When I read "uses physics" my grumpy morning attitude thought "Sorcery would have been cooler than Physics." How else does one split wood if not with physics?

When I read "uses physics" my grumpy morning attitude thought "Sorcery would have been cooler than Physics." How else does one split wood if not with physics? As someone pointed out elsewhere the article is not well written, 15 seconds on the product's homepage and you get a better idea of what is happening.