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The Download: a new hunt for dark matter and Kenya’s case for going solar

The Download: a new hunt for dark matter and Kenya’s case for going solar

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. The search for dark matter has been blown wide open For decades, physicists have hunted for weakly interacting massive particles (WIMPs), a leading...

Geoengineering still faces major practical challenges

Geoengineering still faces major practical challenges

Solar geoengineering is often portrayed as a sort of emergency brake. Something along the lines of Pull in case of climate emergency to scatter light-reflecting particles to bounce sunlight out of the atmosphere and cool the planet. But it might be less like a simple brake and more like a...

The Download: a reality check for geoengineering and the science of interoception

The Download: a reality check for geoengineering and the science of interoception

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. Hacking the atmosphere: geoengineering gets a reality check Solar geoengineering, the controversial idea that we could deliberately intervene in the...

Hacking the atmosphere: Geoengineering gets a reality check

Hacking the atmosphere: Geoengineering gets a reality check

Jim Franke pulls away the cover page of a presentation on the wraparound desk in his office, revealing an illustration of an odd-­looking aircraft with massive wings stretching out from a stubby fuselage. The uncrewed plane is soaring thousands of meters higher than commercial jets fly—so high you...

Entrepreneurs in Nairobi make the case for going solar

Entrepreneurs in Nairobi make the case for going solar

__________________________THE PLACENairobi, Kenya Most of Kenya’s power grid runs on renewables. But with 25% of communities lacking centralized electricity, the nation is looking to off-grid solar to hit its goal of delivering universal electricity access by 2030 without driving up emissions. The...

Une veste qui fabrique de l'eau potable à partir de l'air, comme dans Dune

Une veste qui fabrique de l'eau potable à partir de l'air, comme dans Dune

Des ingénieurs de l'université du Texas à Austin ont mis au point un vêtement qui tire de l'eau potable directement de l'air ambiant, sans réservoir à remplir ni source à proximité, simplement grâce au tissu dont il est fait. Le travail, mené par Guihua Yu et son équipe de la Cockrell School of...

These new solid-state ACs promise a cool future. Scientists aren’t so sure.

These new solid-state ACs promise a cool future. Scientists aren’t so sure.

After three years of record-­breaking heat, this one is set to be yet another scorcher. Air-conditioning? Not going anywhere. The International Energy Agency projects that the number of AC units will triple by 2050. That’s good for health—one Lancet study estimated that AC prevented nearly 200,000...