Ok so we've known for awhile how soap works in a general use sense, like how it cleans dishes (see episode 1). But these weird times call for a deeper look at soap. How can it kill a virus? Or more importantly, how can it kill a little, wretched, mischievous virus like COVID-19? Like really, how? How is it that we can use soap to both get spaghetti sauce off ... Show More
Apr 9
How do diapers change color when wet?
#235 You’ve seen it a hundred times… but how does it actually work? Why do diapers change color when they’re wet? What kind of chemistry is happening in there? And how does something as simple as pee trigger such a dramatic color shift? Let’s talk acids, bases, color, and one sur ... Show More
50m 34s
Dec 2023
COP28, swine flu, Bennu asteroid and digital twins.
Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs, In this week's episode... what’s on the agenda for the COP28 climate summit? What do we know about the new strain of swine flu found in North Yorkshire? Samples from the Bennu ... Show More
51m 52s