How Long Is a Hundred Milliseconds?

In the seventies in germany, where they just had a lot of athletes start. And then basically they came to the conclusion in this research, that most of these athletes responded within 120 milly seconds. They were like, ok, if we then put the threshold to 100 milly seconds,. that would insure that we don't pysically exclude these atleats from just being so fast. So this is where we get our number, a hundred milly seconds, a tenth of a second. If you want an idea of how quick that is, we're going to play two sounds. Let's do it again. That's how long a hundred milli seconds takes.