How tiny a spot is the Hubble Deep Field?
A: About 1/2 of the entire sky.
B: About 1/5 of the entire sky.
C: About 1/10 of the entire sky.
D: About 1/50 of the entire sky.
E: The size of President Roosevelt's eye on a dime held at arm's length.
Ans: E: The size of President Roosevelt's eye on a dime held at arm's length.
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The rotation curve of a galaxy is displayed as a plot of
a) gravity vs. distance to galaxy center b) rotation velocity vs. distance from Earth c) period of rotation vs. distance from Earth d) redshift vs. blueshift e) rotation velocity vs. distance to galaxy center
The Sun's magnetic field has been traced out far beyond the orbit of Pluto and even Sedna
Indicate whether the statement is true or false
Impacts of large asteroids on the Earth's surface generally result in
A) localized destruction close to the impact area B) the destruction of most but not all life on Earth C) the formation of Moons D) total destruction of all life on Earth
The "Isaac Newton of electromagnetism" was
A) Faraday. B) Maxwell. C) Schiglegrueber. D) Hertz. E) Einstein.