The timbers that closed the recovered end of the boat had been removed in antiquity when it was abandoned, but much about its original shape could be deduced.
The published frequency-response graphs for the D36A and D36B Pro are identical. The size and shape of the grilles make it unlikely that these two graphs are accurate.
We first saw the lights about half a mile away and as we got closer we realized that the lights were hovering just over the tree line attached to a dark boomerang or triangle shape.
"The children who played with puzzles performed better than those who did not, on tasks that assessed their ability to rotate and translate shapes," Levine said in a statement.