Half a croissant, on a plate, with a sign in front of it saying '50c'
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science: spacecraft: propulsion: centripetal
Ideas are sorted alphabetically.
Ideas in bold have been created this week.
 (+1, -4)  Bolo "AntiGravity" Device 
   Centripetal Space Junk Drive 
 (+3, -2)  Circular Spaceship Accelerator 
 (+2)  Earth Rotational Counterbalancer 
 (+12, -5)  Flywheel Rocket 
 (+2)  Helical Spacecraft Trajectory For Artificial Gravity 
 (+8, -5)  Ultracentrifugal satellite launcher 
 (+4)  Xenon Thruster Slingshot / Space Station 


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