Blink light

The circuit works, that is good, if you actually built it, you would be disappointed. Why, 1: The leds would appear to be on all the time. Why, the frequency of this circuit is about 1.3 kHz, to see a led blinking it needs to be less than 25 Hz. 2: The Leds only have 8 mA of current flowing through them instead of their 20 mA specification, this might not be enough to illuminate them, the led resistor needs to be around 120 Ohms. In the specifications for the 555 it is recommended that the minimum resistance for R1 & 2 be greater than 1 k Ohm, this would happen anyway to get the frequency down to less than 25 Hz.