Then why not making cheap electric cars that make exactly the same sound? I mean, just attach a stereo wired to a embedded chip that makes the length of the sound wave depending on the speed of the car.
Want a startup idea? I just gave you one :-)
It hinted that people will take a similar path as ringtones and start using music etc.
You just need the tach reading, the current level and derivative of motion should allow a simple micro controller select the right samples.
Funny how you did that with no controlled subjects. Have groups that only listen to white noise, random chatter from a busy restaurant, maybe the rumble of a subway train. Even groups who listen to nothing at all, and just sit idle for a few minutes.
Also, I buy that sexual arousal increases testosterone levels, which would mean high levels of testosterone are correlated with sexual arousal. But I don't know if raised levels of testosterone necessarily indicates sexual arousal.
It doesn't. Test can be raised through exercise, for example.
Apropos the article, I think this correlation doesn't prove causation.
A developer friend of mine, who is much younger and less 'attached' recently bought a new 2008 Subaru Impreza WRX STI. Fantastically fast, pretty expensive compared to most mainstream cars and sure to get attention wherever he drove.
However, his first girlfriend post car purchase didn't even have a clue what a WRX or STI even was when asked and therefore wasn't impressed at all with his ride. He was slightly disappointed.
The lesson here is to buy something that is shiny, flashy and sure to attract females (think Mercedes, BMW, Porsche), not an understated best bang-for-your-buck pocket rocket like the STI.
