Smartphone apps can help you lose weight

Already the documentation of the diet leads to a weight loss Even the regular documentation of our diet can help to lose weight. © Kritchanut / iStock Read out A simple trick can bring success in losing weight: Even the documentation of the ingested food with an app leads after some time to a measurable weight reduction, as a study shows.
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Mars helicopter passes first flight test

Mini-helicopter to be 2021 first flying drone on the red planet NASA's Mars helicopters could become the first aircraft on a foreign planet in 2021 - now it has completed its first flight test. © NASA / JPL-Caltech Read out Maiden flight under Martian conditions: NASA's Mars helicopter has successfully completed its first flight tests.
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