Time delay of speech to travel from moon to earth

In summary, sound cannot travel through the vacuum of space, so any communication between the moon and earth must be done through electromagnetic signals. These signals travel at the speed of light, taking about 2.56 seconds to reach earth from the moon. The distance between the two is about 1.282 light-seconds. Space is not a perfect vacuum, but it is close to perfect. The density of matter in space varies, with intergalactic space being the best vacuum possible.
  • #1
Black Hole
3
0
So if I'm on the moon is there a delay with the communication to earth?

What is the speed of sound over satellites verses copper wires?



Anyone know?, this has been on my mind.

thanks
 
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  • #2
k what ever u are communicating on will travel at the speed of light
so it will take about 2.56 seconds for that signal to reach earth.
 
  • #3
Sound needs matter to travel through. Since the Moon and Earth are separated by the vacuum of space no sound can travel. Hence the saying "in space no one can here you scream". Any communications from Earth to the Moon will be done by sending a electromagnetic signal representing the data (radio, microwave, etc), which travel at the speed of light. Wikipedia tells me that "The average distance from the Earth to the Moon is about 1.282 light-seconds."
 
  • #4
is the vacuum of space really a vacuum or is it the higgs field.
 
  • #5
DaleSwanson said:
Sound needs matter to travel through. Since the Moon and Earth are separated by the vacuum of space no sound can travel. Hence the saying "in space no one can here you scream". Any communications from Earth to the Moon will be done by sending a electromagnetic signal representing the data (radio, microwave, etc), which travel at the speed of light. Wikipedia tells me that "The average distance from the Earth to the Moon is about 1.282 light-seconds."

The proper saying is, "In space, no one can hear you scream unless it is the battle cry of a United States Marine Corps Space Aviator!" - R. Lee Ermey, from Space: Above and Beyond.
 
  • #6
cragar said:
is the vacuum of space really a vacuum or is it the higgs field.

A Vacuum is defined as an absence of matter. Higgs field has nothing to do with it. And while space is NOT a perfect vacuum, it is about as perfect as you can get. The density of matter in space varies depending on how close you are to stars, planets, nebulas, ETC. Inter galactic space (Space between galaxies) is supposedly the best vacuum possible I believe.
 

Related to Time delay of speech to travel from moon to earth

1. How long does it take for speech to travel from the moon to the earth?

The time delay for speech to travel from the moon to earth varies depending on the distance between the two bodies. On average, it takes approximately 1.3 seconds for speech to travel from the moon to the earth.

2. Why is there a time delay for speech to travel from the moon to the earth?

The time delay is due to the distance between the moon and the earth. Sound waves travel at a finite speed, and the distance between the two bodies is about 238,855 miles, causing a delay in the transmission of sound.

3. Is the time delay consistent for all forms of communication between the moon and the earth?

No, the time delay may vary depending on the type of communication. For example, radio waves travel at the speed of light, so the time delay for radio communication between the moon and the earth would be much shorter than the delay for speech.

4. Can the time delay be reduced or eliminated?

No, the time delay for speech to travel from the moon to the earth cannot be reduced or eliminated. This is due to the laws of physics and the finite speed of sound waves. However, advancements in technology have allowed for faster and more efficient communication between the two bodies.

5. How does the time delay affect communication between astronauts on the moon and their counterparts on earth?

The time delay can make communication between astronauts on the moon and their counterparts on earth more challenging. It requires precise timing and coordination to ensure smooth and effective communication. Delays can also cause interruptions or misunderstandings in conversations.

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