Select the folder for the game you want to use your NVIDIA card for, and find the .exe for that game (it's usually right in the main game folder). Select it and hit open. Then, under 2. Select the preferred graphics processor for this program: open the drop-down menu and select High-performance NVIDIA processor.
Orion /ori-on/ [2 sylls.] as a boys' name is pronounced oh-RYE-on. It is of Greek origin. Greek mythology: Orion was a mighty hunter, the son of Poseidon, who was turned into a constellation. The Orion constellation contains three of the most conspicuous stars in the nighttime sky.
The word nebula is Latin for mist or cloud, and the term planetary nebula is a misnomer that originated in the 1780s with astronomer William Herschel because when viewed through his telescope, these objects resemble the rounded shapes of planets.