I couldn't make the LED blink building with my breadboard. So I tried out the experiment with an online simulator. The LED does not blink in the simulator as well. Is it because the simulator does not reflect the reality, or I connected it wrong?
The article has 470K resistors and you've used 470 ohm resistors, that's off by 1000:1 (too low). I can't really see what your values are on the breadboard.
The simulator may or may not work, oscillators sometimes need a bit of a whack to get going.
Edit: In this case, it does work when the resistor values are changed.