Crevasses often have vertical or near-vertical walls, which can then melt and create seracs, arches, and other ice formations. These walls sometimes expose layers that represent the glacier's stratigraphy. Crevasse size often depends upon the amount of liquid water present in the glacier. A crevasse may be as deep as 45 metres, as wide as 20 metres, and up to several hundred metres long.
When in outdoor public spaces where you are legally present, you have the right to capture any image that is in plain view (see note below about sound recording). That includes pictures and videos of federal buildings, transportation facilities (including airports), and police officers.
Using a Video Recorder (Including Cell Phones) With Audio Capacity. 1  You have the right to videotape and audiotape police officers performing official duties in public. It is not a violation of the Pennsylvania Wiretap Law to do so. That means you can record an officer during a traffic stop, during an interrogation, or while he or she is making an arrest. You can record people protesting or giving speeches in public. The Pennsylvania Wiretap Law does make it illegal to record any electronically transmitted conversation.