How fast is your reaction time ... to your hand muscles to react in time to catch a falling object? ScienceU campers find out using the "ruler test". If you know the rate of falling objects ...

But how can you assess your reaction time in the comfort of your home? One easy assessment is a well-known experiment known as the "ruler drop test". You'll need the assistance of a family member ...

What: Tests basic reaction time. How: Have a partner hold a ruler vertically a few feet in ... Rest your hands on top of your partner’s. When they drop a tennis ball, try to catch it before ...