7th. The extraordinary conductibility of hydrogen is evident not only when this gas is freely mobile, but also when it is enclosed in the eider down, or in any other sufficiently porous substance.

Autonomous maintenance is defined as a maintenance strategy where machine operators continuously monitor their equipment, make adjustments and perform minor maintenance tasks on their machines. This ...

In 1827, Georg Ohm published a different law, in which current varies inversely with the wire's length, not its square root; that is, ...

Twelve freshly extracted caries-free human third molars (Department of Oral and Maxillofacial Surgery, University Hospital Regensburg) were used for the experiments. These teeth had not been exposed ...