Nice explanation by Pat Gill, I thought the pacing was good. For those of you complaining about the pacing, this is Open University content for those studying for degrees - those of us fortunate enough to have attended a bricks and mortar college recall lecturers pacing delivery too quickly to be able to make notes and comprehend the lecture.
According to wikipedia, the radius of a cesium atom is 265 pm. The circumference is therefore 1.66nm. Multiplying by 9,192,631,770 rotations per second we get 15.3 m/s or 55 km/h or 34 miles per hour. Fast but not highway fast.
@@EastBurningRed although the electron is orbiting the nucleus, we are not mesuring this....we measure its jumping up 1 shell level then dropping back down to the start level, this jumping is happenning 9 billion times per second.... the orbit speed = (light speed c / 137), is so fast it makes quantum cloud😮🎉🎉❤
This video desperately needs volume boosting and equalling between scenes. I can't watch it because some parts are too quiet to hear, even at max volume.