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Non-Electric Hearing Aids Outperform Modern Devices

Those who can overcome their vanity can revert to technology that has proven to work.

Could We Run Modern Society on Human Power Alone?

Unlike solar and wind energy, human power is always available, no matter the season or time of day.

Heat Storage Hypocausts: Air Heating in the Middle Ages

The heat storage hypocaust could keep a room warm for days with just one firing of the furnace.

Vietnam's Low-tech Food System Takes Advantage of Decay

Vietnam’s decentralised food system has low energy inputs and reduced food waste, giving us a glimpse of what an alternative food system might look like

Rebooting Energy Demand: Automatic Software Upgrades

More and more consumer products are controlled by networked software: what does this mean for energy demand, and exactly who is responsible for increasing consumption?

Medieval Heating System Lives on in Spain

The expression “estar en la gloria” (to be inside the gloria) means that someone feels happy and comfortable.

Why the Office Needs a Typewriter Revolution

Could we rethink and redesign office equipment, combining the best of mechanical and digital devices?

The Curse of the Modern Office

The information society promises to dematerialise society and make it more sustainable, but modern office and knowledge work has itself become a large and rapidly growing consumer of energy and other resources

Pigeon Towers: A Low-tech Alternative to Synthetic Fertilizers

Pigeon towers helped Persian farmers cultivate all kinds of crops on previously arid, thin-soil land.

How to Get Your Apartment Off the Grid

Solar panels on window sills and balconies can supply more power than you would think.

Slow Electricity: The Return of DC Power?

Directly coupling DC power sources with DC loads can result in a significantly cheaper and more sustainable solar system.

Power Water Networks

Hydraulic power transmission is very efficient compared to electricity when it is used to operate powerful but infrequently used machines.