New Saudi train ready to shuttle hajj pilgrims

The Mashair Railway, also known as Mecca Metro, rolls out on Sunday to serve pilgrims beginning the annual hajj rituals near the Muslim holy city, bringing a new solution to crowding.

Security experts warn of risky attacks on tech-loaded cars

(Phys.org) -- Now that tiny computers and electronic communications systems are being designed into cars, hackers can look toward the car, like the PC, as potential roadkill. If cars are to become computers on wheels, a number ...

Competing to create a more energy-efficient air conditioner

A University of California, Davis, challenge to build more energy efficient air conditioning has spurred a major global manufacturer to build a rooftop air conditioner that is 40 percent more energy-efficient than conventional ...

ORNL roof and attic design proves efficient in summer and winter

(Phys.org)—A new kind of roof-and-attic system field-tested at the Department of Energy's Oak Ridge National Laboratory keeps homes cool in summer and prevents heat loss in winter, a multi-seasonal efficiency uncommon in ...

How much are you polluting your office air just by existing?

Just by breathing or wearing deodorant, you have more influence over your office space than you might think, a growing body of evidence shows. But could these basic acts of existence also be polluting the air in the office ...

Roof and attic design proves efficient in summer and winter

(Phys.org)—A new kind of roof-and-attic system field-tested at the Department of Energy's Oak Ridge National Laboratory keeps homes cool in summer and prevents heat loss in winter, a multi-seasonal efficiency uncommon in ...

Nanotech filter coating offers promise against COVID-19

A physics professor from the University of Houston has developed a nanotech coating designed to allow air filters to capture airborne or aerosolized droplets of the virus that causes COVID-19.

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