- #1
Pengwuino
Gold Member
- 5,124
- 17
Here is something that I have been pondering for the last few days. What is the most efficient means of travel?
I figured I wanted to compare air travel vs. car travel vs. train vs. boat vs. walking vs. biking.
Now I figured I can compare air, car, train and boat pretty easily by comparing how much energy could be captured out of the fuel used in each case... but I'm kinda stumped as to how I can compare the energy needed for walking and biking. You need energy to travel by foot or biking but I'm not sure how I can compare gasoline to fruits and meat and milk. Any suggestions? :D
I figured I wanted to compare air travel vs. car travel vs. train vs. boat vs. walking vs. biking.
Now I figured I can compare air, car, train and boat pretty easily by comparing how much energy could be captured out of the fuel used in each case... but I'm kinda stumped as to how I can compare the energy needed for walking and biking. You need energy to travel by foot or biking but I'm not sure how I can compare gasoline to fruits and meat and milk. Any suggestions? :D