sinkhole in guatemala 2010 just happen

本帖最後由 Guy 於 2010-6-3 05:02 編輯

OMG

looks like endless drop

First law: Every body remains in a state of rest or uniform motion unless it is acted upon by an external unbalanced force.

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2^#

發表於 2010-6-3 05:17 | 只看該作者

http://www.cnn.com/2010/WORLD/am ... html?iref=allsearch

The 20-meter (about 66 feet) diameter sinkhole is about 30 meters (about 100 feet) deep.

First law: Every body remains in a state of rest or uniform motion unless it is acted upon by an external unbalanced force.