Can wave particle duality be viewed at macroscopic scale ?

[shivaniits]

can wave particle duality be viewed at macroscopic scale...??

ok so far we have discussed the wave particle duality in case of electrons of-course at microscopic level through the
1) interference phenomenon showing its wave behavior
2)photoelectric effect discussing its particle characteristics..!
but we have discussed it at only microscopic level ...can it be possible to view this phenomenon at macroscopic level ...particularly wave behavior ...! let take an example of a car how would we be proving its wave characteristics ...?

 

[audioloop]

actual experimental record 430 atoms.
http://vcq.quantum.at/-the-molecular-octopus-a-little-brother-of-schroedinger-s-cat-.5195.html[/URL]
[url]http://www.nature.com/ncomms/journal/v2/n4/full/ncomms1263.html[/url]

...In our experiment, the superposition consists of having all 430 atoms simultaneously 'in the left arm' and 'in the right arm' of our interferometer, that is, two possibilities that are macroscopically distinct. The path separation is about two orders of magnitude larger than the size of the molecules...

 

[Naty1]

Whether objects heavier than the Planck mass (about the weight of a large bacterium) have a de Broglie wavelength is theoretically unclear and experimentally unreachable; above the Planck mass a particle's Compton wavelength would be smaller than the Planck length and its own Schwarzschild radius, a scale at which current theories of physics may break down or need to be replaced by more general ones.[24]

http://en.wikipedia.org/wiki/Wave-particle_duality#Wave_behavior_of_large_objects