Remarkable Rocks are naturally sculptured formations precariously balanced atop a granite outcrop. The rock appears to be balanced precariously on an outcrop of granite ledge. Even the boarding houses were precariously placed on the mountainsides. Known as knife-edge equilibrium because the equilibrium "rests precariously on" the exact value. When he comes to, he finds Julia precariously balancing on a cracking window. Doc encourages Clara to join him, but she falls, hanging precariously by her dress. Precariously balanced log traps, can be rolled downslope, crushing enemies. Drunken ghosts swing precariously from the chandelier above the table. Greg Ehrbar of Mouse Tracks says the song "veers precariously into politically incorrect territory". Sydney and Irina battled a final time, precariously balanced on a skylight. The leaders had to precariously coast around to the finish line. The department of Amazonas possesses a great past that is still precariously evaluated and spread. Lacking both friends and money, he lived precariously. They saw it so precariously, but the reason was never mentioned. It pictured children zoo visitors riding, somewhat precariously, on Jumbo's back.