Fluid Mechanics video lectures


In a previous post we selected some resources on fluid dynamics. In that post we suggested the videos from the National Committe for Fluid Mechanics (notes on the website) that date to the 1960’s and is an excellent exposition to fluid mechanics. We share them below following a very clear demonstration of Euler’s equation and Bernoulli’s integral:

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Sound of the Moving Earth


What do you think an earthquake would sound like if you could hear it?

Here’s a sample (opens in a new tab).

The audio was generate by processing seismic data.

More samples are available on from the source where you can also find the corresponding spectrograms, (i.e. the representation of the frequency content of the signal and how it varies in time).

via Zhigang Peng @ Georgia Institute of Technology

Credit: Peng, Z., C. Aiken*, D. Kilb, D. Shelly, B. Enescu (2012), Listening to the 2011 magnitude 9.0 Tohoku-Oki, Japan earthquake, Seismol. Res. Lett., 83(2), 287-293, doi: 10.1785/gssrl.83.2.287. , and Kilb, D., Z. Peng, D. Simpson, A. Michael and M. Fisher* (2012), Listen, watch, learn: SeisSound video products, Seismol. Res. Lett., 83(2), 281-286, doi: 10.1785/gssrl.83.2.281.

As a follow-up here’s a nice video from USGS

Links – Have Fun Typing & Learning Vi/Vim Shortcuts


Vim Adventures – navigate the Vi/Vim land by learning Vi/Vim shortcuts

ZType – Typing (shooting) Game

Every Classroom Should Have This Infographic


Mindset: The New Psychology of Success by Dr. Carol Dweck is a must read for every parent, teacher and student. As a matter of fact, it should be read by everyone.

Parents and teachers should stop labeling students as “smart” or “dumb” or as “good” or “bad”. Instead they should be taught that everyone is capable of anything one puts his or her mind to.

Moreover, I think the two mindsets should explained to every student and the infographic be hanged in every classroom and house everywhere as a reminder of the two mindsets. Maybe also assign the book for reading as part of the reading list? Continue reading

One Must-Read Book For Everyone


If there’s one book that I was to recommend this year and every year it would be The Art of Mental Training by DC Gonzalez.

If you are strong, happy, successful, etc.. or, especially upset, depressed etc… do yourself a favor and read this book.

And If you know someone who is in a tough time in their life I recommend that you gift them this book. Above all be there to support them.

The book sums up, in 25 short lessons, several other books like:

Mindset, Carol Dweck
Emotional Intelligence, Daniel Goleman

Selected Resources on Fluid Mechanics


Below is short list of selected resources if you’re studying (advanced) fluid dynamics.

If you’re getting started with fluid mechanics at an advanced level I recommend you the following select resources. I also invite you to check previous posts on fluid dynamics most of which are videos or images of amazing fluid flows.

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NASA Launches a Rocket from an Airplane to deploy CYGNSS


On December 15, 2016 NASA successfully launched 8 small satellites by releasing a rocket from an airplane. The 8 satellites form the Cyclone Global Navigation Satellite System (CYGNSS) for tracking and studying the inside of tropical storms and hurricanes.
This step of releasing a rocket from an airplane is part of cutting costs.