So this Wiki ( https://en.wikipedia.org/wiki/21-gun_salute )seems to indicate that the meaning of the event is not derived from the number of cannons as much as the intervals between salutes. If you do a Crtl+F and search "interval" on the page it never speaks of what ten second intervals means (which is what the OP is a video of). If 10 second intervals don't have a meaning perhaps we are to look at what the sum of the 2 extra abnormal numbers gives us? If it normally would have been THREE second intervals but they added 7 seconds for a total of 10 what does 10+7 bring us to?
So this Wiki ( https://en.wikipedia.org/wiki/21-gun_salute )seems to indicate that the meaning of the event is not derived from the number of cannons as much as the intervals between salutes. If you do a Crtl+F and search "interval" on the page it never speaks of what ten second intervals means (which is what the OP is a video of). If 10 second intervals don't have a meaning perhaps we are to look at what the sum of the 2 extra abnormal numbers gives us? If it normally would have been THREE second intervals but they added 7 seconds for a total of 10 what does 10+7 bring us to?
Check again, it's 9 seconds for Biden.