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May
31
awarded  Tumbleweed
May
24
awarded  Custodian
May
24
reviewed Approve suggested edit on Can Space-Time Itself Have Energy Qualities Like Momentum?
May
24
asked Can Space-Time Itself Have Energy Qualities Like Momentum?
May
24
awarded  Supporter
May
21
awarded  Editor
May
21
comment Where is a Hollow Object's Center of Gravity?
Thanks, what about the edit? Any ideas?
May
21
revised Where is a Hollow Object's Center of Gravity?
added 51 characters in body
May
21
asked Taking Advantage of Time Dilation
May
21
asked Where is a Hollow Object's Center of Gravity?
Feb
23
awarded  Student
Feb
23
asked Black Hole, Object or Portal?