So then if you timed me and Bradley Wiggins on the same course, with a stopwatch, you couldn't tell that he was faster, because maybe you weren't quite accurate with the stopwatch? No, you could easily tell, because the tiny difference in the stopwatch pressing would be overwhelmed by the fact that he is twice as fast as I am.
Similarly with the tire tests. The differences between tires, surprisingly, were very large. Whatever small noise got introduced by stopwatch pressing was overwhelmed by the large measured differences between slower tires and faster ones. On Tue, Aug 7, 2012 at 5:05 AM, Robert Zeidler <zeidler.rob...@gmail.com> wrote: > Unless you can guarantee no variance in wind speed or direction, however > slight, or that the finger depressing the stop watch button at the exact > same second, every single time, just to cite two of many variables, what you > have is a Boy Scout Merit Badge project, not anything remotely resembling > real research. > > Sent from my iPad > > On Aug 7, 2012, at 3:06 AM, Philip Williamson <philip.william...@gmail.com> > wrote: > > On Monday, August 6, 2012 5:16:03 PM UTC-7, z-man wrote: >> >> Not talking about a few centimeters. That's never even been suggested. I'm >> talking about 12 or 20 mm bigger. > > > I missed the antecedent for this. > >> >> >> You're not going to determine what rolls faster by rolling down a hill and >> measuring with a stop watch. > > > I can't think of another method to rank two rolly things except by rolling > them, timing the speeds, and comparing the results. > > Genuinely puzzled, > Philip > biketinker.com > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/rbw-owners-bunch/-/pBCUUB9POcEJ. > To post to this group, send email to rbw-owners-bunch@googlegroups.com. > To unsubscribe from this group, send email to > rbw-owners-bunch+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/rbw-owners-bunch?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To post to this group, send email to rbw-owners-bunch@googlegroups.com. > To unsubscribe from this group, send email to > rbw-owners-bunch+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/rbw-owners-bunch?hl=en. -- -- Anne Paulson My hovercraft is full of eels -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
