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+:: Hoon 101 - Week 4
+:: ~bannum-magtus || s@p7.co.nz
+::
+|=  n=@
+^-  @
+=<  (wrrrm n)
+|%
+::
+:: the atom made a 'clink' as it fell into the hole
+++  clink
+  |=  [a=@ b=@]
+  ^-  ?
+  =(0 (mod a b))
+::
+:: there was a 'clunk' as the atom fell multiple times
+++  clunk
+  |=  a=@
+  ^-  ?
+  ?|
+    (clink a 3)
+    (clink a 5)
+  ==
+::
+:: a 'bzzrp' was heard as certain atoms were vapourised
+++  bzzrp
+  |=  a=@
+  ?:  (clunk a)
+    a
+  0
+::
+:: 'wrrrm' was all you could hear as the machine started up
+++  wrrrm
+  |=  x=@
+  ^-  @
+  %-  roll
+  :_  add
+  %-  turn
+  :_  bzzrp
+  (gulf 1 x)
+--