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Jun
20
awarded  Yearling
Feb
24
comment Sound Wave Propagation: Why HF are more specular while LF are more omni
I guess we will always have at least a size of the source (with corresponding angles). To show that the source is important, one can take HF case, increase the full system (including wavelengths), and obtain exactly the same angles, but the bigger scales. There will be no difference in 'sphericality'. If HF case is less spherical, than LF, go upstream to the source to discover different $\lambda/L$ ratio; and we will always have an implicit scale we compare with. Even HF/LF means small/big $\lambda$, but small with respect to what? With respect to the (unstated) $L$.
Feb
19
revised Sound Wave Propagation: Why HF are more specular while LF are more omni
added 269 characters in body
Feb
19
answered Sound Wave Propagation: Why HF are more specular while LF are more omni
Feb
17
comment Three Pendulum Rotary Harmonograph
Code mostly came from Saturnix, I just added the pad :-)
Feb
16
awarded  Teacher
Feb
14
awarded  Editor
Feb
14
revised Three Pendulum Rotary Harmonograph
added 45 characters in body
Feb
14
answered Three Pendulum Rotary Harmonograph