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Author Topic:   New Geocentrist Blunder
Tangle
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Posts: 9489
From: UK
Joined: 10-07-2011
Member Rating: 4.9


Message 9 of 53 (746186)
01-04-2015 4:44 AM


I struggled with this for a while because a helicopter can hover over a fixed point on earth without requiring any lateral movement - even at the equator - and inuitively that's wrong.
I think the trick is to understand that because of friction between the earth and the earth's atmosphere, the air is itself spinning at the same speed as earth, so everything including the helicopter is travelling at the same speed even when apparently stationary in the air.
Once outside the earth's atmosphere an object would need its own lateral movement to 'hover' above a fixed point on earth. I assume satellites achieve geostationary orbit by using gravity effects from earth sun and moon and maybe a kick now and then from its own power?

Life, don't talk to me about life - Marvin the Paranoid Android
"Science adjusts it's views based on what's observed.
Faith is the denial of observation so that Belief can be preserved."
- Tim Minchin, in his beat poem, Storm.

Replies to this message:
 Message 17 by NoNukes, posted 01-06-2015 5:01 PM Tangle has replied

  
Tangle
Member
Posts: 9489
From: UK
Joined: 10-07-2011
Member Rating: 4.9


Message 15 of 53 (746403)
01-06-2015 12:56 PM
Reply to: Message 14 by AZPaul3
01-06-2015 12:44 PM


Re: bee fast
I'm guessing they don't look quite so smart in zero gravity.

Life, don't talk to me about life - Marvin the Paranoid Android
"Science adjusts it's views based on what's observed.
Faith is the denial of observation so that Belief can be preserved."
- Tim Minchin, in his beat poem, Storm.

This message is a reply to:
 Message 14 by AZPaul3, posted 01-06-2015 12:44 PM AZPaul3 has replied

Replies to this message:
 Message 16 by AZPaul3, posted 01-06-2015 1:29 PM Tangle has not replied

  
Tangle
Member
Posts: 9489
From: UK
Joined: 10-07-2011
Member Rating: 4.9


Message 18 of 53 (746428)
01-06-2015 5:44 PM
Reply to: Message 17 by NoNukes
01-06-2015 5:01 PM


Sure but a satellite has to get to that location - fair enough - then get to the speed required to orbit in order to be geostationary, then maintain it over time. My question is how does it get up to that speed? Perhaps the delivery vehicle delivers that also, then vacuum does the rest plus onboard propulsion does the tweaking?

Life, don't talk to me about life - Marvin the Paranoid Android
"Science adjusts it's views based on what's observed.
Faith is the denial of observation so that Belief can be preserved."
- Tim Minchin, in his beat poem, Storm.

This message is a reply to:
 Message 17 by NoNukes, posted 01-06-2015 5:01 PM NoNukes has replied

Replies to this message:
 Message 19 by NoNukes, posted 01-07-2015 12:05 AM Tangle has not replied

  
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