Tomorrow's World Today: Temporada 4, Episódio 2
4 - 2: The Power of Air
A math equation from the 1700s and compressed air are used in modern manufacturing; field reporter Greg brushes up on his ABCs and celebrates the first-ever National Pneumatics Day.
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| Hospedado por | Enviado por | |
|---|---|---|
| VidSrc | WatchSeries | 3 anos |