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Pavegen are a company who have come up with revolutionary technology that transforms the power of people's footsteps into energy. Linda Lewis meets the CEO Laurence Kemball Cook, who reveals how the company has teamed up with Tribal Planet in Silicon Valley to turn the data from footsteps into a 'digital currency' which people can spend using their mobile phone.

Linda Lewis visits the people behind Cauli Rice an innovative range of low carb, low calory rice made from cauliflower which available in supermarkets. About a year ago Gem Misa was one of the finalists slightly nervously lined up to pitch their business idea to Richard Branson in the annual Virgin competition for start-ups and new businesses. An advertising campaign was part of their prize, Cauli Rice got a lot of media attention. And not long afterwards their innovative range of low carb, low calorie rice made from cauliflower was launched in supermarkets and online. Since then, co-founders Gem Misa and her husband Jamie have raised more investment, won more prizes and are already planning various new flavours and business extras, such as a subscription service for people watching their weight who want their low carbs delivered straight to the door in a regular order. With sales soaring, they've also opened an office in Battersea, South London.

As exam season draws closer and closer, a free new app is bringing a fresh new approach to studying and revision. Gojimo have over 160,000 practice questions on all popular subjects and offer tutoring via instant messaging, available 24/7. Linda Lewis meets the founder, George Burgess, and the young team behind Gojimo on Company Casebook who explain how it all started.

Linda Lewis heads over to Snact this week, a company that makes fruit jerky from surplus fruit. She meets founders Ilana Taub and Michael Minch Dixon, asking them how they set up the company. The pair convey their passion for cutting food waste, their aim to collect unwanted fruit from markets and suppliers, and turn it into something that people would want to buy.

The Bank of England Museum houses gold bars, bank notes and a whole host of exhibits charting the Bank's role at the heart of Britain's financial system stretching back over 300 years. Linda Lewis has been along to meet the curator Anna Spender and find out what's on offer to visitors.