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I'm wondering if the boldfaced preposition in the following sentence is properly used.

In November 2020, Virgin Hyperloop held the first passenger trials on its high speed vacuum tube transport pods. The transportation system uses magnetic levitation, or maglev, train technology.

Compare:

Virgin Hyperloop says it made transportation history on Sunday when it tested human travel in a lightning-quick hyperloop pod for the first time.

Are both sentences correct in terms of preposition use? If so, why is "on" used in one but "in" in the other?

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    Because the first one is "trials on pods" and the second one is "travel in pods". Different words take different prepositions. – ColleenV Mar 23 at 17:14
  • Why didn't the first one take "of"? "Trial of pods" seems more natural? – Apollyon Mar 24 at 2:24
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In November 2020, Virgin Hyperloop held the first passenger trials on its high speed vacuum tube transport pods....

Virgin Hyperloop says it made transportation history on Sunday when it tested human travel in a lightning-quick hyperloop pod for the first time.

On the use of prepositions for 'trials', both on and of are acceptable.

trial noun (TEST) C1 [ C or U ] a test, usually over a limited period of time, to discover how effective or suitable something or someone is:

They're doing clinical trials on a new drug.

Clinical trials of the new drug may take five years.

https://dictionary.cambridge.org/dictionary/english/trial

There is no mention of 'trial in' in the passage, and hence there should be no debate; the passage mentions 'travel in'. Debates on preparation choice for 'travel' is a separate matter.

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