Biogas: Producing Ultra-Efficient Fuel From Sewage

We could be generating huge amounts of power from sewage. The process is fairly simple — just ferment sewage to produce a fuel called biogas. Biogas is almost entirely methane, and so is natural gas, so the two are essential interchangeable. The potential to produce biogas is almost entirely overlooked by most countries — except Sweden.

Christmas Trees Made With Recycled Bottles

These two Christmas trees were made with recycled bottles. Quite an efficient use for all those empties! The one of the left was made with 1050 beer bottles by Paul Deakin, a student at the University of Southampton (the south coast of England). The tree on the right was made with Grolsch beer bottles. Anyone feeling inspired to knock a …

Can-Crushing Frog


From Japan, comes this frog that can crush cans! You can buy it from this Japanese store. A less whimsical can crusher can be found at Amazon for $20.