venus

[jtkirk1701]

if you could speed up the rotation of venus say give it a 30 hour day. what effect would that have on the planet?<br />

 

[silylene old]

I think Venus would become a lot windier (it already is windy!). <div class="Discussion_UserSignature"> <div class="Discussion_UserSignature" align="center"><em><font color="#0000ff">- - - - - - - - - - - - - - - - - - - - - -</font></em> </div><div class="Discussion_UserSignature" align="center"><font color="#0000ff"><em>I really, really, really miss the "first unread post" function.</em></font> </div> </div>

 

[eric2006]

Maybe it would give it a chance to cool down.

 

[Swampcat]

All the Cathars (anyone remember them?) would have to buy new watches. <div class="Discussion_UserSignature"> <font size="3" color="#ff9900"><p><font size="1" color="#993300"><strong><em>------------------------------------------------------------------- </em></strong></font></p><p><font size="1" color="#993300"><strong><em>"I hold it that a little rebellion now and then is a good thing, and as necessary in the political world as storms in the physical. Unsuccessful rebellions, indeed, generally establish the encroachments on the rights of the people which have produced them. An observation of this truth should render honest republican governors so mild in their punishment of rebellions as not to discourage them too much. It is a medicine necessary for the sound health of government."</em></strong></font></p><p><font size="1" color="#993300"><strong>Thomas Jefferson</strong></font></p></font> </div>

 

[commander_keen]

If you are expecting it to become an earthlike planet then I think you are headed for disappointment. There is still the extremely thick cloud cover that you have to worry about, and its closeness to the sun.

 

[newtonian]

jkirk1701 - Not as much of an effect as changing rotation speed on earth would have!<br /><br />The surface of Venus has little day-night temperature variance despite its long rotation period of 243 days.<br /><br />However, above 100 km Venus has a day-night temperature variance which a shorter day would naturally reduce.<br /><br />BTW, Venus (and Mars) do not have a counterpart to Earth's thermosphere, i.e. Mars and Venus do not have a hot upper atmosphere section. Earth's upper atmosphere heat is due to absorbtion of solar radiation, notably by ozone.<br /><br />We can be thankful for the protection of ozone, despite man's destruction (e.g. by pollution of chloro-fluoro-carbons) of upper atmospheric ozone.<br /><br />Venus also had a runaway greenhouse effect, and has sulfuric acid, etc.

 

[nexium]

Earth averages about 90 degrees f = 50 degree c cooler at the poles compared to the equator, so perhaps the poles of Venus would cool a bit. The faster rotation might scatter the sulpheric acid layers in the atmosphere of Venus. What else would that do besides lower the ph most everywhere on Venus? 1% sulpher trioxide in the atmosphere near the surface of Venus? Neil