What is a protein? A biologist explains

A biologist explains where proteins come from and what role the 20,000 or so proteins in your body play in keeping you alive and kicking.

Nathan Ahlgren, Assistant Professor of Biology, Clark University • conversation
Jan. 13, 2021 ~5 min

biology proteins amino-acids curiosity-question

Why do smoke alarms keep going off even when there's no smoke?

An electrical engineer explains how smoke detectors work, and how to reduce the chances of a false positive.

MVS Chandrashekhar, Assistant professor of electrical engineering, University of South Carolina • conversation
Jan. 8, 2021 ~5 min

curiosity electrical-engineering curiosity-question multimedia fire-safety

Virgin births from parthenogenesis: How females from some species can reproduce without males

Parthenogenesis, a form of reproduction in which an egg develops into an embryo without being fertilized by sperm, might be more common than you realized.

Mercedes Burns, Assistant Professor of Biological Sciences, University of Maryland, Baltimore County • conversation
Dec. 15, 2020 ~6 min

 reproduction  biology  eggs  wasps  lizards  sexual-reproduction  embryo  crustaceans  aphids  egg  curiosity-question

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