Roll on the 20th June

[broli]

Notice how RS is smoothly playing the "if this works after all it's all because of me" tune, it's very subtle but if you listen good enough you hear it  .

[purepower]

@PP

Yep, the site was struggling for a while.

You make a convincing argument I still agree with Exx. I will deliberately use contrast to your example here as I almost puked a rainbow after reading yours    (no offence, but I really did!)

Okay, I say to you I want you to go the shops and get me some ciggies and a six pack. But you don't have a car. And you know I'll whoop your ass if you don't so you walk. The next day I'm in a better mood, but this time I want a case of beer. So I lend you my mountain bike with a rack for the beer. You use the mountain bike and return faster and having expended far less energy, and you even polished off a few of my beers on the way (damn, I should whoop your ass for that, no-one take my beer  )

Banked energy mate. Ironic this thread is discussing a wheel and I just gave you two to make your life easier. And it only took a Taiwanese kid 10 minutes to put it together after a machine spat the parts out. Sorry about the little accident you had when the handle bars fell of though 

shakman

Hey shake,

Thanks for remaining fairly reserved in your counter-post.

To make the discussion more coherent, let's pretend I'm picking up a six pack both trips, and it is smooth and level the whole way there. Again, this us just so we can eliminate the other variables and focus just on the difference between the bike and my legs.

Also, let's say there is a trip in between that I take on a skateboard (youll see where I'm going with this in a moment)

Okay, first day I walk. I have to use energy to stay on my feet, plus energy for every step, plus energy to carry the goods.

Second day I skate. I still have to use energy to stay on my feet, but I dont have to use energy for every step because I can roll part of the way. I also have to use energy to carry the beer.

Third day I bike. Now I dont have to use energy to stand, and only a bit to keep rolling.

Fourth day I drink all your beer.

As you can see, there is much, much more to these situations than just mechanics that influences total energy used.

Now, let me throw this back at you. There are two kids working one the assembly line making the bikes. One is fairly new, the other has years experience. The advanced builder can assemble a bike of superior quality with little effort (not much banked energy). The novis takes much more time and effort to produce a product of lesser quality (more banked energy).

Edit: too many variables for you to wiggle out of this

Let's pretend they are of identical quality, but one still took more time and effort to assemble.

Now tell me, how does the bike with less banked energy allow you to ride with less the same user energy than the bike with more banked energy?

-PurePower

[ramset]

Graham   so you don't believe the array Archer has built will run a wheel as is?  Chet

[jratcliff]

Pure power did you see this vid? where is it stopping its self ? http://www.youtube.com/watch?v=Ah4rDjRDZd0&feature=user  Chet

Did *you* see this video?  There is no continuous loop occurring here.  Move along, nothing yet to see...

[purepower]

Pure power did you see this vid? where is it stopping its self ? http://www.youtube.com/watch?v=Ah4rDjRDZd0&feature=user  Chet

Nope. "This video is currently not supported on the iPhone." I haven't figured out why some of his work and others dont, possibly compression formats?

Would you mind describing it to me, in detail?

-PurePower