The U.S. average retail price for regular gasoline fell to $1.92 a gallon on Monday. That's down 8.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for regular gasoline fell to $1.92 a gallon on Monday. That's down 8.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for regular gasoline fell to $1.85 a gallon on Monday. That's down 7.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for regular gasoline fell to $1.85 a gallon on Monday. That's down 7.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for regular gasoline fell to $1.81 a gallon on Monday. That's down 4.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for regular gasoline fell to $1.77 a gallon on Monday. That's down 3.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

The U.S. average retail price for regular gasoline fell to $1.77 a gallon on Monday. That's down 3.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for regular gasoline rose for the first time since February to $1.79 a gallon on Monday. That's up 1.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

The U.S. average retail price for regular gasoline rose for the first time since February to $1.79 a gallon on Monday. That's up 1.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

On April 27, 2020, the U.S. average regular retail gasoline price was $1.77 per gallon (gal), the lowest price since February 2016. On May 4, the U.S. average gasoline price increased slightly to $1.79/gal. The United States declared a national emergency on March 13 in response to concerns regarding spread of the 2019 novel coronavirus disease (COVID-19). From March 16 to May 4, the U.S. average regular retail gasoline price fell by $0.46/gal. The lower gasoline prices reflect low crude oil prices, low gasoline demand, and rising gasoline inventories. ...

Chemists have long known how to convert carbon dioxide into fuels—but up until now, such processes have been too expensive for commercial use. Staff Writer Robert Service talks with host Sarah Crespi about using new filters and catalysts to close the gap between air-derived and fossil-derived gasoline.   Also this week, host Sarah Crespi talks with Nitish Padmanaban of Stanford University in Palo Alto, California, about replacing bifocals with “autofocals.” These auto-focusing glasses track your eye position and measure the distance to the visual target before adjusting the thickness of their liquid lenses. The prototype glasses have an onboard camera and batteries that make them particularly bulky; however, they still outperformed progressive lenses in tests of focus speed and acuity. This week’s episode was edited by Podigy.   Download a transcript (PDF) Listen to previous podcasts.   About the Science Podcast