Guy builds a thrill ride that spins faster if you aren't scared enough

If amusement park rides don't scare you anymore, this one will speed up if you're too calm.

The Neurotransmitter 3000 is a 7 metre (23 foot) machine that paces itself based on your biometrics.

An ear-clip on the ride measures your heart rate, and muscle sensors measure how tense you are. As it begins to spin you around, the machine detects the numbers and adjusts its speed to match your comfort level.

"So say your heart rate is around 60 bpm, the machine will go full speed...until it goes to about 100 bpm it'll start to slow down and stop completely at above 130 bpm," Daniel de Bruin, the artist and designer behind the machine told Mashable. Read more...