Tell us about yourself!
actually, no. When capacitors are connected in parallel, the total capacitance is the sum of the individual capacitors' capacitances. If two or more capacitors are connected in parallel, the overall effect is that of a single equivalent capacitor having the sum total of the plate areas of the individual capacitors.
I should mention with my design the timing isn't exact from one beep to the next. so long as it is programmed to be sufficiently long. there is enough error in the resistors, capacitor, oxford comma and power source to create a little bit of randomness to the actual timing of the pulse. (Also: this page explains briefly about capacitors in parallel or serial. http://www.allaboutcircuits.com/textbook/direct-current/chpt-13/series-and-parallel-capacitors/ )
I made one like this forever ago. still use it today! every time it beeps I lose the game!
Rubik's Cube of Unusual Size