First News

INNOVATION­S

- This report is from our friends at the National Railway Museum

SCIENTISTS at the University of Gothenburg in Sweden have found that wearing weighted vests can reduce human body weight and fat mass.

Some 69 people with a body mass index (BMI) of 30-35, the lowest level of obesity, took part in the study. For three weeks, they all wore heavy vests, some weighing as much as 11kg, for eight hours a day.

Those who wore the heavier vests lost 1.6kg in weight, while those wearing the light vests shed 0.3kg.

Scientists concluded the body may have a form of “in-built scales”. If these “scales” note a sudden change in weight, they trick the body into reducing a person’s appetite so that they eat less, and therefore lose weight.

IN the early 19th century, British engineer George Stephenson developed locomotive­s for use across Britain.

His designs became so popular that the track width used by his locomotive­s quickly became one of the standards for railways all over the world.

Track width for the railways is known as the rail gauge.

It is the distance between one rail and the other.

Many engineers who developed their own locomotive­s used different track widths to Stephenson’s design, including Isambard Kingdom Brunel, who developed a wider locomotive that travelled between London and Bristol.

But while rail gauges vary all over the world, from very narrow to much wider, Stephenson’s 19th-century design is still one of the most popular in use today.

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