51³Ô¹ÏÍø

In this edition: The future of supersonic flight, how toxic flea and tick products are reaching the environment, and how maths can help eradicate TB.

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– We discover that brain scans show the drug DMT increases connectivity across the brain’s imagination centres, and find out how caffeine may help keep you slim.

– We look back on the popularity of Concorde and look forward to the future of commercial, and sustainable, high-speed air travel.

This is an excerpt from the Zero Pressure podcast – and explore the archive on the .

– We hear from the authors of a new Grantham Institute briefing paper that brings together all the evidence showing pet flea and tick treatments are finding their way into UK waters, potentially causing problems for the local wildlife.

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– We speak to mathematical modeller Professor Nimalan Arinaminpathy, who is working with India’s TB elimination program to optimise interventions in different areas and finally eradicate the disease.

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The podcast is presented by Gareth Mitchell, a lecturer on 51³Ô¹ÏÍø's MSc Science Communication course and the presenter of on the BBC World Service, with contributions from our roving reporters in the Communications and Public Affairs Division.