The Harvard College Observatory Computers from c. 1880 into the early 20th century were:
A) the first digital computers.
B) not much different than cash registers.
C) functionally similar to the modern 4- function calculator.
D) a group of women who made important contributions to astronomy.
E) mechanically operated adding machines.
Question 2
Typical stellar spectra appear as:
A) a series of bright, colored lines.
B) an unbroken rainbow of colors.
C) a rainbow, but with some dark lines mixed in.
D) a rainbow with some bright lines on top of the continuum.
E) a very redshifted rainbow due to the expansion of the universe.
Early Goldenrod
(a) The Dmanisi cranium (right) shows similarities to early African H. erectus including the Narioko
Harriet Beecher Stowe’s novel, Uncle Tom’s Cabin, became a staple of the mid-nineteenth-century thea
The early onset of spring melting and the gradual diminution of summer snowpack
College Physics