This Scale is designed to help you identify your chronotype, that is, your tendency toward a morning ("lark"), mid-range or evening ("owl") circadian rhythm pattern. To complete this Scale, read each question and consider all of the responses carefully. Then, check your answer for each of the six items on this Scale as accurately as you can. When completed, click on the "Results" button and your score will calculated.

Prototype maglev trains have been tested in Japan, Germany and China. The first commercial line, built by German company Transrapid, opened between Shanghai, China, and the city's Pudong Airport in 2003, and has clocked a record speed of 500 kilometres per hour. In the United States, projects are planned for Pittsburgh and Baltimore.

But the future of such trains may depend in part on their environmental impact. Previous studies have shown that maglev and intercity trains can be equally loud. But noise-pollution depends on the quality of the noise as well as its volume.

At high speeds, says Vos, "the maglev sound is similar to that of some aircraft".

A morally black-and-white superhero book about the war on terror is a painfully oversimplified version of a complex issue that continues to kill people daily. This should be apparent to anyone of reasonable intelligence, no matter where they stand on the war itself. The war on terror is no place for flag-waving jubilation. Even from the most favourable perspective, it is a necessary evil. This is not 1942, and jingoism is hollow for modern audiences. They are too sophisticated for that