Recent content by billm

  1. billm

    The 41 second clock failure syndrome

    I've not got an answer to your 41 second problem but it may be not dissimilar to the Thursday effect for grandfather clocks. This causes longcase clocks to stop on Thursdays* i.e. when the pendulum is the same length as the (hanging) weights causing a transfer of energy to the (swinging) weights...
  2. billm

    Shower Mixer Taps: Physics & Maths Explained

    Can anybody advise where I might find details of the physics and maths of shower mixer taps. My shower behaves like a second order control system (damped temperature oscillation as a result of a step temperature change). How does this work?