Questions with the keyword 'ballistics'

• how would you defend the earth against asteroids/comets by ultimatezeus to Dirk, Elise, Janette, Renee, Yusuf . Comments: (No comments so far)
• is it posssible to create a weapon the shoots pure energy? by ultimatezeus to Dirk, Elise, Janette, Renee, Yusuf . Comments: (So far, one comment)
• Is there a way of creating a force field capible of reflecting bulets? by tatch91 to Dirk, Elise, Janette, Renee, Yusuf . Comments: (No comments so far)