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Steve Caplin looks at car locks preventing drunk driving, at a 3D printable gun, at Amazon's patent for fulfilment centre robots throwing objects to each other, at Uber fraud, the bluntly honest HiMirror, at the world's largest 3D printer which can make houses and at the Spanish submarines too heavy to float!

James Cameron-Wilson casts his eye over a revived UK box office, with the new Mamma Mia film storming into the No. 1 spot, pushing the highest grossing US animated film ever, Incredibles 2, into second place. With a Spitfire documentary producing an extraordinary per-screen average, James also looks at the DVD release of Filmworker, a highly-recommended documentary about Stanley Kubrick and his longstanding right-hand man.

Graham Spooner of The Share Centre discusses recent numbers from Shell and ITV and looks at the latest supermarket market share numbers. He also looks ahead to results forthcoming from Barclays and RBS as well as from Centrica and Taylor Wimpey.

Working out what to do with a life-changing sum of money is a nice problem to have but that doesn’t mean it’s not tricky. We’ve all read the stories of inheritances, lottery wins and other windfalls squandered - and even if you have spent a lifetime building your wealth, whether through investing or business, it would still be all too easy to rattle through the cash. On this week’s podcast, we look at a question from This is Money’s new Wealth Check section on what to do with £1.2million from a business sale: how to spend some enjoying life and invest the rest so that it is not at too much risk but still grows. From there, Simon Lambert, Tanya Jefferies and Georgie Frost dive into what a life-changing sum of money might be, why more people are getting them, and what you might do with it. For those without that luxury, we look at why engaging with your pension investments is being tipped as a way to retire early - and whether a bit less time panic scrolling on social media might buy you the time to do that.

Want to keep up with the latest earnings updates from the States? Well join Chris Hill and the Motley Fool Radio Show team here on Share Radio, direct from Washington DC, for news, views and analysis of the US stocks that matter. In this week's show: Microsoft shares hit an all-time high thanks to strength in the company’s cloud business; Netflix falls on concerns over subscriber growth; American Express doesn’t get rewarded; And Skechers gets kicked around.

Today we're joined by one of the world's most decorated economists, Professor Vernon Smith - Nobel Prize winner in economics, and a long-time friend of the Institute of Economic Affairs. Professor Smith gives his analysis of current economic trends in the US and throughout Europe, including his take on Donald Trump's tariffs and obstacles to free trade. If you like what you hear, be sure to watch Professor Smith's lecture at this year's THINK conference.

In between the resignations and the reshuffles, what have we learned about where Brexit will go next? Much of the focus has been on the response to the deal the prime minister reached with her cabinet at Chequers, but what was in the deal itself? How practical is the government’s position on Brexit? And what are the alternatives? Ayeisha Thomas-Smith is joined by Marley Morris, senior research fellow at the Institute for Public Policy Research, and Andrew Pendleton, NEF’s director of policy and advocacy.

In this episode of Policy Matters, host Matt Dickson talks to Laura van der Erve from the Institute for Fiscal Studies about the merits of doing a university degree, and what recent evidence suggests are the relative labour market returns to degrees in different subjects at different institutions. With almost 50% of young people in England going on to Higher Education, and with tuition fees of £9,250 for most courses, it has never been more important to understand the impact on earnings of studying different subjects and at different HE institutions. Laura describes recent research from the IFS looking at graduate outcomes and explains some of the difficulties in pinning down the impact of a particular course on later earnings and employment. They then discuss social gradients in attending university and the extent to which inequalities have been impacted by changes in tuition fees. Finally, talk turns to thinking about the sorts of things students need to know in advance in order to make an informed decision about where to apply and what to study, how the government can help with this, and the limits of information provision as a policy.

Adam Cox is joined by Calum Brannan, tech start-up entrepreneur and CEO of “No Agent”: a new app designed specifically for landlords. They discuss frustrations that Buy-to-Let landlords have with working with letting agents, and how “No Agent” can make a difference. Calum explains his experience of letting agents as inefficient and overpriced, and how he intends to disrupt the old-fashioned market in the same way that Uber transformed the taxi industry.

Adam Cox talks to Michael Shapiro, Head of Commercial Litigation & Dispute Resolution at GSC Solicitors LLP, about one of the most visible parts of the legal process: litigation. Michael explains that a lot of litigation comes about as a result of poor planning at the start of a business relationship, and that prevention is much better and cheaper than the cure. He talks about why factors such as ego, stubbornness and revenge can drive a case to court – and why there are much better, and far less risky, ways to seek resolution. Would you take your business to court to prove a point?