./episode_18.sh
Our envy always lasts longer than the happiness of those we envy.
Hey friends!
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Lattice Boltzmann Method Simulation
In contrast to traditional computational fluid dynamics (CFD) approaches based on the conservation of macroscopic quantities like mass, momentum, and energy, the Lattice Boltzmann method (LBM) models the fluid by the kinetics of discrete particles that propagate (streaming step) and collide (relaxation step) on a discrete lattice mesh. Due to its particular nature, LBM has several advantages, such as dealing with complex boundaries, incorporating microscopic interactions, and parallelisation of the algorithm.
Pendulum Waves
Fifteen uncoupled simple pendulums of monotonically increasing lengths dance together to produce visual traveling waves, standing waves, beating, and random motion. One might call this kinetic art and the choreography of the dance of the pendulums is stunning! Aliasing and quantum revival can also be shown.
How it works:
The period of one complete cycle of the dance is 60 seconds. The length of the longest pendulum has been adjusted so that it executes 51 oscillations in this 60 second period. The length of each successive shorter pendulum is carefully adjusted so that it executes one additional oscillation in this period. Thus, the 15th pendulum (shortest) undergoes 65 oscillations. When all 15 pendulums are started together, they quickly fall out of sync—their relative phases continuously change because of their different periods of oscillation. However, after 60 seconds they will all have executed an integral number of oscillations and be back in sync again at that instant, ready to repeat the dance.
Jim Cantrell - Elon Musk, Working for SpaceX & Rocket Science
If you want to hear about the story how Elon approached Jim to build SpaceX, make sure to check out the podcast!
Jim Cantrell is the former VP of Business Development at SpaceX and founder of several entrepreneurial start-ups, including Vector Launch developing affordable small launch capabilities aimed at the Micro Spacecraft market & Stratspace with a long history in pivotal technical and financing roles in the aerospace industry.
How Bees Stay Cool On Hot Summer Days
When it gets hot inside the nest, bees use their wings as fans to push hot air out and allow cooler air to move in.
"Over millennia, social insects such as bees have evolved to harness and exploit flows and forces and collectively solve physiological problems such as mechanical stabilization, thermoregulation and ventilation on scales much larger than the individual," said L Mahadevan, de Valpine Professor of Applied Mathematics.
Upcoming Podcast
Friday Episode
Coming Friday at 6pm CET, I will release a new podcast with Veljko Krunic who is an independent consultant and trainer specializing in data science, big data, and helping his clients get actionable business results from AI. He holds a PhD in computer science from the University of Colorado at Boulder and an additional degree in engineering management from the same institution. Veljko consulted with or taught courses for five of the Fortune 10 companies (as listed in Sept 2019), many of the Fortune 500 companies, and a number of smaller companies, in the areas of enterprise computing, data science, AI, and big data.
Topic: Succeeding With AI
Early Access: https://patreon.com/theengiineer
Went Live This Week
A new podcast with David Movitz went live this week! David Movitz is a mechanical engineer with a passion for leadership, problem solving and teamwork. While studying at the University of Iowa, he founded the Iowa Formula racing team, a student organization that designs, manufactures, and races an electric formula race car for international competitions. As Team Principal, he grew the team to over 50 members and led them to compete within their first year, an accomplishment few teams have achieved.
Topic: Building A Formula Student Team 🏎️
Early Access: https://patreon.com/theengiineer
Visualize Ideas
"Cogito ergo sum." (I think, therefore I am.)
– René Descartes
Follow me on Instagram to see more of my designs! You can order my canvases my sending me a DM on my socials.
Book of the Week
Python Workout - 50 Ten-Minute Exercises
The only way to master a skill is to practice. In Python Workout, author Reuven M. Lerner guides you through 50 carefully selected exercises that invite you to flex your programming muscles. As you take on each new challenge, you'll build programming skill and confidence. The thorough explanations help you lock in what you've learned and apply it to your own projects. Along the way, Python Workout provides over four hours of video instruction walking you through the solutions to each exercise and dozens of additional exercises for you to try on your own.
Favourite Animation
Meme of the Week
That’s life.
Closing Remarks
If you have any wishes for video topics, you can submit them in this form. Apart from that you can always reach out to me via Twitter or Instagram or LinkedIn, so let’s connect!
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See you next week and in the meantime, make sure to keep engineering your mind!
Jousef