A bright-line rule is an objective legal standard that does not allow courts to weigh other factors. Bright line may also refer to: *

Brightline Brightline (reporting mark BLFX) is an intercity rail route in the United States that runs between Miami and Orlando, Florida. Part of the route runs on track owned and shared by the Florida East Coast Railway. Brightline is the only privat ...

, a rail system in Florida, USA *

Brightline West Brightline West is a proposed privately run high-speed rail route, currently in early construction, to link the Las Vegas Valley and Rancho Cucamonga in Greater Los Angeles through the California high desert via Interstate 15. The line will ...

, a future rail system in the Western US *

Bright railway line The Bright railway line was a railway line in Victoria, Australia constructed by the Victorian Railways as a branch from the previously constructed Yackandandah line to Beechworth, with the Bright line branching at Everton. The line followed ...

, a defunct rail line in Australia *A

Spectral line A spectral line is a weaker or stronger region in an otherwise uniform and continuous spectrum. It may result from emission (electromagnetic radiation), emission or absorption (electromagnetic radiation), absorption of light in a narrow frequency ...

Emission spectrum The emission spectrum of a chemical element or chemical compound is the Spectrum (physical sciences), spectrum of frequencies of electromagnetic radiation emitted due to electrons making a atomic electron transition, transition from a high energ ...

of a chemical or atom

See also