YOU SAID:

ok Google, what is a branchistochrone?

INTO JAPANESE

[ok] を branchistochrone を Google か。

BACK INTO ENGLISH

OK, Google branchistochrone?

INTO JAPANESE

[Ok] を Google branchistochrone?

BACK INTO ENGLISH

OK, it's Google branchistochrone?

INTO JAPANESE

[Ok] をそれは Google branchistochrone ですか。

BACK INTO ENGLISH

OK, it's Google branchistochrone?