I will never understand how planets hang in the air

MountainRa said:
I don’t even understand how TV signals travel through the air and end up as a picture in my living room much less how planets hang in the sky.
Click to expand...
Electromagnetic energy can travel through a vaccum.
If it could not, the sun's heat and light would not reach us here on earth.
Radio waves and X rays are other forms of electromagnetic energy.

Sound waves are different. They are transmitted by vibrating particles.
That's why they say in space, no-one can hear you scream.

Additional - as for ending up as a picture in your living room - energy can be changed from one form to another and that is what your radio or TV is designed to do.
 

MountainRa said:
I don’t even understand how TV signals travel through the air and end up as a picture in my living room much less how planets hang in the sky.
Click to expand...
Radio waves are picked up by your television and converted to assembled pixels. They are the same waves your radio picks up. The wireless telegraph was inspiration for radio.
 
I heard that the static on our old TV screens was leftover from the Big Bang.

Time confuses me, if time goes faster for astronauts that just circle a little way above the earth, how slow is time in the center of the earth?
 

Paco Dennis said:
There is gravity everywhere. It gives shape to the orbits of the planets, the solar system, and even galaxies. Gravity from the Sun reaches throughout the solar system and beyond, keeping the planets in their orbits. Gravity from Earth keeps the Moon and human-made satellites in orbit.

Hall 2000 (Google)
Click to expand...
Of course there is gravity everywhere.
Us old people are well aware of gravity.
 
The gravity of the sun holds the planets in their orbit and keeps it positioned in their ecliptic order. There’s another part to this rule, but I have forgotten it. Too many moons have risen since my college days.
 
I can explain in very simple terms for those of us who aren't science-savvy:

They hang in the air the same way that voices travel through the air when you're talking on the phone.

Yup. IOW, just take it on blind faith. It's what I do and has made my life so much simpler :ROFLMAO:

Now, just in case y'all think I'm a complete doofus, before I retired the first time (in 1990), I designed digital long distance circuits at a major telecommunications company. Sure did. And never ever took a customer out of service unless they wanted to be and never ever missed a due date to get a customer in service. Funny how that works:rolleyes:
 
Georgiagranny said:
I can explain in very simple terms for those of us who aren't science-savvy:

They hang in the air the same way that voices travel through the air when you're talking on the phone.

Yup. IOW, just take it on blind faith. It's what I do and has made my life so much simpler :ROFLMAO:

Now, just in case y'all think I'm a complete doofus, before I retired the first time (in 1990), I designed digital long distance circuits at a major telecommunications company. Sure did. And never ever took a customer out of service unless they wanted to be and never ever missed a due date to get a customer in service. Funny how that works:rolleyes:
Click to expand...
I respectfully submit that your analogy is not exactly accurate.
 
I read that the earth is held up by elephants standing on the backs of turtles, but I think that was pre-science.
 
Been There said:
The gravity of the sun holds the planets in their orbit and keeps it positioned in their ecliptic order. There’s another part to this rule, but I have forgotten it. Too many moons have risen since my college days.
Click to expand...
The other part is that without gravity, the planets would just fly off into space, away from the sun.

So, planetary orbits are caused by the interaction between flying away and being pulled back by the sun's gravity.
 
Paco Dennis said:
There is gravity everywhere. It gives shape to the orbits of the planets, the solar system, and even galaxies. Gravity from the Sun reaches throughout the solar system and beyond, keeping the planets in their orbits. Gravity from Earth keeps the Moon and human-made satellites in orbit.

Hall 2000 (Google)
Click to expand...
A witty piece of graffiti that I remember from my student days: "Gravity is a myth, the Earth sucks!"
 
NorthernLight said:
The other part is that without gravity, the planets would just fly off into space, away from the sun.

So, planetary orbits are caused by the interaction between flying away and being pulled back by the sun's gravity.
Click to expand...
Isn’t that what I wrote, only the words are a little rearranged, but not to the point where the meaning or logic was changed.
 
Georgiagranny said:
Duh. Lighten up. It's good for your digestion.

Facetious: treating serious issues with deliberately inappropriate humor; flippant
Click to expand...
I am sorry that you took my post as being personal. It wasn’t meant that way. I thought my post would produce a debate, which is healthy behavior. However, I find your reply offensive, but that happens from time to time on any forum. From here on, I will place you on ignore and then my digestion will get better. Thanks for the suggestion, although I never had a digestion problem. I don’t get into back and forth in kind comments. Doing that has never produced a winner of the wits.
 
You must log in or register to reply here.

Back
Top