Tattoos go back centuries across many cultures, and yet their chemistry is still an absolute mystery to most of us. How do tattoos work? What is the ink made of? How does the ink stay in our skin indefinitely? Why don't our bodies get rid of it? Let's do this.
Aug 20
What’s the dark side of air conditioning?
Could a cheaper, more environmentally friendly refrigerant already exist, and could corporate lobbying be helping keep it out of American air conditioners? Why did the chemicals once hailed as safe alternatives become environmental villains, and are their replacements actually mu ... Show More
53m 21s
Jan 2023
Tattoos: a 5,000 year history
Throughout history, people have got tattooed for a huge range of reasons, whether religious devotion, artistic expression, or to demonstrate cultural belonging – or cultural difference. Dr Matt Lodder talks to Charlotte Hodgman about 5,000 years of tattooing history, exploring ev ... Show More
39m 2s
