Ep 11: Nanotech, the coffee filter, and how computers search

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Welcome to the Ada Lovelace Day podcast, highlighting the work of women in STEM. Each month, we talk to women from around the STEM world about their careers, as well as talking to women and men, about historic and modern women’s achievements, discoveries, and inventions.

In this episode

00:31: Nanochemist Dr Suze Kundu explains how she’s using nanostructures to extract energy from sunlight.

25:13: Our invention this month is at once both mundane and essential — it’s the coffee filter!

28:12: Dr Sue Black OBE, the founder and CEO of #techmums, talks about the work of computer scientist, Karen Spärck Jones.

Dr Suze KunduOur interviewees

Dr Suze Kundu

Dr Suze Kundu is a teaching fellow at the Department of Chemical and Process Engineering at the University of Surrey. A nanochemist both literally and professionally, Suze’s research focuses on materials that can capture solar energy. Suze is a passionate science communicator, giving regular public lectures at schools, universities and science festivals.

You can follow Suze on Twitter @funsizesuze. Photo: Paul Clarke

Dr Sue Black OBEDr Sue Black OBE

Dr Sue Black OBE is a technology evangelist, digital skills expert and social entrepreneur. A champion for women in computing, she founded BCSWomen, the UK’s first online network for women in tech, and #techmums, a social enterprise which empowers mums and their families through technology. Sue has also published Saving Bletchley Park, about the successful campaign that she led to save Bletchley Park.

You can follow Sue on Twitter @Dr_Black, and can find out more about her on her website.

Melitta BentzDiscovery of the Month

This month, we look at the story of the coffee filter, invented in 1908 by Melitta Bentz who patented her invention and launched her own company.


This month, we’ve got a signed copy of Dr Helen Czerski’s Storm in a Teacup: The Physics of Everyday Life, to give away. In this, her newest book, Helen uses physics to answer some vexing questions, such as why does it take so long for ketchup to come out of a bottle? And, how do ducks keep their feet warm when they’re walking on ice?

Storm in a TeacupTo take part in this competition, just leave a comment on our Facebook post about this episode of our podcast, and let us know which woman in STEM you most admire! Get your answer in by midnight on 30 April, and we’ll let the winner know via Facebook.

If you want to see Helen talking about her book and her work, then get yourself along to the Scarborough Book Festival at the end of April, the Hay Festival in May, and the British Humanist Association Convention in June. More details on Helen’s website!

Thanks to our sponsor

This podcast is brought to you thanks to the generous support of ARM, our exclusive semiconductor industry sponsor. You can learn more about ARM on their website at ARM.com and you can follow them on Twitter at @ARMHoldings.

If you would like to join ARM as a sponsor of the Ada Lovelace Day Podcast, please email us.

Get in touch!

If you’d like to send us feedback about the show, or if you’d like to take part, please email us. We’re especially interested in hear from men who would like to talk to us about the women in STEM who have influenced them, especially those women who are less well known.


Episode edited by Andrew Marks.

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