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Damage to a specimen, or to the air scribe itself, can occur in several ways. Almost always it is due to operator error. The air scribe is very powerful and quite capable of quickly boring into mineralized bone or shell--with dire consequences. The reciprocating, or in-and-out, movement of the tool can actually pull the bit through the specimen in a series of millisecond-long bites that can leave the operator in a panic. The secret is to completely familiarize yourself with surface texture, color, and physical properties of both the fossil and the matrix--these are unique and vary greatly between specimens. Let the machine do the work. Knowledge of texture and color lets you know when to lighten up and pull away, and, for the most part, the movement of the chisel tip without any help except guidance from the operator amt power tools is sufficient to reduce matrix to a fine debris. this is perhaps the most difficult technique to learn because it is human nature to think that force from our own muscles will make the job faster. quite the contrary, the application of too much pressure only ensures that your lab will be filled with an incessant whining, your air scribe life span will be considerably reduced, and you may snap off fairly expensive chisel bits. in addition, because air scribes are so powerful, the bit should never be used as a lever. it is the reciprocating movement of the tip of the bit that effectively breaks apart the rock matrix. wedging the bit into the rock, twisting, or levering off larger chunks not only breaks chisel bits, but also rapidly transforms your air scribe into a useless paperweight. with proper care, common sense, and regular lubrication, a pneumatic air scribe will last for years and will enable you to prepare fossils from nearly any matrix. lab technicians are also finding that air scribes enable them to develop fossils in a way never before available to them, bringing out details of specimens impossible with older, more traditional technologies.

with mapping and routing software installed in each vehicle, fire captains who call out directions can instantaneously receive incident addresses and routing information from the computer-aided dispatch. the map automatically displays the quickest route and re-centers itself when the route goes off the computer screen. as the vehicles near the incident, captains can scan the map on the screen to find the locations of the nearest fire hydrants, as well as any potentially hazardous materials in the area.

the leading suppliers of the standard machines have had to make some major adjustments in production levels, and two companies (jcb in the united kingdom and komatsu, with production facilities in italy) have started manufacturing their products in north america to offset rising costs firm producing machines overseas and importing them to the domestic market. jcb has a new manufacturing facility in pooler, ga. komatsu has opened a new facility for utility vehicle assembly and production in newbury, s.c. back in 1998, only three companies made their machines in north america. today, six out of seven companies are sourcing machines from domestic manufacturing sites. the only company importing standard machines is terex, which acquired fermec in the u.k. from cnh a few years back.