A bipolar junction transistor (bipolar transistor or BJT) is a type of transistor that uses both electron and hole charge carriers. In contrast, unipolar transistors, such as field-effect transistors, only use one kind of charge carrier.
Google Map of 2017 Total Eclipse in Nebraska. Google Map of 2017 Total Eclipse in Nebraska. (Click to use interactive map) The map above links to an interactive Google map showing the visibility of the Total Solar Eclipse of 2017 Aug 21 in Nebraska.
February 26, 2017: Annular eclipse of the Sun This eclipse will not be visible from North America but can be viewed from the southeastern Pacific Ocean, southern half of South America, southern Africa, and Antarctica. August 7, 2017: Partial eclipse of the Moon. This eclipse will not be visible from North America but can be seen from the western Pacific Ocean, Oceania, Australia, New Zealand, Asia, Africa, Europe, and easternmost tip of South America. August 21, 2017: Total eclipse of the Sun This eclipse will be visible from North America. It will begin at 11:47 A.M. EDT and end at 5:04 P.M. All regions of North America will be able to view a partial eclipse at some point during this time span (exact times depend on specific locations).