Shake table experiments with a 6-story building model placed on seismic base isolation called <i><b><a href="https://en.wikipedia.org/wiki/commons:Category:Earthquake_protector" class="extiw" title="w:commons:Category:Earthquake protector">earthquake protectors</a> </b></i>. Ground accelerations at high frequencies are up to 30g. <a rel="nofollow" class="external autonumber" href="https://www.youtube.com/user/vshustov#p/f/5/IjPiujuF0TA">[1]</a>
<a href="//commons.wikimedia.org/wiki/User:Shustov" title="User:Shustov">Valentin Shustov</a>
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<span class="int-own-work" lang="en">Own work</span>