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Traffic lights were invented in 1868 by a British engineer named J.P. Knight. What was originally a gas-lit traffic signal, has now become powered using electricity and light bulbs. However, that isn’t the only change that’s ever been made. Another instance, the light on top of the signal, was installed more than 100 years later,...

Leah Berenson

Leah Berenson

Science & Technology Journalist

Whether societal pressures or otherwise, many of us tend to fixate on our weight and how we look. For some, this manifests itself in healthy ways, such as eating well and exercising regularly. For others, however, disordered eating and exercise habits take over as we combat our fears of gaining weight or not looking a...

Julie Hambleton

Julie Hambleton

Freelance Writer