The mirrors for X-ray telescopes are the same shape as those of optical reflectors.
Indicate whether the statement is true or false
Question 2
Why is a dense cloud more likely to produce an elliptical galaxy than a spiral galaxy?
A) The higher density of gas has a stronger force of gravity, and therefore the cloud collapses more quickly.
B) The thickness of the dense cloud prevents a disk from forming.
C) The higher gas density forms stars more efficiently, so all the gas is converted into stars before a disk can form.
D) The force of gravity can pull the material into a more spherical shape.
E) The more frequent collisions between particles randomize the particle orbits.
Two mechanisms that affect cell shape and movement.
The cranium of a young infant changes dramatically in shape with age. Initially the child has severa
This chart illustrates the “drip down” model of government. In this, politics is formed by the soc
Deconvolution fluorescence microscopy yields high-resolution optical sections th
Optical Illusion
Optical Illusion