As to why one uses pointers to pointers: 1  The name of an array usually yields the address of its first element. 2  Even though an array of strings sounds one-dimensional, it is in fact two-dimensional, since strings are character arrays. 3  A function f will need to accept an argument of type t ** if it is to alter a variable of type t *.
How to Use a Clinometer. A clinometer is used to measure angles. This is the method used by foresters to measure the height of a tree. The clinometer only works for measuring height when the observer is standing exactly one chain length away from the tree (66â or 100 links).
The Tallest Tree in the World: Hyperion (115.6 meters/379' 4). Hyperion was discovered on August 25, 2006 by naturalists Chris Atkins and Michael Taylor in a very remote region of Redwood National and State Parks (California, USA) and is believed to be approximately 700-800 years old.