On this week’s show, Staff Writer Robert F. Service talks with host Sarah Crespi about manipulating microbes to make them produce building materials like bricks—and walls that can take toxins out of the air.
Sarah also talks with Paul Davids, principal member of the technical staff in applied photonics & microsystems at Sandia National Laboratories, about an innovation in converting waste heat to electricity that uses similar materials to solar cells but depends on quantum tunneling. And in a bonus segment, producer Meagan Cantwell talks with Online News Editor David Grimm on stage at the AAAS annual meeting in Seattle.
They discuss how wildfires can harm your lungs, crime rates in so-called sanctuary states, and how factors such as your gender and country of origin influence how much trust you put in science.
This week, machine learning helps batteries charge faster, and using bacterial nanowires to generate electricity from thin air.
I was skeptical, but it turns out there is something to be said for practicing a rather prolonged diurnal fast, preferably one lasting at least 16 hours. Mark P. Mattson, neuroscientist at the National Institute on Aging and Johns Hopkins University School of Medicine, explained that the liver stores glucose, which the body uses preferentially for energy before it turns to burning body fat.


On this week’s show, senior correspondent Jeffrey Mervis joins host Sarah Crespi to discuss a new National Institutes of Health (NIH) grant program that aims to

Hear the latest from the world of science, brought to you by Nick Howe and Shamini Bundell. This week, uncovering the structure of materials with useful properties, and quantum entanglement over long distances.
On this week’s show, Staff Writer Jennifer Couzin-Frankel joins host Sarah Crespi to talk about
The hope, Lee says, is that ultrasound will kill cancer cells in a specific way that will also engage the immune system and arouse it to attack any cancer cells remaining after the treatment.
Ultrasound waves—sound waves with frequencies higher than humans can hear—have been used as a cancer treatment before, albeit in a broad-brush approach: high-intensity bursts of ultrasound can heat up tissue, killing cancer and normal cells in a target area. Now, scientists and engineers are exploring the use of low-intensity pulsed ultrasound (LIPUS) in an effort to create a more selective treatment.