Build Your Own Solar Coaster
Super fun Jurassic Park themed project and write-up from instructables user rabbitcreek.
The iconic scene from Jurassic Park came in the car where the glass of water resonated with the approaching footsteps of the T-Rex (spoiler). The original scene was done according to web blogs by someone carefully boinging a musical string attached to the support for the glass–they had tried other methods but this was the only one they could get to really work. There you are perched with your glass on the beach with your solar charging bluetooth coaster about to dramatize the approach of humanoid behemoths on your piece of sand (gargantuan mortals seem to abound these days and with cheaply constructed floors maybe this device is unnecessary but getting water to shake with sound is difficult in small packages… ) so you flip on some base heavy sound cloud channel and watch in horror as the water surface stirs to the beat! Well, underwhelming to be sure so you just relax and enjoy the sound from one of many bluetooth speakers that now fill up the world.