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Search-and-rescue flying saucers, sniffer bees and mobile maps are just some of the inventions that were showcased at a Cambridge University open day.
The event was hosted by the St John's Innovation Centre, which provides support to businesses ranging from entrepreneurs who need office space to mature businesses seeking technology partnerships.
Held at Cambridge's Churchill College, the annual open day gives entrepreneurs and start-ups the chance to demonstrate their innovative ideas.
Pictured is a flying saucer, developed by Cambridge-based company GFS Projects, which could be used as a search-and-rescue alternative to a helicopter.
The saucer is also being trialled on farms for crop inspection and treatment.