Home    Bloggers    Blogs    Article Archives    Messages    About Us   
Tw  |  Fb  |  In  |  Rss
Analog Angle

Multimodal Sensing Solves the Water-Drop “Plink” Mystery

Bill Schweber
Rama Murthy
Rama Murthy
1/7/2019 5:07:48 AM
User Rank
High Speed Video Recording
Nice summary. Sphagetti string breaking study is also as interesting.Some interesting insights in the sequence of events could be observed by recording in microsecond intervals as has been reported by MIT recently. That simple dropping (not even explosive bubble) water and Fracture mechanics events need microseconds resolution is a bit surprising.An expert at Philips said a few decades ago that as technology develops exponentially, applications devour them logarithmically. I wonder if such high speed cameras are available at sub $500 cost?

        As for the trivial question to be investigated, how about the same water droplet falling on a hot(100+ DEG C) dry plate? The sound of evaporating water is a plink with a bang.Is that because of the wave front being steeper or travelling faster (due to rapid evaporation) or both or something else? 

 Also how about evaluating the transient response of a tweeter usng high speed camera? Probably we can explain the phenomena of settling time in control systems better if we introduce this in engineering curriculum? Many physics and engineering experiments can be redone using this.


1/16/2019 1:45:33 AM
User Rank
Re: High Speed Video Recording
And this guys, is why science is so important. Haha! I'm just kidding. Honestly, I love the way that you've been able to explore and examine this, just because we can! Now to take the experiment one step further and see if we're able to recreate the "plink" in different volumes and magnitude. That would be something I would honestly want to see being tested!

More Blogs from Analog Angle
As technology evolves and advances, long-established parameters may no longer be relevant or useful, and new ones take their place.
Analog circuits inherently have some inaccuracies; if these exceed the allowable specification, there are three general strategies to dealing with them.
It has to hurt when your released product is cancelled and goes into the dumpster, but should it?
The “down to earth” world of analog components and functions is a reality-based counterweight to the relentless. overhyped views of the direction and impact of technology advances.
Analog, discrete-element filters have served us well for over a hundred years, but maybe we now need to focus education on filters for the GHz world, such as SAW and BAW devices?
flash poll
educational resources
follow Planet Analog on Twitter
Planet Analog Twitter Feed
like us on facebook
our partners
Planet Analog
About Us     Contact Us     Help     Register     Twitter     Facebook     RSS