Last year, the Optoma HD25 made a splash in the sub-$1000 home theater projector market. This year, Optoma has released the HD26, another sub-$1000 home video projector, as the next iteration in its inexpensive home theater line-up.
The definition of tempestuous is something very stormy or characterized by great conflict. When a couple argues all the time, their relationship is an example of a tempestuous relationship.
Streamwise vorticity is the amount of horizontal vorticity that is parallel to storm inflow. Storm inflow is the velocity of the low- evel wind moving toward a thunderstorm. Helicity is the amount of streamwise vorticity that is available to be ingested by a thunderstorm.