4 ms·
My understanding of his/her comment was that vertical acceleration is "up & down" (perpendicular to the earth).
by JonFish85 13y ago
My understanding of his/her comment was that vertical acceleration is "up & down" (perpendicular to the earth).
- mcguire 13y agoI believe specifically, perpendicular to the passenger's horizontal reference frame.
- IvyMike 13y agoAre you saying that laying down on a roller coaster would make it less nauseating? Admittedly I have not tried it but I don't think that would work.
- gaius 13y agoIt would, but not for the reason you think: lying on your back activates the mechanism you still have from when you were a baby that stopped you getting motion sickness when you were being carried by your mother. We advise people suffering from seasickness that one thing they can do is lie on their backs, and it often is enough by itself.
- bashinator 13y agoThat would also be one reason why motion sickness in microgravity is so pernicious.