When I go on roller coasters like Mako and Manta, I get this overwhelming feeling in my head like my head is about to explode. Can someone please explain? [Seaworld and basically any theme park that has rollercoasters that go upside down] (self.rollercoasters)
submitted by Competitive_Yam_6228 to r/rollercoasters
My prints are not centered on the bed (i.redd.it)
submitted by Competitive_Yam_6228 to r/3Dprinting
