20. Applications of Fourier Transforms

[@pensil9625]

By far the best course on signals and systems. Dennis Freeman is an amazing teacher

[@juliasmith1182]

Very patient.

[@oscargr_]

You make a master out of nickel. (Not aluminium) They purposely make the pitch bigger by a factor of 1.005 (or there about) to account for shrinkage during the embossing. The shrinkage isn't nearly the biggest problem.

[@dumky]

I wish the professor would have run the far field picture of DNA and processed it with inverse Fourier transform. What does that look like?

[@byronwatkins2565]

The X-rays were NOT coherent; however, the DNA was frozen into a coherent crystal. It turns out that crystals can interact only with very specific wavelengths so that all other wavelengths pass straight through. Coherent X-rays from the APS at Argonne, the CCXS at MIT, etc. are only very recently available.

[@tricky778]

I wonder if he meant collimated?

[@byronwatkins2565]

@@tricky778 Could be.

[@sanjaybhatikar]

What an awesome lecture!

[@prashantbhatt4100]

informative lecture

[@juliasmith1182]

What year of study is this aimed at?

[@mitocw]

2nd year of study. See MIT EECS website for curriculum roadmaps: www.eecs.mit.edu/. Best wishes on your studies!

[@tedsheridan8725]

I love these lectures but they should really put a low-pass filter on his mic for when he smacks his lips.

[@albinreny]

Cool

[@ull893]

My favorite too $$$$$$.Thank you.

[@poochie1480]

That's y ama footballer

[@sawomirk4273]

Awsome ! ;)

[@albertocruz4971]

Just amazing!!