Fix disfluencies in the sentence: On the contrary, a bomb is a compact object so the neutrons need not travel far to hit another fissionable atom which made it so powerful.
The bomb is a compact object so the neutrons cannot escape the bomb.

• I think this is a good example of a sentence that is not a sentence. – user122798 Feb 11 '16 at 15:43
• @user122798 I think it is a good example of a sentence that is not a sentence. – user122798 Feb 11 '16 at
The neutron is a compact object so it can be easily detected by the detector.
The neutron is a compact object so it can be easily detected by the detector.
The neutron is a compact object so it can be easily detected by the detector.
The neutron is a compact object so it can be easily detected by the detector.
The neutron is a compact object so it can be easily detected by the detector.
The neutron is a compact object so it can be easily detected by the detector