Daniel and Kelly explore the oft-forgotten scientific contributions of Dr. Nettie Stevens, who discovered that chromosomes are responsible for determining an organism's sex.

Daniel and Kelly explore the oft-forgotten scientific contributions of Dr. Nettie Stevens, who discovered that chromosomes are responsible for determining an organism's sex.

Scientists Daniel and Kelly cannot stop talking about our amazing, wonderful, weird Universe! Each episode is a fun, easy-to-understand, and in-depth explanation of topics in science, from particles to black holes to moon colonies to ecosystems to parasites and everything else in the Universe!

Scientists Daniel and Kelly cannot stop talking about our amazing, wonderful, weird Universe! Each episode is a fun, easy-to-understand, and in-depth explanation of topics in science, from particles to black holes to moon colonies to ecosystems to parasites and everything else in the Universe!

Daniel and Kelly’s Extraordinary Universe

Nettie Stevens and the Discovery of Sex Chromosomes

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/5bce5c24-e9b8-4c49-a4ed-b2a701021304/transcript

Daniel and Kelly are joined by Dr. Manuel Lerdau to answer listener questions about toxic plants, seed germination, and micropropagation.

Daniel and Kelly are joined by Dr. Manuel Lerdau to answer listener questions about toxic plants, seed germination, and micropropagation.

Listener Questions #47 - Plant Questions (featuring Dr. Manuel Lerdau)

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/a4afdf8f-d814-412e-96e2-b4a5006cb416/transcript

Daniel and Kelly explain the limitations of chemical rockets and how physics can propel humans to the outer reaches of the solar system.

Daniel and Kelly explain the limitations of chemical rockets and how physics can propel humans to the outer reaches of the solar system.

How far can we go with chemical rockets?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/da75024b-31db-4171-9aab-b4a30008aadf/transcript

It's July 2026, and the United States is dealing with an outbreak of cyclospora. Diarrhea makes people think of Kelly, so today we're dealing with the many questions Kelly has gotten about parasites in our food supplies.

It's July 2026, and the United States is dealing with an outbreak of cyclospora. Diarrhea makes people think of Kelly, so today we're dealing with the many questions Kelly has gotten about parasites in our food supplies.

Cyclospora (and other diarrhea-inducing parasites)

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/4caf9ede-c5b2-469a-b86f-b49e00398943/transcript

Nettie Stevens and the Discovery of Sex Chromosomes

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Daniel and Kelly’s Extraordinary Universe

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