In her new book “South to America,” author Imani Perry seeks to change how people view the American South and, thus, the country’s history as a whole. Jeffrey Brown spoke with Perry, who traveled through the southern regions of the U.S. and explored the complexities and misperceptions she found along the way.
How quantum friction explains water’s strange flows in carbon nanotubes, and the latest from the Nature Briefing.
In this episode:
00:53 A theory for water’s baffling behaviour in carbon nanotubes
At large scales, water flows faster through a wider pipe than a narrower one. However, in tiny carbon nanotubes flow-rate is flipped, with water moving faster through the narrowest channels. This week, researchers have come up with a new explanation for this phenomenon: quantum friction. If validated, it could allow material designers to fine-tune flows through tiny channels, which could be useful in processes such as water purification.
Research Article: Kavokine et al.
06:43 Research Highlights
Creating soap bubbles that last 200,000 times longer, and hippos’ habit of aggressively spraying dung when they hear a stranger.
Research Highlight: No bursting for these record-breaking bubbles
Research Highlight: Hippos know strangers’ voices — and make a filthy reply
09:08 Briefing Chat
We discuss some highlights from the Nature Briefing. This time, a global study reveals how antibiotic-resistant infections have led to millions of deaths, and a genetic mutation that plays a big role in a dog’s size.
Nature News: The staggering death toll of drug-resistant bacteria
Nature News: Big dog, little dog: mutation explains range of canine sizes
Nature Video:
Winnebago has unveiled its e-RV, a fully electric RV camper van concept developed by Winnebago Industries’ Advanced Technology Group. It encompasses all the right buzz words: zero emissions, energy efficiency, functionality, sustainability, flexibility, innovation, connectedness, and eco-friendliness. The Winnebago e-RV is an all-electric motorhome designed for the electric age.
Boomers Daily 