The blindspot, a white cane with friend-finding technology, two prosthetic arm options and a reliable pump to provide clean water in developing countries are amongst the top twenty inventions short-listed for this year's James Dyson award.
550 inventions were submitted from 18 countries. The prize-winner who will take home £10,000 for themselves, and £10,000 for their faculty will be chosen by James Dyson and announced on 8th November.
The award was open to any student of product design, industrial design or design engineering who is studying in Australia, Austria, Belgium, Canada, France, Germany, Holland, Italy, Ireland, Japan, Malaysia, New Zealand, Russia, Singapore, Spain, Switzerland, UK or the USA.
Runners up for the overall James Dyson award will receive £2,000.
Several previous award winners and runners-up have gone on to be employed by Dyson.
2010's winner was Samuel Adeloju with a life-saving aid that shoots a flotation device into the water while rescue efforts are underway.
See all the entries in the gallery below and rate your favourite entries: