Maybe you should have read them. You'd have found that many were not wildly speculative or inaccurate at all. Some veered somewhat off topic, but that's the nature of discussions.

(And if you want to get really picky, the correct answer was simply "Yes", and yet nobody said that, including yourself.)

Also note that one word -- Ibike -- while being a useful answer, doesn't actually look like a useful answer. It looks like somebody started typing and accidentally hit "Post" before they even got started. Your post was better -- at least now we know that Ibike is the name of a company that makes a product that does solve the problem, for the low low price of $499!

I'm pretty good at spotting a headwind on my Bicycle, without instrumentation.

Well now that we've staked out our roles here-- me as the illuminator, and you as the apologist-- let me continue by pointing out that one can buy a wind speed measuring iBike Pro on eBay right now for $100, and that there are a few other options as well with BINs of $200 or less, and a couple more yet that will certainly auction off at very well under $499, and I'd wager, well under $200.

Yes, I realize that if one is poor or cheap, that may be still be out of reach, and that they'd probably be happier speculating online about how to duct tape a McGuyvered pitot tube to a handlebar, but I don't presume that's the case, regardless of how temptingly logical an explanation it would seem.

Will I be an arse-hole my whole life, or just today? I'm hoping just today. :rolleyes:

Pointing out an error that one has made is not "apologizing".

As for our roles, we both seem to be rather ... paternalistic at this point. (Though your giving more details on what the word "IBike" actually meant was indeed illuminating.)

Those kinds of wind speed measurements each have an advantage and a disadvantage. The anerometer style would be able to measure total wind speeds in a 2D plane, so they would pick up the total effect that a side wind that was adding to the front wind might have. The propeller styled one is going to measure the effect in one single direction better. A propeller with a vane behind it to steer it into the wind would be good for gauging the effect of a side wind. Then you could also measure that angle..I've been wondering a lot about how to measure wind speed at low speeds. its easy at high speeds but almost all of the available methods have very big problems at low speeds. To get decent accuracy both for speed and direction at low speed (single digits MPH) it seems to me like you need a very light sensor but that same sensor is probably not going to be so great at higher speeds.. because the superior wind catching ability that serves it well at low speed is going to be a disadvantage at higher speeds.

These kinds of very simple logging applications might be good for the super-low power, inexpensive TI Launchpad MSP430 microcontroller boards.

Ive never used one of these boards, though. They seem to be very good for a certain kind of thing, very low power operation.. For example, I think I have seen devices built with these chips run off of ambient radio waves - no batteries. Free energy.

Can't beat the price. One could build a device that could be able to run off of wind power or stored inertial power alone.

That would be pretty cool. They are having a contest for interesting ideas of things to do with their boards. Ive never done anything with the MSP430 but I can say that TI are a very user-friendly company to deal with. Unlike many big companies they are extremely helpful at answering questions. They will also (depending on what it is) often supply a potential customer free samples of most of their products.

This is their web site.

http://www.ti.com/launchpad