But last Sunday, 82 years to the day that the British executed James Connolly for his role in the Easter Rising against the crown, those who have mounted the longest and bloodiest period of revolution in Ireland said it was time for a change in tactics.
32.
He observed that one could not then use any statements about the such things as " the position and period of revolution of the electron . " Rather, to make true progress in understanding the radiation of the simplest case, the radiation of excited hydrogen atoms, one had measurements only of the frequencies and the intensities of the hydrogen bright-line spectrum to work with.
33.
When it eventually does catch up, Cruithne will make a series of annual close approaches to the Earth and gravitationally exchange orbital energy with Earth; this will alter Cruithne's orbit by a little over half a million kilometres while Earth's orbit is altered by about so that its period of revolution around the Sun will then become slightly " more " than a year.
34.
After 380 to 390 years or so, the kidney-bean-shaped orbit approaches Earth again from the other side, and the Earth, once more, alters the orbit of Cruithne so that its period of revolution around the Sun is again slightly " less " than a year ( this last happened with a series of close approaches centred on 1902, and will next happen with a series centered on 2676 ).
