can cross extremely rough and mountainous ground, climb trees and cliffs, and also cross water |
|
Servicing and Maintenance |
Major service once a year, some parts may need regular replacement (tires) |
Largely self-repairing, occasional health checks, and sometimes medical treatment. |
|
Life Span |
10 yr |
75 yrs |