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General help
The MGC Chatbox Evo is really easy to use

You can :
  1. Send chats : you just have to enter the text in the dedicated input field and then to validate it by pushing the return key ou by clicking on the OK button.
  2. Format the chats :
  3. once you un-collapse the chatbox formatting toolbar by clicking on the BBCode button, you have access to different formatting options for your chats. You can format a chat by selecting a part (or the totality) of it and then select one of the buttons/list. You can also add empty formatting tags by selecting nothing and clicking one of the buttons/menu thus allowing you to add the chat text afterwards between these tags.*
  4. Access to the different channels : you can have access to different channels restricted to only some usergroupds or for specifics use of the chatbox. The different channels are accessible from the buttons on the left of the chatbox.*
  5. Edit your chats (or others chats) : the edition of a chat can be done by a simple double-click on it.*
  6. Use specific commands : some commands can be accessible in the chatbox depending on the will of the administrator(s) of your forum. These commands let you execute specific actions of formatting, management, etc... You will herebelow the information on the command which are accessible to you. You must notice that you are not forced to use the command prefixes (/command_name) when you use them in the channel they are attached to (except in the general channel).*
* : Depending on the settings chosen by the administrator(s) of the forum, you might not have access to all these features.
Results 1 to 4 of 4
  1. #1
    Junior Member bharath's Avatar
    Join Date
    Aug 2008

    What's the gravities effect on the speed of a sattelite circling the earth?

    Does it slow it down speed it up or stay the same.

  2. #2
    Member rowlfe's Avatar
    Join Date
    Mar 2008
    No change. The satellite is in a state of balance, equilibrium, in an ideal world. What WILL change is air friction in the real world. Even at many hundreds of miles, there IS a small number of air molecules in space, which will have a cumulative effect from DRAG. So, in the real world, all satellites slow down and descend because of air friction. What changes is the RATE of descent. The closer to the earth, the more air molecules per cubic foot, the more air resistance. It is this drag in space which is why communications satellites at 32,000 miles need thrusters so they can do "station keeping" to keep the orbit stable to hold the position over the land below.

  3. #3
    Senior Member Paul's Avatar
    Join Date
    May 2008
    Both. It speeds up towards perigee and slows down towards apogee.

  4. #4
    Member Donald's Avatar
    Join Date
    Apr 2008
    If it's orbiting the earth, gravity is holding the satellite in place. Without gravity, the satellite would just fly off into space.

    However, if the satellite is spinning downward toward the earth (ultimately to crash), then the stronger the gravity, the faster and at greater speed the satellite will descend.

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