They were first discovered by Daniel Kirkwood in 1857.
Gaps that are now called kirkwood gaps
kirkwood gaps
Kirkwood gaps are caused by the gravitational influence of Jupiter on the asteroids in the asteroid belt. Jupiter's gravity creates resonant orbits that cause asteroids to avoid specific regions in the belt, creating these gaps.
kirkwood gaps
The concentric gaps in the asteroid belt are known as Kirkwood Gaps. These are regions where the gravitational interactions with Jupiter have cleared out most of the asteroids, creating spaces with fewer objects.
The gaps represented the elements which were not discovered. When the elements were invented, they were placed into these gaps.
He predicted that elements with the predicted properties would be discovered to fill in these gaps.
The address of the Kirkwood Branch Library is: 134 South Kirk, Kirkwood, 61447 0249
the period of an orbiting asteroid would be a simple fraction (like 1/3 or 1/4) of Jupiter's orbital period.
Archy Kirkwood's birth name is Archibald Johnstone Kirkwood.
The address of the Kirkwood Historical Society is: Po Box 220602, Kirkwood, MO 63122-0602
James Kirkwood is 6'.