View Single Post
  #11  
Old Monday, March 08, 2010
The Star's Avatar
The Star The Star is offline
Senior Member
Medal of Appreciation: Awarded to appreciate member's contribution on forum. (Academic and professional achievements do not make you eligible for this medal) - Issue reason:
 
Join Date: Oct 2007
Location: Sargodha
Posts: 420
Thanks: 380
Thanked 448 Times in 216 Posts
The Star has a spectacular aura aboutThe Star has a spectacular aura aboutThe Star has a spectacular aura about
Default

what is meant by expenditure of energy? aircraft which u mentioned will consume solar energy.it can fly forever only if it continues to expend solar energy.
__________________
The color of blood in my veins is green,I am a proud Pakistani.
Reply With Quote
The Following User Says Thank You to The Star For This Useful Post:
Zahara Alvi (Thursday, January 27, 2011)