Sankar’s Helicopter Aerodynamics

I’m really impressed with Professor Sankar’s website on fundamentals of aerodynamics of helicopters. It is often said in the aerospace community that if you understand the aerodynamics of helicopters then you can understand anything. It is really challenging! He has also posted a number of interesting items on aeroacoustics of rotorcraft. I have learned a …

Andrei Nikolaevich Kolmogorov – A Digital Tribute

http://kolmogorov.com The great Academacian Andrei Nikolaevich Kolmogorov, who pioneered turbulence theory and started the Russian school, has fans overseas (big surprise!). I always wanted to create a website with a collection of his pictures, portraits, important articles, and anything else I could find online or off. Someone of course beat me to it! A recommended …

LibriVox – Free Open Audio Books

https://librivox.org/ Many people have kindly volunteered to create their own ‘books on tape,’ much like those we heard as children from our local library. Though tape is gone, we can now hear free digital ones from anywhere in the world. There are some good readers of traditional texts. Most are fictional, and worth listening to …