Perfluorocompounds (PFCs) have long lifetimes and high global-warming potentials.
While human space travel is daunting, machines – with their indefinitely long lifetimes – could travel the galaxy.
This only works for active stars with large spots characterized by long lifetimes.
Because of their long lifetimes, these dark excitons are appealing candidates for quantum computing and optoelectronics.
The reason is that CCS investments involve huge construction costs with the expectation of long lifetimes.
Traces of water dramatically reduce the otherwise long lifetimes and comparatively high quantum yields.
The novel SiCNW-supported catalyst shows potential for fuel cells with long lifetimes.
Both acetylene and acetone have long lifetimes and provide a source of dicarbonyls in the free troposphere.
One accounts in this manner for greater persistence of the radiative forcing for gases with long lifetimes.
Compared to enclosed batteries, this configuration offers several important advantages including long lifetimes and independent scaling of power and energy.
But chlorofluorocarbons have long lifetimes, and could still float around in the atmosphere 100 years from now, Newman said.
