i went to their lab at heriot—watt university to see their final stages of testing. that's in the back of the head in the hit device to give us a really good indication of kind of how sensitive the accelerometer is and if we need to maybe alter that or if it's all good to go. would that be kind of the equivalent of the sort of impacts people might be getting in a real—world situation, or are you sort of going beyond that? so what we're doing here, the 60 gs is our threshold impact. what we would do there is put an adult rugby player, or an adult, anyone that's not wearing a helmet, and that is risky and it's dangerous. we want you to be checked out. for this one, you are seeing that movement down, the band of the head similar to when you get whiplash with your head off the ground. godspeed, mr head. three, two, one... that looks pretty dramatic. so you've got the numbers there? we've got the numbers here. you're seeing the impact. so you're seeing the impacts. we are able to count all of your impacts in a traffic light system. 0bviously 9 gs, anything up to 20 at the