From a targeted attack at sunrise to the high-tech forensic labs, this episode pulls back the yellow tape to reveal the chemistry of crime-solving. We explore the critical toolkit of forensic scientists, starting with the high-stakes difference between quick presumptive tests—like the pink-turning Kastle-Meyer test—and the definitive confirmatory tests that hold up in a court of law.

We dive into the investigation of firearms, explaining how the Modified Griess Test uncovers invisible gunpowder residue and how GC-MS technology creates a "molecular fingerprint" to identify unknown substances. Finally, we demystify the world of DNA analysis, from the "copy machine" power of PCR to the specialised Y-STR testing used to isolate genetic profiles. Whether it’s analysing a stained kitchen knife or searching the CODIS database for a match, discover how hard evidence ensures justice is served.

Hosted on Acast. See acast.com/privacy for more information.

Caramelisation is an essential culinary process that turns simple ingredients into mouth-watering dishes, but what's actually happening when sugar goes from white crystals to that complex, nutty, bittersweet liquid?

In today's episode of the chempod, we will explore the sticky but rich world of caramelisation, how it works, what foods it is involved with, and practical tips in the kitchen so that you can finesse the art of creating the perfect caramelised treat.

Hosted on Acast. See acast.com/privacy for more information.

Hosted on Acast. See acast.com/privacy for more information.