Can't see any smoke or steam - how is it powered?

On 28-Sep-20 9:01 AM, Roderick Smith via groups.io wrote:
> JUNE 25 2020 Little blue train back on track at Weston Park
> Bluebell the little train is operating again. Picture: Supplied
> In another sign of life returning to the realms of normality, Bluebell, the little blue train, a favourite of Canberra children, is back operating at Weston Park.
> The train, a much-loved attraction at the Yarralumla Play Station, started tootling around the track again over the weekend. It had not been operating during the coronavirus shutdown - also known as its three-month "holiday".
> The Weston Park railway has been around since 1973, first with a little red train. Bermagui Foundry was commissioned to make Bluebell.
> Bluebell runs every half hour from 10am.
> <www.canberratimes.com.au/story/6805502/the-little-blue-train-is-back-on-track>
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> 200625Th-'CanberraTimes'-WestonPark-Bluebell-train.jpg
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