Question 1
The conclusion of "No Toshiba computers are unreliable, for we've studied Toshibas for years and never found an unreliable one" is
◦ No Toshiba computers are unreliable
◦ We've studied Toshibas for years
◦ We've found an unreliable Toshiba computer
Question 2
The conclusion of "Penobscot Williams, the new star of television's "You Guessed it Right!" either has a knack for picking weak products to pitch, or manufacturers seek him out to lend credibility to products that could use some promoting. But the latter is certainly not the case. Therefore, he has a knack for picking weak products to pitch" is
◦ Penobscot Williams, the new star of television's "You Guessed it Right!" either has a knack for picking weak products to pitch, or manufacturers seek him out to lend credibility to products that could use some promoting
◦ The latter is certainly not the case
◦ He has a knack for picking weak products to pitch
A star-forming region in the Large Magellanic Cloud.
The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing
Proper Motion of Barnard’s Star
A Star with Three Planets
Spectral Line Motion in Binary Star Systems
Model of a Neutron Star’s Interior