Danish company CeramicSpeed has developed what could be the world's most efficient bicycle drivetrain and has built a prototype to prove it. More about CeramicSpeed's ultra-efficient Driven bicycle works without a chain
German design student Philip Frenzel has designed an iPhone case that springs open to stop your device from smashing when you drop it. More about Pop-out ADcase acts like airbag for your iPhone
This range of furniture by designer Joel Blanco is designed to bring messiness into people's homes. More about Joel Blanco's Messless furniture encourages chaos in the home
These triangular tiles by Brooklyn studio GRT Architects can be arranged to look like the fluted columns of ancient Greek and Roman buildings, or rotated to form abstract patterns. More about Flutes and Reeds tiles by GRT Architects evoke classical architecture
Royal College of Art Innovation Design Engineering student Hamza Oza has created a cloud-based system that helps families locate their loved ones during Hajj without the need for a smartphone or phone signal. More about Hamza Oza debuts tracking device for pilgrims that operates without a mobile network
Stella McCartney set out her sustainable approach to design in an interview with Dezeen last week. Here's a look at the five of her sustainable designs, including trainers made from sea plastic and a backpack made from fishing nets. More about Five of Stella McCartney's designs that push the sustainable agenda
Conrad Willems' architectural sculptures based on toy blocks feature in a solo exhibition inside a Victor Bourgeois modernist villa in Brussels. More about Conrad Willems creates modular stone structures based on children’s building blocks
Japanese artist Yayoi Kusama has scattered mirrored balls inside a hurricane-damaged train garage on New York's Rockaway Peninsula, as the latest instalment in her 52-year-old Narcissus Garden series. More about Yayoi Kusama fills abandoned garage in New York's Rockaways with 1,500 mirrored balls
The Nike boot that will be worn by players in the next European football season is designed to support a more attack-focused form of play. More about Nike's PhantomVSN football boot is designed to suit an attack-focused game
In this competition, Dezeen readers have the chance to win one of three copies of Viktor & Rolf Cover Cover, a book created by graphic designer Irma Boom to mark the 25th anniversary of the Dutch fashion label. More about Competition: win a copy of Viktor & Rolf Cover Cover
Central Saint Martins' graduate Magda Sabatowska has devised a cooking kit to help isolated elderly female residents of housing estates in Poland socialise with their neighbours. More about Subscription cookery kit is designed to help elderly women socialise
Aston Martin aims to bring luxury private transport to the sky with its Volante Vision Concept aircraft – a flying autonomous, hybrid-electric vehicle that can take off vertically. More about Aston Martin takes to the skies with first aircraft concept
Zaha Hadid Architects has recreated the form of Danish designer Hans J Wegner's 1963 CH07 lounge chair in stone and carbon fibre. More about Zaha Hadid Architects reinterprets classic Hans J Wegner chair in stone
Graduates Saki Maruyama and Daniel Coppen have designed a set of children's toys that encourage "free and open-ended play." More about Saki Maruyama's Knotty children's toy set encourages playfulness
Engineers from the Massachusetts Institute of Technology have made a blind robot that moves by feeling, without the need for sensors and cameras. More about MIT's blind Cheetah 3 robot can navigate without sensors or cameras
Swedish tech startup Einride has designed T-log, a fully electric and autonomous logging truck, which is designed to hit public roads by 2020. More about Einride reveals driverless all-electric logging truck
Kingston School of Art graduate Oksana Bondar has created a dressing table stool from human hair to demonstrate the design possibilities of the material. More about Oksana Bondar uses human hair to create biodegradable stool
Royal College of Art graduate Jun Kamei has built a garment that functions like gills, which could allow humans to survive when sea levels rise up and submerge the earth. More about Jun Kamei's amphibious garment could enable humans to breathe underwater
Leeds Beckett University graduate James Hughes has made a bench with metal spikes embedded in its seat to highlight issues surrounding hostile urban design. More about James Hughes creates Hostile Bench to show "ugly side" of urban design
The latest sculpture at the annual Goodwood Festival of Speed features six Porsche cars attached to a 52-metre-high star-shaped white structure. More about Goodwood Festival of Speed sculpture by Gerry Judah celebrates 70 years of Porsche production