It's About Time C

[bernard]

Just out of curiosity, what is everyone's devices like and how accurate have you gotten them.

I'm not sure how our team's times are, but we're using a pendulum and I've heard its quite accurate. A number of other teams also use pendulums and have won the event at a number of tournaments.

[boomvroomshroom]

Just out of curiosity, what is everyone's devices like and how accurate have you gotten them.

I'm not sure how our team's times are, but we're using a pendulum and I've heard its quite accurate. A number of other teams also use pendulums and have won the event at a number of tournaments.

What would you use besides a pendulum? Has anyone tried making a spring or whatever yet?

[bernard]

Just out of curiosity, what is everyone's devices like and how accurate have you gotten them.

I'm not sure how our team's times are, but we're using a pendulum and I've heard its quite accurate. A number of other teams also use pendulums and have won the event at a number of tournaments.

What would you use besides a pendulum? Has anyone tried making a spring or whatever yet?

Our team considered making a spring clock but the damping is is too much for timing 5 minutes. Can I ask why you want to try something other than a pendulum?

[finagle29]

Spring clocks have the advantage that measuring fractions of a period is extremely easy if you have two metersticks behind the oscillating mass with the zero ends at the equilibrium point.

[bernard]

Spring clocks have the advantage that measuring fractions of a period is extremely easy if you have two metersticks behind the oscillating mass with the zero ends at the equilibrium point.

Wouldn't the damping give it a similar effect as a pendulum oscillating in front of large grid showing degree markings like a protractor?

[elephantower]

Spring clocks have the advantage that measuring fractions of a period is extremely easy if you have two metersticks behind the oscillating mass with the zero ends at the equilibrium point.

Wouldn't the damping give it a similar effect as a pendulum oscillating in front of large grid showing degree markings like a protractor?

i.e. aren't both unworkable? The only way to measure fractional period I've heard is to use an escapement so you have a constant amplitude (you still have to have killer reflexes).

[mogrady]

This Saturday I am heading into Regionals. This whole week has consisted of compiling my binder full of info. Anyone want to share what they put in theirs? Also, links to useful sites would be appreciated

[elephantower]

Sure
Here's my notes page for IAT
https://docs.google.com/document/d/1XmN ... hI-4y8/pub
Pretty bad imo but it won us first (along with our clock of course)

[mogrady]

Sure
Here's my notes page for IAT
https://docs.google.com/document/d/1XmN ... hI-4y8/pub
Pretty bad imo but it won us first (along with our clock of course)

Hey thanks alot man. This was really useful.

[jkang]

i.e. aren't both unworkable? The only way to measure fractional period I've heard is to use an escapement so you have a constant amplitude (you still have to have killer reflexes).

My partner and I don't use an escapement on our device, and we can still get fractional swings close enough to get near perfect scores on our device.