These anti-motion sickness glasses work by creating an artificial horizon in the wearer’s vision ... I didn’t know how they’d fare at night when the liquid wasn’t visible but I read on my kindle with ...

Artificial light at night, while seemingly harmless, is linked to increased cancer risks according to several studies. Research highlights that exposure to artificial light disrupts the body's ...

An artificial horizon for sea use has been wanted for the ... its rise or fall is readily perceived on the respective legs of the spanner. At night the central wire may be used for observations.

[Ken] recently obtained an attitude indicator—sometimes called an artificial horizon—from an F-4 fighter jet. Unlike some indicators, the F-4’s can rotate to show pitch, roll, and yaw ...