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Do you think we'll have to look in other galaxies to find intelligent life, or might there be any closer to us?
Subject:
Astronomy
Topic:
General Astronomy
Posting ID:
181217
OTA ID:
103139
Why the Big Bang happened or occurred?
Why the Big Bang happened or occurred?
Subject:
Astronomy
Topic:
General Astronomy
Posting ID:
195531
OTA ID:
104119
Properties of Electromagnetic Radiation and its Behavior with atmosphere
Understanding the Electromagnetic radiation(EM wave): 1. Which of these is constant for all types of electromagnetic radiation in space? a. wavelength b. speed c. energy d. frequency e. amplitude 2. Light waves differ fundamentally from water or sound waves because: a. they have many different wavelenghts. b. they do not require a material medium for transmission. c. they all have the same energy. d. the energy of all light waves is constant. e. they can only travel at one speed, regardless of the medium. 3. Which form of electromagnetic radiation would be blocked in the stratosphere by ozone? a. visible light b. infrared c. microwaves d. ultraviole... click for more
Subject:
Astronomy
Topic:
General Astronomy
Posting ID:
197888
OTA ID:
106217
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