Author Question: If a new wave arrives on shore every two seconds, then its frequency is 2 Hz. Indicate whether ... (Read 64 times)

Redwolflake15 · **on:** Jul 27, 2018

If a new wave arrives on shore every two seconds, then its frequency is 2 Hz.

Indicate whether the statement is true or false

Question 2

Briefly explain the Fermi Paradox, namely the paradox of the question Where are the aliens?

What will be an ideal response?

batool · **Reply #1 on:** Jul 27, 2018

Answer to Question 1

FALSE

Answer to Question 2

If we survive and decide to become interstellar travelers, we are probably capable of establishing a galactic civilization within a few million years (a time period very short compared to the age of the galaxy). Because our solar system formed some five billion years after the galaxy formed, it therefore seems likely that other civilizations should have evolved and developed interstellar travel long ago and established a galactic civilization of their own. The paradox is that we have not yet had any contact with such civilizations.