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Nikola Labs are developing a phone case that can extend the battery life of smartphones using wasted energy. >

iCAPTCHA by Bilingo is a service that checks that you’re not a robot while teaching South Africans words from the 11 official languages. >

Cape Town-based designer Porky Hefer has created bizarre human-scale nests, inspired by fantastical underwater creatures. >

Jason Ratliff’s work plays on imagination, wonder and play in his illustrated superhero series. >

The UK is at the forefront of renewable energy with plans to launch a new era of tidal energy. >

Water Culture by experimental Italian design studio Fabrica is a textile that responds to rain by producing cheerful prints to offset gloomy weather. >

A multimedia guidebook helps visitors see Tokyo in different ways, through the eyes of its 46 contributors. >

Sweden's ICEHOTEL group announces plans to build a sustainable frozen hotel, preserved in summer by solar energy. >

Designed by Brazilian architecture firm Pascali Semerdjian Arquitetos, Toy MM01 was built purely to house toys and entertain guests. >

SAROS is a simple and environmentally friendly alternative to costly, energy-wasting desalination plants. >

Japanese glass artist Satoshi Tamizu places a tiny universe in each piece he creates. >

Faig Ahmed weaves digital patterns and optical illusions into traditional Azerbaijani rugs. >

A team of designers have come up with a lightweight, amphibious mp3 player using bone conduction. >

Story Pod is a reading nook and book exchange by day and a community lantern by night. >

Architect Louise Braverman designed solar-powered housing for healthcare workers in the remote Burundian village of Kigutu. >

Designer Nienke Hoogvliet is calling attention to the global overfishing crisis by reusing salmon skin in her Re-sea Me décor range. >

Rickshaws made over by a collection of prominent designers in the name of India’s elephants. >

Japanese architects have created a curtain of carbon fibres to support their newly designed building during an earthquake. >

Portable chlorine maker provides easy access to clean, drinkable water in low resource communities. >

With this design, an instructions booklet and a set of flat-pack pieces that can be easily fitted together are all you need to start farming in the city. >

Archie Archambault’s minimal maps simplify the layout of cities so that we don’t have to rely on Google. >

Scientists have come up with a number of designs for what life would be like when staying on Earth is no longer an option. >