C oca-Cola is introducing the world’s first hydrogen-powered vending machine at World Expo 2025 in Osaka Japan next month.

After a “wouldn’t it be cool if…” discussion with his friends, [Mistablik] decided to use his summer break to construct a soda vending machine that fit entirely within his school locker.

The new vending machines have a slightly larger footprint thanks to an additional generator module on the side. That’s where ...