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Ethanol may be touted as a more eco-friendly alternative to fossil fuels, but it requires a great deal of plant-based feedstock. Now, however, scientists at Stanford University have devised a method of producing liquid ethanol from carbon monoxide gas.

Graphene is showing off again. With basically zero acoustic development, a graphene loudspeaker is already boasting a better frequency response curve than a set of Sennheiser MX-400s.

A couple of years after it was first unveiled, Innovation Imperative's Tetra Shed is available to buy. The Tetra Shed caused a stir when it was launched, with its sleek design and its capacity for modular extension. Now, interested parties can get their hands on customized versions.

With cardio-focused trackers in abundance, the team behind Gymwatch is looking to muscle in on the burgeoning wearables market with a sensor that measures strength and motion, meaning it could prove more useful for those looking to gain weight rather than lose it.

Thomas Blug's BluGuitar has recently revealed a 100 W signature boutique tube amp named the Amp1 that's small enough to fit on a pedalboard or throw in a gigbag.

The Pentax 645Z is the latest medium-format camera to use a CMOS sensor. The 51.4-megapixel camera follows on from the Pentax 645D and has a wide sensitivity range, can shoot at an impressive 3 fps burst speed and features Full HD video recording.

Just like Microsoft's Windows 8.1 update, its mobile OS is continuing to move forward with Windows Phone 8.1. This is a major upgrade which is free and available to all Windows Phone 8 users this summer. Here's a look at some of its new features and what you can expect.

A team of students and professors recently unveiled a prototype of what they cite as the future of urban living. The micro-housing unit is set on wheels and can fit into a standard-sized parking space.

A Kickstarter campaign is raising money for a new type of watersport. The Aqua Elliptica works like a cross trainer that is used on water. Users pump away on the footplates to turn a propeller and move the machine forward.

The Defence Advance Research Projects Agency (DARPA) plans to extend connectivity for forward military units with the use of small Wi-Fi-hosting drones, providing a reliable, mobile source of bandwidth to all echelons of the military on a scale unthinkable using current methods.

"Virtual reality needs its arcade moment," argues Zero Latency co-founder Tim Ruse. The Oculus Rift and Project Morpheus headsets may be set to dominate your living room, but the Melbourne-based startup is aiming bigger – offering full immersion with body tracking and real space to move around in.

Scientists at Purdue University have come up with a way of growing corn in caves, but it doesn't involve some bizarre mating of maize and mushroom, but the manipulation of light and temperature.